Submission

Score: 30

User: faofao

Problemset: เลขหลักของผลคูณ

Language: c

Time: 0.002 second

Submitted On: 2025-10-11 13:30:12

#include <stdio.h>
#include <string.h>
#include <math.h>

int main(){
    int a,b;
    int x;
    scanf("%d %d %d" ,&a,&b,&x);
    long long sum = a*b ;

    char num[999];
    sprintf(num , "%LLd" , sum);

    if(x > strlen(num)){
        printf("_");
    }
    else{
        printf("%d" ,num[x-1]-'0');
    }

    return 0;
}