제출 #566625

#제출 시각아이디문제언어결과실행 시간메모리
566625ac2huPalembang Bridges (APIO15_bridge)C++14
0 / 100
2072 ms340 KiB
#include <bits/stdc++.h> #ifdef DEBUG #include "../templates/debug.h" #else #define deb(x...) #endif using namespace std; #define int long long signed main() { iostream::sync_with_stdio(false); cin.tie(nullptr);cout.tie(nullptr); int n,k;cin >> k >> n; vector<pair<int,int>> loc; int same_part = 0; int mx = 0; for(int i = 0;i<n;i++){ char c1, c2; int a,b; cin >> c1 >> a >> c2 >> b; if(c1 == c2){ same_part += abs(a - b); } else{ mx = max(mx, max(a, b)); same_part++; if(a > b)swap(a, b); loc.emplace_back(a, b); } } deb(loc); multiset<pair<int,int>> aset, bset; for(auto e : loc)aset.insert(e); int ans = 1e18; int sump1 = 0; int sump2 = 0; int sump3 = 0; int inp2 = 0; for(auto e : aset)sump1 += e.first + e.second; set<pair<int,int>> extra; for(int i = 0;i<=mx;i++){ while(aset.size() > 0){ auto it = *aset.begin(); if(i >= it.first){ bset.insert({it.second, it.first}); aset.erase(aset.begin()); sump1 -= it.first + it.second; sump3 += abs(it.first - it.second); } else break; } while(bset.size() > 0){ auto it = *bset.begin(); if(i >= it.first){ bset.erase(bset.begin()); extra.insert(it); sump2 += it.first + it.second; sump3 -= abs(it.first - it.second); inp2++; } else break; } deb(aset, bset, extra); int p1 = sump1 - 2*i*aset.size(); int p2 = inp2*2*i - sump2; deb(same_part, p1, p2, sump3); ans = min(ans, same_part + (sump1 - 2*i*(int)aset.size()) + (inp2*2*i - sump2) + sump3); } cout << ans << "\n"; }

컴파일 시 표준 에러 (stderr) 메시지

bridge.cpp: In function 'int main()':
bridge.cpp:64:13: warning: unused variable 'p1' [-Wunused-variable]
   64 |         int p1 = sump1 - 2*i*aset.size();
      |             ^~
bridge.cpp:65:13: warning: unused variable 'p2' [-Wunused-variable]
   65 |         int p2 = inp2*2*i - sump2;
      |             ^~
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