#include "sphinx.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 255;
int n, m;
vector <int> e[N], tmp;
vector <int> find_colours(int N, vector <int> X, vector <int> Y) {
	n = N; m = X.size(); vector <int> C(n);
	for (int i = 0; i < m; i++) {
		e[X[i]].push_back(Y[i]);
		e[Y[i]].push_back(X[i]);
	}
	for (int i = 0; i < n; i++) tmp.push_back(-1);
	int all = perform_experiment(tmp);
	for (int i = 0; i < n; i++)
		for (int j = 0; j < n; j++) {
			tmp[i] = j;
			int p = perform_experiment(tmp);
			if (p == all) {
				C[i] = j;
				break;
			}
		}
	return C;
}

implementer.cpp: In function ‘int {anonymous}::sz(const C&)’:
implementer.cpp:26:52: error: ‘size’ is not a member of ‘std’; did you mean ‘size_t’?
   26 | template<class C> int sz(const C& c) { return std::size(c); }
      |                                                    ^~~~
      |                                                    size_t