Submission #1108361

#TimeUsernameProblemLanguageResultExecution timeMemory
1108361vjudge1Art Exhibition (JOI18_art)C++17
0 / 100
1 ms2384 KiB
#include<bits/stdc++.h> #define int long long using namespace std; const int N = 1e6 + 5; int n; pair<int, int> item[N]; int p[N]; int32_t main(){ ios_base::sync_with_stdio(0); cin.tie(0);cout.tie(0); #define Task "Flower" if(fopen(Task".inp","r")){ freopen(Task".inp","r",stdin); freopen(Task".out","w",stdout); } cin >> n; for(int i = 1; i <= n; i++){ cin >> item[i].first >> item[i].second; } sort(item + 1, item + n + 1); for(int i = 1; i <= n; i++){ p[i] = p[i - 1] + item[i].second; } int res = 0; priority_queue<int> pq; pq.push(0); for(int i = 1; i <= n; i++){ res = max(res, p[i] - item[i].first + pq.top()); pq.push(item[i].first - p[i - 1]); } cout << res; }

Compilation message (stderr)

art.cpp: In function 'int32_t main()':
art.cpp:18:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         freopen(Task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
art.cpp:19:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |         freopen(Task".out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
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