Submission

Score: 100

User: mnmpyuuu

Problemset: เลขหลักของผลคูณ

Language: c

Time: 0.002 second

Submitted On: 2025-10-11 00:48:01

#include<stdio.h>

int main()
{
    int a,b,x;
//    printf("A = ");
    scanf("%d",&a);
//    printf("B = ");
    scanf("%d",&b);
//    printf("x = ");
    scanf("%d",&x);
    long long ab=a*b;
    int ans[100000];
    int i=0;
    while(ab!=0)
    {
        ans[i]=ab%10;
        ab=ab/10;
        i++;
    }
    if(i-x<0)
    {
        printf("_");
        return 0;
    }
    printf("%d",ans[i-x]);
}