Cod sursa(job #154341)

Utilizator ZozelZozo Zozo Zozel Data 11 martie 2008 09:42:32
Problema Factorial Scor 15
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include<stdio.h>

int main(){
unsigned long p,max,optim,verify;
FILE *fin=fopen("fact.in","r");
FILE *fout=fopen("fact.out","w");
fscanf(fin,"%lu",&p);

max=p*5;
optim=max/25;
verify=25*optim;
max-=optim*5;

if(verify>max) fprintf(fout,"%d",-1);
else fprintf(fout,"%lu",max);
fclose(fin);
fclose(fout);
return 0;
}