functions level1 nancy,simon,swathi #include <stdio.h> void getFibonacii(int a,int b,int n) { int c; if(n>0) { c=a+b; a=b; b=c; printf("%d ",c); getFibonacii(a,b,n-1); } } int main() { int a=0,b=1,n; scanf("%d",&n); printf("%d %d ",0,1); getFibonacii(a,b,n-2); return 0; } Simon wants a number plate #include <stdio.h> #include<math.h> int isPerfectSquare(long long x){ int s=(int)sqrt(x); return(s*s ==x); } int isFibonacci(int x){ return isPerfectSquare(5*x*x+4)||isPerfectSquare(5*x*x-4); } int main() {int n; scanf("%d",&n); if(isFibonacci(n)){ printf("YES"); } else printf("NO"); ...