Cod sursa(job #744991)

Utilizator MagnvsDaniel Constantin Anghel Magnvs Data 10 mai 2012 12:54:20
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.31 kb
Raporteaza aceasta sursa 
#include <stdio.h>

int v[27],n,c,i,j,s;

int main()
{
    freopen("litere.in","r",stdin);
    freopen("litere.out","w",stdout);
    scanf("%d\n",&n);
    for (i=1;i<=n;++i)
    {
        c=(int)fgetc(stdin)-(int)'a'+1;
        for (j=c+1;j<27;++j) s+=v[j];
        ++v[c];
    }
    printf("%d",s);
    return 0;
}