Cod sursa(job #325466)
Utilizator | Nitu Doru Constantin doru.nitu | Data | 20 iunie 2009 16:46:16 |
---|---|---|---|
Problema | Litere | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.44 kb |
#include<stdio.h>
#include<string.h>
int frecv[125],i,nr,k;
char j;
char a[10001];
int main()
{
freopen("litere.in","r",stdin);
freopen("litere.out","w",stdout);
scanf("%d\n",&k);
scanf("%s",a);
for(i=0;i<k;i++) { for(j=97;j<=122;j++) if(frecv[j]&&a[i]<j) nr+=frecv[j];
frecv[a[i]]++;
}
printf("%d\n",nr);
fclose(stdin);
fclose(stdout);
return 0;
}