Submission #1120928

#	Time	Username	Problem	Language	Result	Execution time	Memory
1120928		Tsagana	Divide and conquer (IZhO14_divide)	C++14	17 / 100	1 ms	508 KiB

divide

#include<bits/stdc++.h>

#define IOS ios_base::sync_with_stdio(false);cin.tie();cout.tie();
#define all(x) x.begin(), x.end()
#define int long long
#define pq priority_queue
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
#define pb push_back
#define pp pop_back
#define F first
#define S second

using namespace std;

int g[100001];
int e[100001];
vector<int> v;

void solve () {
	int n; cin >> n;
	for (int i = 0; i < n; i++) {
		int x; cin >> x >> g[i] >> e[i]; v.pb(x);
	}
	
	int ans = 0;
	for (int i = 0; i < n; i++) {
		int c = e[i]-1;
		int val = g[i];
		int l = i, r = i+1;

		while (r < n) {
			if (v[r] - v[l] > c + e[r]) break ;
			c += e[r] - (v[r] - v[l]);
			val += g[r];
			l = r; r = l + 1;
		}
		if (i && r == n) {
			l = i-1;
			r = i;

			while (l) {
				if (v[r] - v[l] > c + e[l]) break ;
				c += e[l] - (v[r] - v[l]);
				val += g[l];
				r = l; l = r - 1;
			}
		}
		ans = max(ans, val);
	}
	cout << ans;
}
signed main() {IOS solve(); return 0;}

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