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Submission #793634

# Submission time Handle Problem Language Result Execution time Memory
793634 2023-07-26T04:57:10 Z GEN 이지후(#10094) Triangle Collection (CCO23_day2problem3) C++17
10 / 25
 4000 ms 1252 KB 
#include <bits/stdc++.h>
using namespace std;
using lint = long long;
using pi = array<int, 2>;
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n, q;
	cin >> n >> q;
	vector<int> a(n);
	for (auto &x : a)
		cin >> x;
	auto solve = [&]() {
		lint deficiency = 0;
		lint runsum = 0;
		int ptr = n - 1;
		int oddcnt = 0;
		for (int x = n; x >= 1; x--) {
			runsum += a[x - 1] % 2;
			oddcnt += a[x - 1] % 2;
			while (ptr >= x / 2) {
				runsum -= a[ptr--] / 2;
			}
			deficiency = max(deficiency, runsum);
		}
		lint matching = oddcnt - deficiency;
		lint moksum = 0;
		for (int i = 1; i <= n; i++) {
			moksum += a[i - 1] / 2;
		}
		return matching + (2 * moksum - 2 * matching) / 3;
	};
	while (q--) {
		int i, d;
		cin >> i >> d;
		a[i - 1] += d;
		cout << solve() << "\n";
	}
}

Subtask #1
5.0 / 5.0

# 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 2 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 13 ms 328 KB Output is correct
7 Correct 13 ms 212 KB Output is correct
8 Correct 7 ms 212 KB Output is correct
9 Correct 13 ms 212 KB Output is correct
10 Correct 13 ms 332 KB Output is correct
11 Correct 13 ms 332 KB Output is correct
12 Correct 13 ms 332 KB Output is correct
13 Correct 13 ms 336 KB Output is correct
14 Correct 7 ms 320 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 2 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 13 ms 328 KB Output is correct
7 Correct 13 ms 212 KB Output is correct
8 Correct 7 ms 212 KB Output is correct
9 Correct 13 ms 212 KB Output is correct
10 Correct 13 ms 332 KB Output is correct
11 Correct 13 ms 332 KB Output is correct
12 Correct 13 ms 332 KB Output is correct
13 Correct 13 ms 336 KB Output is correct
14 Correct 7 ms 320 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 13 ms 340 KB Output is correct
18 Correct 14 ms 340 KB Output is correct
19 Correct 13 ms 344 KB Output is correct
20 Correct 13 ms 352 KB Output is correct
21 Correct 14 ms 328 KB Output is correct
22 Correct 14 ms 328 KB Output is correct
23 Correct 13 ms 332 KB Output is correct
24 Correct 13 ms 340 KB Output is correct
25 Correct 13 ms 332 KB Output is correct
26 Correct 14 ms 212 KB Output is correct
27 Correct 14 ms 328 KB Output is correct
28 Correct 0 ms 212 KB Output is correct

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 332 KB Output is correct
2 Correct 14 ms 212 KB Output is correct
3 Correct 38 ms 636 KB Output is correct
4 Execution timed out 4062 ms 1252 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 212 KB Output is correct
2 Correct 13 ms 344 KB Output is correct
3 Correct 14 ms 328 KB Output is correct
4 Correct 13 ms 332 KB Output is correct
5 Execution timed out 4046 ms 1252 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# 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 2 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 13 ms 328 KB Output is correct
7 Correct 13 ms 212 KB Output is correct
8 Correct 7 ms 212 KB Output is correct
9 Correct 13 ms 212 KB Output is correct
10 Correct 13 ms 332 KB Output is correct
11 Correct 13 ms 332 KB Output is correct
12 Correct 13 ms 332 KB Output is correct
13 Correct 13 ms 336 KB Output is correct
14 Correct 7 ms 320 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 13 ms 340 KB Output is correct
18 Correct 14 ms 340 KB Output is correct
19 Correct 13 ms 344 KB Output is correct
20 Correct 13 ms 352 KB Output is correct
21 Correct 14 ms 328 KB Output is correct
22 Correct 14 ms 328 KB Output is correct
23 Correct 13 ms 332 KB Output is correct
24 Correct 13 ms 340 KB Output is correct
25 Correct 13 ms 332 KB Output is correct
26 Correct 14 ms 212 KB Output is correct
27 Correct 14 ms 328 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 14 ms 332 KB Output is correct
30 Correct 14 ms 212 KB Output is correct
31 Correct 38 ms 636 KB Output is correct
32 Execution timed out 4062 ms 1252 KB Time limit exceeded
33 Halted 0 ms 0 KB -