Submission #1205567

#TimeUsernameProblemLanguageResultExecution timeMemory
1205567gs14004Hack (APIO25_hack)C++20
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; using lint = long long; using pi = array<lint, 2>; #define sz(v) ((int)(v).size()) #define all(v) (v).begin(), (v).end() #define cr(v, n) (v).clear(), (v).resize(n); int hack() { int s = (int)5e8 + 1, e = (int)1e9; while (s != e) { int m = (s + e) / 2; vector<lint> vect; int sq = (int)sqrt(m - s + 1); for (int i = 1; i <= sq; i++) vect.push_back(i); for (int i = s + sq; i <= m; i += sq) vect.push_back(i); vect.push_back(m + 1); if (collisions(vect)) e = m; else s = m + 1; } for (int i = 2; i * i <= s; i++) { while (s % i == 0 && collisions(vector<lint>({1, s / i + 1}))) s /= i; } return s; }

Compilation message (stderr)

hack.cpp: In function 'int hack()':
hack.cpp:20:21: error: 'collisions' was not declared in this scope
   20 |                 if (collisions(vect))
      |                     ^~~~~~~~~~
hack.cpp:26:38: error: 'collisions' was not declared in this scope
   26 |                 while (s % i == 0 && collisions(vector<lint>({1, s / i + 1})))
      |                                      ^~~~~~~~~~