Cod sursa(job #115681)

Utilizator cristiprgPrigoana Cristian cristiprg Data 16 decembrie 2007 20:09:26
Problema Nunta Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.26 kb
Raporteaza aceasta sursa 
#include<stdio.h>
#include<math.h>

int main(){
    FILE *in;
    in = fopen("nunta.in","r");
    FILE *out;
    out = fopen("nunta.out","w");
    
    int n;
    fscanf(in,"%d",&n);
    fprintf(out,"%ld",(long long)pow(2,n-1)-1);
    
    return 0;
}