Submission

Score: 100

User: Ballmaii

Problemset: เลขหลักของผลคูณ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-09 00:35:51

#include <iostream>
using namespace std;
int main()
{
    long long int a,b,x,c,c1,p=0,m;
   // cout<<"A = ";
    cin>>a;
    //cout<<"B = ";
    cin>>b;
    //cout<<"x = ";
    cin>>x;
    c = a*b;
    c1 =c;
    for(int i=1;i<=999999;i++)
    {
        if(c>0)
        {
            c = c/10;
            p = p+1;
        }
    }
    if(x>p)
    {
        cout<<"_";
        return 0;
    }
    m = p-x;
    for(int j =1;j<=m;j++)
    {
        c1 = c1/10;
    }
    cout<<c1%10;
    
}