3052번, 나머지

#include <stdio.h>
int main(){
    int arr[10], t_arr[10], temp, t_i = 0, num = 0;
    for (int i = 0; i < 10; i++){
        scanf("%d", &arr[i]);
        arr[i] %= 42;
    }
    for (int i = 0; i < 10; i++){
        temp = 1;
        for (int k = 0; k < i; k++){
            if (arr[i] == t_arr[k]){
                temp = 0;
                break;
            }
        }
        if (temp){
            t_arr[t_i] = arr[i];
            num++;
            t_i++;
        }
    }
    printf("%d", num);
}