Cod sursa(job #1975666)

Utilizator GeorginskyGeorge Georginsky Data 1 mai 2017 16:57:40
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.3 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
ifstream in("litere.in");
ofstream out("litere.out");
int n, ans, v[26];
int main(){
	in>>n;
	char c;
	for(int i=1; i<=n; i++){
		in>>c, v[int(c-'a')]++;
		for(int j=int(c-'a')+1; j<26; j++)ans+=v[j];
	}
	out<<ans;
    return 0;
}