Submission

Score: 100

User: Nitro_Legacy

Problemset: เลขหลักของผลคูณ

Language: c

Time: 0.003 second

Submitted On: 2026-09-24 21:48:02

#include <stdio.h>
int main(){
    int a, b, x;
    scanf("%d %d %d", &a, &b, &x);
    int prod = a * b;
    int temp = prod;
    int cnt = 0;
    while (temp > 0){
        temp /= 10;
        cnt++;
    }
    if (x < 1 || x > cnt){
        printf("_");
        return 0;
    } else {
        for (int i = 1; i <= cnt - x; i++) {
        prod /= 10;
        }
    }
    printf("%d", prod % 10);
    return 0;
}