Submission #681603

#	Time	Username	Problem	Language	Result	Execution time	Memory
681603		iskhakkutbilim	Divide and conquer (IZhO14_divide)	C++14	48 / 100	1067 ms	3148 KiB

divide

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define ff first
#define ss second
#define all(a) a.begin(), a.end()



main(){
   ios::sync_with_stdio(0);
   cin.tie(0); cout.tie(0);
//   ifstream cin("divide.in");
//   ofstream cout("divide.out");
	int n; cin >> n;
	int x[n], g[n], d[n];
	for(int i = 0;i < n; i++){
		cin >> x[i] >> g[i] >> d[i];
	}
	int gold[n], energy[n]; gold[0] = g[0], energy[0] = d[0];
	for(int i = 1;i < n; i++){
		gold[i] = gold[i-1] + g[i];
		energy[i] = energy[i-1]+d[i];
	}
	int answer = 0;
	for(int i = 0;i < n; i++){
		for(int j = n-1; j >= i; j--){
			int s_g = gold[j] - (i > 0 ? gold[i-1] : 0);
			int s_e = energy[j] - (i > 0 ? energy[i-1] : 0);
			if(s_e >= x[j]-x[i]){
				answer = max(answer, s_g);
			}
		}
	}
	cout << answer;
	return 0;
}

Compilation message (stderr)

divide.cpp:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main(){
      | ^~~~

• Subtask 1: 17 / 17
• Subtask 2: 31 / 31
• Subtask 3: 0 / 52