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Submission #172690

# Submission time Handle Problem Language Result Execution time Memory
172690 2020-01-02T11:40:08 Z tselmegkh Divide and conquer (IZhO14_divide) C++14
17 / 100
 221 ms 4496 KB 
#include<bits/stdc++.h>
using namespace std;
const int N = 1e5 + 5;

int x[N], g[N], d[N];
bool vis[N];
int main(){
	int n;
	cin >> n;
	for(int i = 1; i <= n; i++){
		cin >> x[i] >> g[i] >> d[i];	
	}
	long long curenergy = 0, curgold = 0, ans = 0;
	int r = 0;
	for(int i = 1; i <= n; i++){
		if(i > r){
			curenergy += d[i];
			curgold += g[i];
			r = i;
		}
		while(curenergy < x[r] - x[i]){
			curenergy -= d[r];
			curgold -= g[r];
			r--;
		}
		while(r + 1 <= n && curenergy + d[r + 1] >= x[r + 1] - x[i]){
			curenergy += d[r + 1];
			curgold += g[r + 1];
			r++;
		}
		ans = max(ans, curgold);
		curenergy -= d[i];
		curgold -= g[i];
	}
	cout << ans << '\n';
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 360 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 380 KB Output is correct
12 Correct 2 ms 504 KB Output is correct

Subtask #2
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 380 KB Output is correct
3 Incorrect 3 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 504 KB Output is correct
2 Correct 14 ms 632 KB Output is correct
3 Correct 17 ms 632 KB Output is correct
4 Correct 85 ms 1912 KB Output is correct
5 Correct 102 ms 2296 KB Output is correct
6 Correct 221 ms 4496 KB Output is correct
7 Correct 151 ms 3284 KB Output is correct
8 Correct 157 ms 3296 KB Output is correct
9 Correct 145 ms 3228 KB Output is correct
10 Incorrect 148 ms 3064 KB Output isn't correct
11 Halted 0 ms 0 KB -