Submission #1228850

#TimeUsernameProblemLanguageResultExecution timeMemory
1228850Tony_TungArt Exhibition (JOI18_art)C++17
0 / 100
0 ms320 KiB
#include <bits/stdc++.h> #define task "" #define ll long long #define fi first #define se second using namespace std; const int N = 5e5 + 5; pair<ll, ll> p[N]; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); if (fopen(task".inp", "r")) { freopen(task".inp", "r", stdin); freopen(task".out", "w", stdout); } int n; cin >> n; for (int i = 1; i <= n; i++) cin >> p[i].fi >> p[i].se; sort(p+1, p+n+1); ll res = 0, mi = LLONG_MAX; for (int i = 1; i <= n; i++) { p[i].se += p[i-1].se; if (i >= 2) res = max(res, p[i].se - p[i].fi - mi); else res = max(res, p[i].se); mi = min(mi, p[i-1].se - p[i].fi); } cout << res; return 0; }

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
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".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
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