제출 #1108574

#제출 시각아이디문제언어결과실행 시간메모리
1108574vjudge1Art Exhibition (JOI18_art)C++17
0 / 100
1 ms336 KiB
#include <bits/stdc++.h> using namespace std; long n,i; long long t,r; long long s[500001],f[500002]; pair<long long,long> a[500001]; int main() { ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL); // freopen("CodeForces.inp","r",stdin); // freopen("CodeForces.out","w",stdout); cin>>n; for(i=1;i<=n;i++) cin>>a[i].first>>a[i].second; sort(a+1,a+n+1); for(i=1;i<=n;i++) s[i]=s[i-1]+a[i].second; for(i=n;i>0;i--) f[i]=max(f[i+1],s[i]-a[i].first); for(i=1;i<=n;i++) { r=max(r,f[i]-t+a[i].first); t+=a[i].second; } cout<<r; }
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