Cod sursa(job #3281355)

Utilizator Hutanu_MaiaHutanu Ioana-Maia Hutanu_Maia Data 1 martie 2025 10:58:25
Problema Litere Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>
using namespace std;
ifstream fin("litere.in");
ofstream fout("litere.out");
int n,nr,fr[33];
char x;
int main()
{
    fin>>n;
    for(int i=1; i<=n; i++)
    {
        fin>>x;
        for(int j=(int)x-'a'+1; j<='z'-'a'; j++)
            nr+=fr[j];
        fr[(int)x-'a']++;
    }
    fout<<nr;
    return 0;
}