제출 #1271645

#제출 시각아이디문제언어결과실행 시간메모리
1271645david_g611Art Exhibition (JOI18_art)C++20
100 / 100
412 ms19764 KiB
#include <bits/stdc++.h> #define int long long using namespace std; const int NMAX=5e5, INF=1e9*1ll*1e9; int sz[NMAX+1], val[NMAX+1], sp[NMAX+1]; struct obiect { int s, v; const bool operator < (const obiect &o) const{ return s<o.s; } }o[NMAX+1]; signed main() { int n; cin>>n; for(int i=1; i<=n; i++) cin>>o[i].s>>o[i].v; sort(o+1, o+n+1); for(int i=1; i<=n; i++) { sz[i]=o[i].s; val[i]=o[i].v; sp[i]=sp[i-1]+val[i]; } int best=-INF; int ans=0; for(int i=1; i<=n; i++) { best=max(best, sz[i]-sp[i-1]); ans=max(ans, sp[i]-sz[i]+best); } cout<<ans; return 0; }
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