Submission #418410

#	Time	Username	Problem	Language	Result	Execution time	Memory
418410		_Avocado_	Art Exhibition (JOI18_art)	C++14	0 / 100	1 ms	204 KiB

art

    #include <bits/stdc++.h>
    #include <iostream>
    using namespace std;
    #define int int64_t
     
    signed main(){
    	ios_base::sync_with_stdio(false);
    	cin.tie(NULL);
    	int n; cin>>n;
    	
    	vector<pair<int, int>>v;
    	
    	for(int i = 0; i<n; ++i){
    		int a, b; cin>>a>>b;
    		v.push_back({a, b});
    	}
    	
    	sort(v.begin(), v.end());
    	
    	vector<int>prefix(n);
    	
    	prefix[0] = v[0].second;
    	
    	for(int i = 1; i<n; ++i) prefix[i] = prefix[i-1] + v[i].second;
     
    	int ans = -1e18;
    	
    	for(int i = 1; i<n; ++i){
    		int cur = prefix[i] - (v[i].first - v[0].first);
    		ans = max(ans, cur);
    	}
    	
    	if(ans < 0){
			for(int i = 0; i<n; ++i) ans = max(v[i].second, ans);
		}
		else{
    	
			for(int i = 1; i<n-1; ++i){
				int diff = (v[i].first - v[0].first) - prefix[i-1];
				if(diff > 0) ans += diff;
			}
		}
    	
    	cout<<ans;
    	
    	
    	cout<<'\n';
    }

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50