Submission #127259

#	Time	Username	Problem	Language	Result	Execution time	Memory
127259		nhimnam120	Art Exhibition (JOI18_art)	C++14	100 / 100	269 ms	8880 KiB

art

#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
vector<pair<long long, long long> > inp;
long long sum1=-1e18;
long long sum2=-1e18;
signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	long long n;
	cin >> n;
	for(int i=1;i<=n;i++){
		long long a,b;
		cin >> a >> b;
		inp.push_back({a,b});
	}
	sort(inp.begin(),inp.end());
	long long SUM=0;
	for(int i=0;i<inp.size();i++){
		sum1 = max(sum1, inp[i].fi-SUM);
		SUM+=inp[i].se;
		sum2 = max(sum2, SUM - inp[i].fi + sum1);
	}
	cout << sum2;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:20:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<inp.size();i++){
              ~^~~~~~~~~~~

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