Function fib

tools/spt-generator/examples/c/fib.c:4–9

#include <stdlib.h>
#include <assert.h>
int fib(int n){
  if(n==0 || n==1){
    return n;
  }
  return fib(n-1)+fib(n-2);
}

int main(int argc, char **argv){
  assert(argc==2);