Submission #1228732

#TimeUsernameProblemLanguageResultExecution timeMemory
1228732khoinguArt Exhibition (JOI18_art)C++20
0 / 100
0 ms320 KiB
#include <bits/stdc++.h> #define ll long long #define int long long #define fi(i,a,b) for(int i = a; i <= b; i ++) #define fi first #define se second using namespace std; const long long maxN = 5e5 + 5, INF = 1e17; int n; vector <pair<int, int>> a; signed main() { if (fopen("task.inp", "r")) { freopen("task.inp", "r", stdin); freopen("task.out", "w", stdout); } ios_base::sync_with_stdio(false); cin.tie(0); cin >> n; for(int i = 1; i <= n; i ++) { int x, y; cin >> x >> y; a.push_back({x, y}); } sort(a.rbegin(), a.rend()); int res = -INF; for(int i = 0; i < n; i ++) { int tmp = a[i].se; for(int j = i + 1; j < n; j ++) { tmp += a[j].se; res = max(res, tmp - a[i].fi + a[j].fi); } } cout << res; }

Compilation message (stderr)

art.cpp:5: warning: "fi" redefined
    5 | #define fi   first
      | 
art.cpp:4: note: this is the location of the previous definition
    4 | #define fi(i,a,b) for(int i = a; i <= b; i ++)
      | 
art.cpp: In function 'int main()':
art.cpp:15:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         freopen("task.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:16:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         freopen("task.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
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