10494-2.cpp

#include <bits/stdc++.h>
using namespace std;

long long div(char a[], long long n, char c[]) {
    int i, j, t = 0, l, d = 0, r = 0;
    long long rem = 0;
    l = strlen(a);
    for (i = 0; i < l; i++) {
        rem = (rem * 10) + a[i] - 48;

        if (rem >= n || r != 0) {
            j = rem / n;
            rem = rem % n;
            c[d] = j + 48;
            d++;
            r = 1;
        }
    }
    if (d == 0) {
        c[d] = '0';
        d++;
    }
    c[d] = '\0';
    return rem;
}

int main() {
    long long n;
    char a[100000], c[100000];
    char ch;
    while (scanf("%s %c %lld", &a, &ch, &n) != EOF) {
        if (ch == '%') {
            n = div(a, n, c);
            printf("%lld\n", n);
        } else if (ch == '/') {
            div(a, n, c);
            printf("%s\n", c);
        }
    }
    return 0;
}