f(n)=f(n-1)+f(n-2)
#include <stdlib.h>
#include <stdio.h>
int climbStairs(int n)
{
int p = 0,q = 0,r = 1;
for (int i = 1; i <= n; i++)
{
p = q;
q = r;
r = p + q;
printf(" %d ",r);
}
return r;
}
int main(int *argc,char *argv[])
{
climbStairs(6);
}