Cod sursa(job #579536)

Utilizator maritimCristian Lambru maritim Data 12 aprilie 2011 11:11:56
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include<stdio.h>

char S[10000];
int A[256];

int N;
int nr = 0;

int main()
{
	FILE *f = fopen("litere.in","r");
	FILE *g = fopen("litere.out","w");
	
	fscanf(f,"%d %s",&N,S);
	for(int i=0;i<N;i++)
	{
		A[S[i]] ++;
		for(int j=S[i]+1;j<='z';j++)
			nr += A[j];
	}
	
	fprintf(g,"%d",nr);
	
	fclose(g);
	fclose(f);
}