Submission #418280

#	Time	Username	Problem	Language	Result	Execution time	Memory
418280		tgehr	Art Exhibition (JOI18_art)	C++14	100 / 100	218 ms	24644 KiB

art

// -*- compile-command: "g++ -g -Wno-return-type -Wall -Wextra -DLOCAL -std=c++17 -D_GLIBCXX_DEBUG art.cpp -oart && ./art " -*-
#include <bits/stdc++.h>
using namespace std;
using LL=long long;
#define int LL
#define vc vector
#define pb push_back
#define pr pair
#define fi first
#define se second
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(),(v).end()
#define f(i,n) for(int i=0;i<(n);i++)
#define fv(i,v) f(i,sz(v))

struct S{ int a,b; };

main(){
	ios::sync_with_stdio(0),cin.tie(0);
	int n;
	cin>>n;
	vc<S> art(n);
	f(i,n) cin>>art[i].a>>art[i].b;
	sort(all(art),[](S x,S y){ return x.a>y.a; });
	vc<int> p(n+1);
	f(i,n) p[i+1]=p[i]+art[i].b;
	int best=0;
	int low=art[0].a;
	f(i,n+1){
		if(i) best=max(best,p[i]+art[i-1].a-low);
		if(i<n) low=min(low,p[i]+art[i].a);
	}
	cout<<best<<'\n';
}

Compilation message (stderr)

art.cpp:18:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   18 | main(){
      | ^~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50