제출 #1284120

#제출 시각아이디문제언어결과실행 시간메모리
1284120hoangnoobproArt Exhibition (JOI18_art)C++20
100 / 100
205 ms23880 KiB
#include<bits/stdc++.h> using namespace std; #define mod 1000000007 #define nmax 1000007 #define fi first #define se second #define ll long long ll t=1,n,m,i,j,d=0,x=0,k=0,y,z,f[nmax],b[nmax],h[nmax],h1[nmax]; pair<ll,ll>a[nmax]; int main() { ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); cin>>n; for(i=1;i<=n;++i) { cin>>a[i].fi>>a[i].se; } sort(a+1,a+n+1); for(i=1;i<=n;++i) { f[i]=f[i-1]+a[i].se; } j=1; d=0; for(i=1;i<n;++i) { b[i]=a[i+1].fi-a[i].fi-a[i].se; h[i]=h[i-1]+b[i]; h1[i]=max(h1[i-1],h[i]); } for(i=1;i<=n;++i) { d=max(d,f[i]-a[i].fi+a[1].fi+h1[i-1]); } cout<<d; }
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