Cod sursa(job #110787)
Utilizator | Data | 27 noiembrie 2007 19:44:57 | |
---|---|---|---|
Problema | Factorial | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.39 kb |
#include<stdio.h>
void main()
{
long double p,sol,cinci=25;
FILE *f=fopen("fact.in","r");
fscanf(f,"%lF",&p);
fclose(f);
if(p==0)
{
sol=0;
f=fopen("fact.out","w");
fprintf(f,"1");
fclose(f);
return;
}
sol=p*5;
int h=2;
for(cinci=25;cinci<=sol;cinci*=5,h++)
if(cinci<sol)
sol-=5*(h-1);
f=fopen("fact.out","w");
fprintf(f,"%.0lF\n",sol);
fclose(f);
}