Submission

Score: 50

User: ratitum091102

Problemset: เลขหลักของผลคูณ

Language: c

Time: 0.002 second

Submitted On: 2025-09-23 12:10:27

#include <stdio.h>
int main(){
    int a;
    int b;
    int c;
    scanf("%d",&a);
    scanf("%d",&b);
    scanf("%d",&c);
    int d[100];
    d[1] = a*b%10;
    d[2] = a*b%100/10;
    d[3] = a*b%1000/100;
    d[4] = a*b%10000/1000;
    d[5] = a*b%100000/10000;
    d[6] = a*b%1000000/100000;
    d[7] = a*b%10000000/1000000;
    d[8] = a*b%100000000/10000000;
    d[9] = a*b%1000000000/100000000;
    d[10] = a*b%10000000000/1000000000;
    d[11] = a*b%100000000000/10000000000;
    d[12] = a*b%1000000000000/100000000000;
    if(d[c]!=0){
        printf("%d",d[c]);
    }
    else{
        printf("_");
    }
}