Cod sursa(job #1736878)
Utilizator | Data | 2 august 2016 20:36:59 | |
---|---|---|---|
Problema | Litere | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.32 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("litere.in");
ofstream fout("litere.out");
int n,f[300],rez;
char c;
int main()
{
fin>>n;
for(int i=1; i<=n; i++)
{
fin>>c;
for(int j=c+1; j<='z'; j++)
rez += f[j];
f[c]++;
}
fout<<rez;
}