Submission #741996

# Submission time Handle Problem Language Result Execution time Memory
741996 2023-05-15T10:12:37 Z TheOpChicken Divide and conquer (IZhO14_divide) C++17
100 / 100
123 ms 7976 KB
#include <iostream>
using namespace std;

const long long maxN = 1e5 + 5, inf = 1e18;
pair<int, pair<int, int> > arr[maxN];
long long sg[4*maxN], pref_diff[maxN], pref_gold[maxN];

void build(int idx, int nl, int nr){
	if (nl == nr){
		sg[idx] = pref_diff[nl];
		return;
	}

	int mid = (nl + nr)/2;
	build(2*idx, nl, mid);
	build(2*idx+1, mid+1, nr);
	sg[idx] = max(sg[2*idx], sg[2*idx+1]);
}

int query(int idx, int nl, int nr, int need){
	if (nl == nr) return nl;
	int mid = (nl + nr)/2;
	if (sg[2*idx+1] >= need) return query(2*idx+1, mid+1, nr, need);
	return query(2*idx, nl, mid, need);
}
int main(){
	int n;
	cin >> n;
	for (int i = 0; i < n; i++) cin >> arr[i].first >> arr[i].second.first >> arr[i].second.second;

	pref_diff[0] = arr[0].second.second;
	for (int i = 1; i < n; i++) pref_diff[i] = pref_diff[i-1] + arr[i].second.second - (arr[i].first - arr[i-1].first);
	pref_gold[0] = arr[0].second.first;
	for (int i = 1; i < n; i++) pref_gold[i] = pref_gold[i-1] + arr[i].second.first;

	build(1, 0, n-1);
	long long mx = pref_gold[query(1, 0, n-1, 0)];

	for (int i = 1; i < n; i++){
		long long cur = pref_gold[query(1, 0, n-1, pref_diff[i]-arr[i].second.second)] - pref_gold[i-1];
		mx = max(cur, mx);
	}

	cout << mx << endl;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 5 ms 680 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 312 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 316 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 5 ms 680 KB Output is correct
24 Correct 5 ms 596 KB Output is correct
25 Correct 4 ms 636 KB Output is correct
26 Correct 6 ms 956 KB Output is correct
27 Correct 8 ms 980 KB Output is correct
28 Correct 44 ms 3660 KB Output is correct
29 Correct 54 ms 3992 KB Output is correct
30 Correct 123 ms 7976 KB Output is correct
31 Correct 100 ms 6796 KB Output is correct
32 Correct 82 ms 6844 KB Output is correct
33 Correct 75 ms 6716 KB Output is correct
34 Correct 76 ms 6628 KB Output is correct
35 Correct 96 ms 7180 KB Output is correct
36 Correct 104 ms 7324 KB Output is correct