题解 | 字符串加解密

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

int main() {
    char MIN[1000] = {0};
    char MI[1000] = {0};
    char MIN_out[1000] = {0};
    char MI_out[1000] = {0};
    scanf("%s\n", MIN);
    scanf("%s\n", MI);
    // printf("%d\n", MIN[1]);
    for (int i = 0; i < strlen(MIN); i++) {
        MIN_out[i] = MIN[i];
        if ((MIN[i] >= 65) && (MIN[i] < 90)) {
            MIN_out[i] = MIN[i] + 33;
        }
        if ((MIN[i] == 90)) {
            MIN_out[i] = MIN[i] + 33 - 26;
        }
        if ((MIN[i] >= 97) && (MIN[i] < 122)) {
            MIN_out[i] = MIN[i] - 31;
        }

        if ((MIN[i] == 122)) {
            MIN_out[i] = MIN[i] - 31 - 26;
        }

        if ((MIN[i] >= 48) && (MIN[i] < 57)) {
            MIN_out[i] = MIN[i] + 1;
        }

        if ((MIN[i] == 57)) {
            MIN_out[i] = MIN[i] + 1 - 10;
        }
    }
    printf("%s\n", MIN_out);

    for (int i = 0; i < strlen(MI); i++) {
        MI_out[i] = MI[i];
        if ((MI[i] > 65) && (MI[i] <= 90)) {
            MI_out[i] = MI[i] + 31;
        }
        if ((MI[i] == 65)) {
            MI_out[i] = MI[i] + 31 + 26;
        }
        if ((MI[i] > 97) && (MI[i] <= 122)) {
            MI_out[i] = MI[i] - 33;
        }

        if ((MI[i] == 97)) {
            MI_out[i] = MI[i] - 33 + 26;
        }

        if ((MI[i] > 48) && (MI[i] <= 57)) {
            MI_out[i] = MI[i] - 1;
        }

        if ((MI[i] == 48)) {
            MI_out[i] = MI[i] - 1 + 10;
        }
    }
    printf("%s\n", MI_out);


}