Cod sursa(job #901638)
Utilizator | Data | 1 martie 2013 11:02:19 | |
---|---|---|---|
Problema | Al k-lea termen Fibonacci | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.3 kb |
#include<stdio.h>
#include<math.h>
FILE *in,*out;
int n;
int main(void)
{
in=fopen("kfib.in","rt");
out=fopen("kfib.out","wt");
fscanf(in,"%d",&n);
int c=(1/sqrt(5))*(pow(((1+sqrt(5))/2),n)-pow(((1-sqrt(5))/2),n));
fprintf(out,"%d",c);
fclose(in);
fclose(out);
return 0;
}