题解 | #简单密码#

#include <stdio.h>
#include <string.h>

#define MAX 102

void transform(char *c){
    if((*c >= 65) && (*c < 90)){
        *c = (*c) + 33;
    }
    else if(*c == 90)
        *c = 97;   
}

void transform_char_num(char *c){
    if((*c >= 97) && (*c <= 122)){
            if((*c >= 97) && (*c<= 99))
                 *c = '2'; 
            else if((*c >= 100) && (*c<= 102))
                 *c = '3'; 
            else if((*c >= 103) && (*c<= 105))
                 *c = '4';
            else if((*c >= 106) && (*c<= 108))
                 *c = '5';
            else if((*c >= 109) && (*c<= 111))
                 *c = '6';
            else if((*c >= 112) && (*c<= 115))
                 *c = '7'; 
            else if((*c >= 116) && (*c<= 118))
                 *c = '8';
            else if((*c >= 119) && (*c<= 122))
                 *c = '9';
    }
}

int main(){

    char arr[MAX] = {0};
    fgets(arr, sizeof(arr), stdin);
    arr[strlen(arr)] = '\0';
    int len = strlen(arr);

    for(int i = 0; i < len; i++){
        transform_char_num(&arr[i]);
        transform(&arr[i]);
        printf("%c", arr[i]);
    }

    //printf("%.*s", len, arr);

    return 0;
}