题解 | 比较字符串大小

#include <iostream>
using namespace std;

int mystrcmp(const char* src, const char* dst);

int main() {

    char s1[100] = { 0 };
    char s2[100] = { 0 };

    cin.getline(s1, sizeof(s1));
    cin.getline(s2, sizeof(s2));

    int ret = mystrcmp(s1, s2);

    cout << ret << endl;

    return 0;
}

int mystrcmp(const char* src, const char* dst) {

    // write your code here......
    int len1 = 0, len2 = 0, sum1 = 0, sum2 = 0;
    // 计算s1字符串的长度
    while(*src != '\0'){
        sum1 += *src;
        len1++;
        src++;
    }
    // 计算s2字符串的长度
    while(*dst != '\0'){
        sum2 += *dst;
        len2++;
        dst++;
    }
    if (len1 > len2) {
        return 1;
    }else if (len1 < len2){
        return -1;
    }else {
        if (sum1 > sum2) {
            return 1;
        }else if (sum1 < sum2) {
            return -1;
        }else {
            return 0;
        }
    }

}