제출 #684767

#제출 시각아이디문제언어결과실행 시간메모리
684767US3RN4M3Self Study (JOI22_ho_t2)C++17
0 / 100
763 ms4992 KiB
#include<bits/stdc++.h> using namespace std; using ll = long long; ll n, m; vector<ll> A; vector<ll> B; bool test(ll goal) { ll avail = 0; for(ll i = 0; i < n; i++) { ll used = (goal - 1)/max(A[i], B[i]) + 1; if(used <= m) avail += m - used; } for(ll i = 0; i < n; i++) { ll used = (goal - 1)/max(A[i], B[i]) + 1; if(used <= m) continue; ll left = goal - max(A[i], B[i])*m; ll req = (left - 1)/B[i] + 1; avail -= req; } return (avail >= 0); } main() { cin >> n >> m; A.resize(n); B.resize(n); for(ll & i : A) cin >> i; for(ll & i : B) cin >> i; ll ans = 0; for(ll delta = (1ll<<60); delta >= 1; delta >>= 1) { if(test(ans + delta)) ans += delta; } cout << ans << endl; }

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp:22:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   22 | main() {
      | ^~~~
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