#include <iostream>
#include <vector>
using namespace std;
 
bool contains(int i_find, std::vector<int> list)
{
  return list.empty() ? false : (*list.begin() == i_find ? true : contains(i_find, {list.begin()+1, list.end()}));
}
 
int main() {
	printf("contains 0: %i\n", contains(0, {1,2,3,4}) ? 1 : 0);
	printf("contains 1: %i\n", contains(1, {1,2,3,4}) ? 1 : 0);
	printf("contains 2: %i\n", contains(2, {1,2,3,4}) ? 1 : 0);
	printf("contains 3: %i\n", contains(3, {1,2,3,4}) ? 1 : 0);
	printf("contains 4: %i\n", contains(4, {1,2,3,4}) ? 1 : 0);
	printf("contains 5: %i\n", contains(5, {1,2,3,4}) ? 1 : 0);
	// your code goes here
	return 0;
}

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