#include <bits/stdc++.h> #include "hack.h" #define int long long using namespace std; #define pb push_back #define pf push_front #define mp make_pair #define fi first #define se second #define all(x) (x).begin(), (x).end() typedef long double ld; typedef long long ll; typedef pair<ll,ll> pll; typedef pair<int,int> pii; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<bool> vb; typedef vector<vector<int>> vvi; typedef vector<vector<bool>> vvb; typedef vector<vector<ll>> vvll; typedef vector<string> vs; typedef vector<vector<string>> vvs; typedef vector<char> vc; typedef vector<vector<char>> vvc; typedef map<int, int> mii; typedef unordered_map<int, int> umii; const int mod = 1e9 + 7; const int inf = INTMAX_MAX; signed hack(){ int ans; for (int i = 2; i <= 1e6; i++) { int x = collisions({1, i}); if (x > 0) { return i - 1; } } }

hack.cpp: In function 'int hack()':
hack.cpp:41:1: warning: control reaches end of non-void function [-Wreturn-type]
   41 | }
      | ^