Cod sursa(job #2387622)

Utilizator divianegoescuDivia Negoescu divianegoescu Data 24 martie 2019 22:15:38
Problema Litere Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.31 kb
Raporteaza aceasta sursa 
#include <fstream>
#include <algorithm>
using namespace std;
ifstream fin("litere.in");
ofstream fout("litere.out");
int f[200],n,i,s;
char c;
int main()
{
    fin>>n;
    for(;n--;){
        fin>>c;
        for(i=c+1;i<='z';i++)
            s+=f[i];
        f[c]++;
    }
    fout<<s;
    return 0;
}