题解 | #素数#

#include <iostream>
#include <math.h>

using namespace std;

int prime[10000];
int count = 0;
int ans[10000] = {2,
                  3,
                  5,
                  7,
                  11,
                  13,
                  17,
                  19,
                  23,
                  29,
                  31,
                  37,
                  41,
                  43,
                  47,
                  53,
                  59,
                  61,
                  67,
                  71,
                  73,
                  79,
                  83,
                  89,
                  97,
                  101,
                  103,
                  107,
                  109,
                  113,
                  127,
                  131,
                  137,
                  139,
                  149,
                  151,
                  157,
                  163,
                  167,
                  173,
                  179,
                  181,
                  191,
                  193,
                  197,
                  199,
                  211,
                  223,
                  227,
                  229,
                  233,
                  239,
                  241,
                  251,
                  257,
                  263,
                  269,
                  271,
                  277,
                  281,
                  283,
                  293,
                  307,
                  311,
                  313,
                  317,
                  331,
                  337,
                  347,
                  349,
                  353,
                  359,
                  367,
                  373,
                  379,
                  383,
                  389,
                  397,
                  401,
                  409,
                  419,
                  421,
                  431,
                  433,
                  439,
                  443,
                  449,
                  457,
                  461,
                  463,
                  467,
                  479,
                  487,
                  491,
                  499,
                  503,
                  509,
                  521,
                  523,
                  541,
                  547,
                  557,
                  563,
                  569,
                  571,
                  577,
                  587,
                  593,
                  599,
                  601,
                  607,
                  613,
                  617,
                  619,
                  631,
                  641,
                  643,
                  647,
                  653,
                  659,
                  661,
                  673,
                  677,
                  683,
                  691,
                  701,
                  709,
                  719,
                  727,
                  733,
                  739,
                  743,
                  751,
                  757,
                  761,
                  769,
                  773,
                  787,
                  797,
                  809,
                  811,
                  821,
                  823,
                  827,
                  829,
                  839,
                  853,
                  857,
                  859,
                  863,
                  877,
                  881,
                  883,
                  887,
                  907,
                  911,
                  919,
                  929,
                  937,
                  941,
                  947,
                  953,
                  967,
                  971,
                  977,
                  983,
                  991,
                  997,
                  1009,
                  1013,
                  1019,
                  1021,
                  1031,
                  1033,
                  1039,
                  1049,
                  1051,
                  1061,
                  1063,
                  1069,
                  1087,
                  1091,
                  1093,
                  1097,
                  1103,
                  1109,
                  1117,
                  1123,
                  1129,
                  1151,
                  1153,
                  1163,
                  1171,
                  1181,
                  1187,
                  1193,
                  1201,
                  1213,
                  1217,
                  1223,
                  1229,
                  1231,
                  1237,
                  1249,
                  1259,
                  1277,
                  1279,
                  1283,
                  1289,
                  1291,
                  1297,
                  1301,
                  1303,
                  1307,
                  1319,
                  1321,
                  1327,
                  1361,
                  1367,
                  1373,
                  1381,
                  1399,
                  1409,
                  1423,
                  1427,
                  1429,
                  1433,
                  1439,
                  1447,
                  1451,
                  1453,
                  1459,
                  1471,
                  1481,
                  1483,
                  1487,
                  1489,
                  1493,
                  1499,
                  1511,
                  1523,
                  1531,
                  1543,
                  1549,
                  1553,
                  1559,
                  1567,
                  1571,
                  1579,
                  1583,
                  1597,
                  1601,
                  1607,
                  1609,
                  1613,
                  1619,
                  1621,
                  1627,
                  1637,
                  1657,
                  1663,
                  1667,
                  1669,
                  1693,
                  1697,
                  1699,
                  1709,
                  1721,
                  1723,
                  1733,
                  1741,
                  1747,
                  1753,
                  1759,
                  1777,
                  1783,
                  1787,
                  1789,
                  1801,
                  1811,
                  1823,
                  1831,
                  1847,
                  1861,
                  1867,
                  1871,
                  1873,
                  1877,
                  1879,
                  1889,
                  1901,
                  1907,
                  1913,
                  1931,
                  1933,
                  1949,
                  1951,
                  1973,
                  1979,
                  1987,
                  1993,
                  1997,
                  1999,
                  2003,
                  2011,
                  2017,
                  2027,
                  2029,
                  2039,
                  2053,
                  2063,
                  2069,
                  2081,
                  2083,
                  2087,
                  2089,
                  2099,
                  2111,
                  2113,
                  2129,
                  2131,
                  2137,
                  2141,
                  2143,
                  2153,
                  2161,
                  2179,
                  2203,
                  2207,
                  2213,
                  2221,
                  2237,
                  2239,
                  2243,
                  2251,
                  2267,
                  2269,
                  2273,
                  2281,
                  2287,
                  2293,
                  2297,
                  2309,
                  2311,
                  2333,
                  2339,
                  2341,
                  2347,
                  2351,
                  2357,
                  2371,
                  2377,
                  2381,
                  2383,
                  2389,
                  2393,
                  2399,
                  2411,
                  2417,
                  2423,
                  2437,
                  2441,
                  2447,
                  2459,
                  2467,
                  2473,
                  2477,
                  2503,
                  2521,
                  2531,
                  2539,
                  2543,
                  2549,
                  2551,
                  2557,
                  2579,
                  2591,
                  2593,
                  2609,
                  2617,
                  2621,
                  2633,
                  2647,
                  2657,
                  2659,
                  2663,
                  2671,
                  2677,
                  2683,
                  2687,
                  2689,
                  2693,
                  2699,
                  2707,
                  2711,
                  2713,
                  2719,
                  2729,
                  2731,
                  2741,
                  2749,
                  2753,
                  2767,
                  2777,
                  2789,
                  2791,
                  2797,
                  2801,
                  2803,
                  2819,
                  2833,
                  2837,
                  2843,
                  2851,
                  2857,
                  2861,
                  2879,
                  2887,
                  2897,
                  2903,
                  2909,
                  2917,
                  2927,
                  2939,
                  2953,
                  2957,
                  2963,
                  2969,
                  2971,
                  2999,
                  3001,
                  3011,
                  3019,
                  3023,
                  3037,
                  3041,
                  3049,
                  3061,
                  3067,
                  3079,
                  3083,
                  3089,
                  3109,
                  3119,
                  3121,
                  3137,
                  3163,
                  3167,
                  3169,
                  3181,
                  3187,
                  3191,
                  3203,
                  3209,
                  3217,
                  3221,
                  3229,
                  3251,
                  3253,
                  3257,
                  3259,
                  3271,
                  3299,
                  3301,
                  3307,
                  3313,
                  3319,
                  3323,
                  3329,
                  3331,
                  3343,
                  3347,
                  3359,
                  3361,
                  3371,
                  3373,
                  3389,
                  3391,
                  3407,
                  3413,
                  3433,
                  3449,
                  3457,
                  3461,
                  3463,
                  3467,
                  3469,
                  3491,
                  3499,
                  3511,
                  3517,
                  3527,
                  3529,
                  3533,
                  3539,
                  3541,
                  3547,
                  3557,
                  3559,
                  3571,
                  3581,
                  3583,
                  3593,
                  3607,
                  3613,
                  3617,
                  3623,
                  3631,
                  3637,
                  3643,
                  3659,
                  3671,
                  3673,
                  3677,
                  3691,
                  3697,
                  3701,
                  3709,
                  3719,
                  3727,
                  3733,
                  3739,
                  3761,
                  3767,
                  3769,
                  3779,
                  3793,
                  3797,
                  3803,
                  3821,
                  3823,
                  3833,
                  3847,
                  3851,
                  3853,
                  3863,
                  3877,
                  3881,
                  3889,
                  3907,
                  3911,
                  3917,
                  3919,
                  3923,
                  3929,
                  3931,
                  3943,
                  3947,
                  3967,
                  3989,
                  4001,
                  4003,
                  4007,
                  4013,
                  4019,
                  4021,
                  4027,
                  4049,
                  4051,
                  4057,
                  4073,
                  4079,
                  4091,
                  4093,
                  4099,
                  4111,
                  4127,
                  4129,
                  4133,
                  4139,
                  4153,
                  4157,
                  4159,
                  4177,
                  4201,
                  4211,
                  4217,
                  4219,
                  4229,
                  4231,
                  4241,
                  4243,
                  4253,
                  4259,
                  4261,
                  4271,
                  4273,
                  4283,
                  4289,
                  4297,
                  4327,
                  4337,
                  4339,
                  4349,
                  4357,
                  4363,
                  4373,
                  4391,
                  4397,
                  4409,
                  4421,
                  4423,
                  4441,
                  4447,
                  4451,
                  4457,
                  4463,
                  4481,
                  4483,
                  4493,
                  4507,
                  4513,
                  4517,
                  4519,
                  4523,
                  4547,
                  4549,
                  4561,
                  4567,
                  4583,
                  4591,
                  4597,
                  4603,
                  4621,
                  4637,
                  4639,
                  4643,
                  4649,
                  4651,
                  4657,
                  4663,
                  4673,
                  4679,
                  4691,
                  4703,
                  4721,
                  4723,
                  4729,
                  4733,
                  4751,
                  4759,
                  4783,
                  4787,
                  4789,
                  4793,
                  4799,
                  4801,
                  4813,
                  4817,
                  4831,
                  4861,
                  4871,
                  4877,
                  4889,
                  4903,
                  4909,
                  4919,
                  4931,
                  4933,
                  4937,
                  4943,
                  4951,
                  4957,
                  4967,
                  4969,
                  4973,
                  4987,
                  4993,
                  4999,
                  5003,
                  5009,
                  5011,
                  5021,
                  5023,
                  5039,
                  5051,
                  5059,
                  5077,
                  5081,
                  5087,
                  5099,
                  5101,
                  5107,
                  5113,
                  5119,
                  5147,
                  5153,
                  5167,
                  5171,
                  5179,
                  5189,
                  5197,
                  5209,
                  5227,
                  5231,
                  5233,
                  5237,
                  5261,
                  5273,
                  5279,
                  5281,
                  5297,
                  5303,
                  5309,
                  5323,
                  5333,
                  5347,
                  5351,
                  5381,
                  5387,
                  5393,
                  5399,
                  5407,
                  5413,
                  5417,
                  5419,
                  5431,
                  5437,
                  5441,
                  5443,
                  5449,
                  5471,
                  5477,
                  5479,
                  5483,
                  5501,
                  5503,
                  5507,
                  5519,
                  5521,
                  5527,
                  5531,
                  5557,
                  5563,
                  5569,
                  5573,
                  5581,
                  5591,
                  5623,
                  5639,
                  5641,
                  5647,
                  5651,
                  5653,
                  5657,
                  5659,
                  5669,
                  5683,
                  5689,
                  5693,
                  5701,
                  5711,
                  5717,
                  5737,
                  5741,
                  5743,
                  5749,
                  5779,
                  5783,
                  5791,
                  5801,
                  5807,
                  5813,
                  5821,
                  5827,
                  5839,
                  5843,
                  5849,
                  5851,
                  5857,
                  5861,
                  5867,
                  5869,
                  5879,
                  5881,
                  5897,
                  5903,
                  5923,
                  5927,
                  5939,
                  5953,
                  5981,
                  5987,
                  6007,
                  6011,
                  6029,
                  6037,
                  6043,
                  6047,
                  6053,
                  6067,
                  6073,
                  6079,
                  6089,
                  6091,
                  6101,
                  6113,
                  6121,
                  6131,
                  6133,
                  6143,
                  6151,
                  6163,
                  6173,
                  6197,
                  6199,
                  6203,
                  6211,
                  6217,
                  6221,
                  6229,
                  6247,
                  6257,
                  6263,
                  6269,
                  6271,
                  6277,
                  6287,
                  6299,
                  6301,
                  6311,
                  6317,
                  6323,
                  6329,
                  6337,
                  6343,
                  6353,
                  6359,
                  6361,
                  6367,
                  6373,
                  6379,
                  6389,
                  6397,
                  6421,
                  6427,
                  6449,
                  6451,
                  6469,
                  6473,
                  6481,
                  6491,
                  6521,
                  6529,
                  6547,
                  6551,
                  6553,
                  6563,
                  6569,
                  6571,
                  6577,
                  6581,
                  6599,
                  6607,
                  6619,
                  6637,
                  6653,
                  6659,
                  6661,
                  6673,
                  6679,
                  6689,
                  6691,
                  6701,
                  6703,
                  6709,
                  6719,
                  6733,
                  6737,
                  6761,
                  6763,
                  6779,
                  6781,
                  6791,
                  6793,
                  6803,
                  6823,
                  6827,
                  6829,
                  6833,
                  6841,
                  6857,
                  6863,
                  6869,
                  6871,
                  6883,
                  6899,
                  6907,
                  6911,
                  6917,
                  6947,
                  6949,
                  6959,
                  6961,
                  6967,
                  6971,
                  6977,
                  6983,
                  6991,
                  6997,
                  7001,
                  7013,
                  7019,
                  7027,
                  7039,
                  7043,
                  7057,
                  7069,
                  7079,
                  7103,
                  7109,
                  7121,
                  7127,
                  7129,
                  7151,
                  7159,
                  7177,
                  7187,
                  7193,
                  7207,
                  7211,
                  7213,
                  7219,
                  7229,
                  7237,
                  7243,
                  7247,
                  7253,
                  7283,
                  7297,
                  7307,
                  7309,
                  7321,
                  7331,
                  7333,
                  7349,
                  7351,
                  7369,
                  7393,
                  7411,
                  7417,
                  7433,
                  7451,
                  7457,
                  7459,
                  7477,
                  7481,
                  7487,
                  7489,
                  7499,
                  7507,
                  7517,
                  7523,
                  7529,
                  7537,
                  7541,
                  7547,
                  7549,
                  7559,
                  7561,
                  7573,
                  7577,
                  7583,
                  7589,
                  7591,
                  7603,
                  7607,
                  7621,
                  7639,
                  7643,
                  7649,
                  7669,
                  7673,
                  7681,
                  7687,
                  7691,
                  7699,
                  7703,
                  7717,
                  7723,
                  7727,
                  7741,
                  7753,
                  7757,
                  7759,
                  7789,
                  7793,
                  7817,
                  7823,
                  7829,
                  7841,
                  7853,
                  7867,
                  7873,
                  7877,
                  7879,
                  7883,
                  7901,
                  7907,
                  7919,
                  7927,
                  7933,
                  7937,
                  7949,
                  7951,
                  7963,
                  7993,
                  8009,
                  8011,
                  8017,
                  8039,
                  8053,
                  8059,
                  8069,
                  8081,
                  8087,
                  8089,
                  8093,
                  8101,
                  8111,
                  8117,
                  8123,
                  8147,
                  8161,
                  8167,
                  8171,
                  8179,
                  8191,
                  8209,
                  8219,
                  8221,
                  8231,
                  8233,
                  8237,
                  8243,
                  8263,
                  8269,
                  8273,
                  8287,
                  8291,
                  8293,
                  8297,
                  8311,
                  8317,
                  8329,
                  8353,
                  8363,
                  8369,
                  8377,
                  8387,
                  8389,
                  8419,
                  8423,
                  8429,
                  8431,
                  8443,
                  8447,
                  8461,
                  8467,
                  8501,
                  8513,
                  8521,
                  8527,
                  8537,
                  8539,
                  8543,
                  8563,
                  8573,
                  8581,
                  8597,
                  8599,
                  8609,
                  8623,
                  8627,
                  8629,
                  8641,
                  8647,
                  8663,
                  8669,
                  8677,
                  8681,
                  8689,
                  8693,
                  8699,
                  8707,
                  8713,
                  8719,
                  8731,
                  8737,
                  8741,
                  8747,
                  8753,
                  8761,
                  8779,
                  8783,
                  8803,
                  8807,
                  8819,
                  8821,
                  8831,
                  8837,
                  8839,
                  8849,
                  8861,
                  8863,
                  8867,
                  8887,
                  8893,
                  8923,
                  8929,
                  8933,
                  8941,
                  8951,
                  8963,
                  8969,
                  8971,
                  8999,
                  9001,
                  9007,
                  9011,
                  9013,
                  9029,
                  9041,
                  9043,
                  9049,
                  9059,
                  9067,
                  9091,
                  9103,
                  9109,
                  9127,
                  9133,
                  9137,
                  9151,
                  9157,
                  9161,
                  9173,
                  9181,
                  9187,
                  9199,
                  9203,
                  9209,
                  9221,
                  9227,
                  9239,
                  9241,
                  9257,
                  9277,
                  9281,
                  9283,
                  9293,
                  9311,
                  9319,
                  9323,
                  9337,
                  9341,
                  9343,
                  9349,
                  9371,
                  9377,
                  9391,
                  9397,
                  9403,
                  9413,
                  9419,
                  9421,
                  9431,
                  9433,
                  9437,
                  9439,
                  9461,
                  9463,
                  9467,
                  9473,
                  9479,
                  9491,
                  9497,
                  9511,
                  9521,
                  9533,
                  9539,
                  9547,
                  9551,
                  9587,
                  9601,
                  9613,
                  9619,
                  9623,
                  9629,
                  9631,
                  9643,
                  9649,
                  9661,
                  9677,
                  9679,
                  9689,
                  9697,
                  9719,
                  9721,
                  9733,
                  9739,
                  9743,
                  9749,
                  9767,
                  9769,
                  9781,
                  9787,
                  9791,
                  9803,
                  9811,
                  9817,
                  9829,
                  9833,
                  9839,
                  9851,
                  9857,
                  9859,
                  9871,
                  9883,
                  9887,
                  9901,
                  9907,
                  9923,
                  9929,
                  9931,
                  9941,
                  9949,
                  9967,
                  9973
};

bool Judge(int n) {
    if (n < 2) {
        return false;
    }
    int temp = sqrt(n);
    for (int i = 2; i <= temp; i++) {
        if (n % i == 0) {
            return false;
        }
    }
    return true;
}

void Init(int n) {
    for (int i = 2; i < n; i++) {
        if (Judge(i) == true) {
            prime[count++] = i;
        }
    }
}

int main() {
    int n;
    cin >> n;
    if (n < 11) {
        printf("-1");
    } else {
        printf("11");
        for (int i = 5; i < 1229; i++) {
            if (ans[i] >= n) {
                break;
            }
            if (ans[i] % 10 == 1) {
                printf(" %d", ans[i]);
            }
        }
    }

    return 0;
}