제출 #1285729

#제출 시각아이디문제언어결과실행 시간메모리
1285729SmuggingSpunHack (APIO25_hack)C++20
25 / 100
136 ms1320 KiB
#include "hack.h" #include<bits/stdc++.h> using namespace std; typedef long long ll; const int LIM = 1e9; int hack(){ int low = 1, high = LIM - 1, ans = 1; while(low <= high){ int mid = (low + high) >> 1, sqr = sqrt(mid); vector<ll>p; for(int i = 1; i < sqr; i++){ p.push_back(i); } for(int i = 1; sqr * i <= mid; i++){ p.push_back(sqr * i); } p.push_back(mid + 1); if(collisions(p) == 0){ low = ans = mid + 1; } else{ high = mid - 1; } } return ans; }
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