题解 | #提取不重复的整数#

#include <stdio.h>

int main() {
    char string[5000];
    int intArray[5000] = {0};
    gets(string);
    int n = strlen(string);
    for (int i = n - 1; i >= 0; i--) {
        for (int j = i - 1; j >= 0; j--) {
            if (string[j] != 'q' && string[i] == string[j]) {
                string[j] = 'q';
            }
        }
        if (string[i] != 'q') printf("%c", string[i]);
    }
    return 0;
}