Submission

Score: 20

User: Ballmaii

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-09 01:01:00

#include <iostream>
#include <string>
using namespace std;
int main()
{
    string w;
    int sum=0;
    char a[30];
    cin>>w;
    int n,l;
    l = 1;
    n = w.size();
    //cout<<n<<endl;
    for(int i=0;i<n;i++)
    {
        for(int j=l;j<n;j++)
        {
            if(w[i]==w[j])
            {
                sum = sum+1;
                //cout<<sum<<endl;
            }
        }
        l = l+1;
        if(sum==0)
        {
            cout<<w[i];
            return 0;
        }
        sum = 0;
    }
}