Cod sursa(job #2080165)

Utilizator marcudanfDaniel Marcu marcudanf Data 2 decembrie 2017 15:23:22
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.27 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;

ifstream fin("litere.in");
ofstream fout("litere.out");

char c[10005];
int dp[30],s;

int main(){
	fin>>c;
	fin>>c;
	for(int i=0;c[i];i++){
		dp[c[i]-'a']++;
		for(int j=c[i]-'a'+1;j<='z'-'a';j++)
			s+=dp[j];
	}
	fout<<s;
	return 0;
}