Submission #344542

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
344542	2021-01-06T05:31:03 Z	maskoff	Divide and conquer (IZhO14_divide)	C++14	48 / 100	1000 ms	2796 KB

divide

#include <bits/stdc++.h>
 
#define file ""
 
#define all(x) x.begin(), x.end()
 
#define sc second
#define fr first
 
#define pb push_back
#define mp make_pair
 
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pii;
 
const ll inf = 1e18 + 5;
const ll mod = 1e9 + 7;
 
const int N = 1e5 + 5;
 
int dx[] = {+1, 0, -1, 0};
int dy[] = {0, +1, 0, -1};

struct line {
 	int x;
 	int d;
 	int g;
};
vector<line> a(N);
ll dp[N];
     
int main() {  
	ios_base :: sync_with_stdio(false);               
	cin.tie(nullptr);
	srand(time(nullptr));
	int n;
	cin >> n;
	for (int i = 1; i <= n; i++) 
	 	cin >> a[i].x >> a[i].g >> a[i].d;

	for (int i = 1; i <= n; i++) {
		ll sum_d = 0;
		ll sum_g = 0;
		ll len;
	 	for (int j = i; j >= 1; j--) {
	 	 	sum_g += a[j].g;
	 	 	sum_d += a[j].d;
	 	 	len = a[i].x - a[j].x;
	 	 	if (sum_d >= len) { 
	 	 		//cerr << j << " " << i << endl;
	 	 		dp[i] = max(dp[i], sum_g);
	 	 	}
	 	}
	}
	cout << *max_element(dp + 1, dp + 1 + n);
  return 0;                   
}  

Subtask #1

17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1516 KB	Output is correct
2	Correct	1 ms	1536 KB	Output is correct
3	Correct	1 ms	1516 KB	Output is correct
4	Correct	1 ms	1516 KB	Output is correct
5	Correct	1 ms	1536 KB	Output is correct
6	Correct	1 ms	1516 KB	Output is correct
7	Correct	1 ms	1516 KB	Output is correct
8	Correct	1 ms	1516 KB	Output is correct
9	Correct	1 ms	1516 KB	Output is correct
10	Correct	1 ms	1516 KB	Output is correct
11	Correct	1 ms	1516 KB	Output is correct
12	Correct	1 ms	1516 KB	Output is correct

Subtask #2

31.0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1516 KB	Output is correct
2	Correct	1 ms	1536 KB	Output is correct
3	Correct	1 ms	1516 KB	Output is correct
4	Correct	1 ms	1516 KB	Output is correct
5	Correct	1 ms	1536 KB	Output is correct
6	Correct	1 ms	1516 KB	Output is correct
7	Correct	1 ms	1516 KB	Output is correct
8	Correct	1 ms	1516 KB	Output is correct
9	Correct	1 ms	1516 KB	Output is correct
10	Correct	1 ms	1516 KB	Output is correct
11	Correct	1 ms	1516 KB	Output is correct
12	Correct	1 ms	1516 KB	Output is correct
13	Correct	1 ms	1516 KB	Output is correct
14	Correct	1 ms	1516 KB	Output is correct
15	Correct	2 ms	1516 KB	Output is correct
16	Correct	2 ms	1536 KB	Output is correct
17	Correct	2 ms	1516 KB	Output is correct
18	Correct	5 ms	1516 KB	Output is correct
19	Correct	3 ms	1516 KB	Output is correct
20	Correct	4 ms	1516 KB	Output is correct
21	Correct	3 ms	1516 KB	Output is correct
22	Correct	4 ms	1516 KB	Output is correct
23	Correct	17 ms	1644 KB	Output is correct
24	Correct	17 ms	1644 KB	Output is correct

Subtask #3

0 / 52.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	1516 KB	Output is correct
2	Correct	1 ms	1536 KB	Output is correct
3	Correct	1 ms	1516 KB	Output is correct
4	Correct	1 ms	1516 KB	Output is correct
5	Correct	1 ms	1536 KB	Output is correct
6	Correct	1 ms	1516 KB	Output is correct
7	Correct	1 ms	1516 KB	Output is correct
8	Correct	1 ms	1516 KB	Output is correct
9	Correct	1 ms	1516 KB	Output is correct
10	Correct	1 ms	1516 KB	Output is correct
11	Correct	1 ms	1516 KB	Output is correct
12	Correct	1 ms	1516 KB	Output is correct
13	Correct	1 ms	1516 KB	Output is correct
14	Correct	1 ms	1516 KB	Output is correct
15	Correct	2 ms	1516 KB	Output is correct
16	Correct	2 ms	1536 KB	Output is correct
17	Correct	2 ms	1516 KB	Output is correct
18	Correct	5 ms	1516 KB	Output is correct
19	Correct	3 ms	1516 KB	Output is correct
20	Correct	4 ms	1516 KB	Output is correct
21	Correct	3 ms	1516 KB	Output is correct
22	Correct	4 ms	1516 KB	Output is correct
23	Correct	17 ms	1644 KB	Output is correct
24	Correct	17 ms	1644 KB	Output is correct
25	Correct	50 ms	1644 KB	Output is correct
26	Correct	193 ms	1644 KB	Output is correct
27	Correct	192 ms	1772 KB	Output is correct
28	Execution timed out	1086 ms	2796 KB	Time limit exceeded
29	Halted	0 ms	0 KB	-