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Submission #645383

# Submission time Handle Problem Language Result Execution time Memory
645383 2022-09-27T01:20:26 Z gun_gan Lasers (NOI19_lasers) C++17
41 / 100
 1000 ms 31784 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 5e5 + 5;
int l, r;
vector<int> s[N];

int main() {
	cin.tie(0); ios_base::sync_with_stdio(0);

	cin >> l >> r;
	for(int i = 0; i < r; i++) {
		int x; cin >> x;
		for(int j = 0; j < x; j++) {
			int p; cin >> p;
			if(s[i].empty()) s[i].push_back(p);
			else s[i].push_back(s[i].back() + p);
		}
	}
	int ans = l;
	for(int i = 1; i <= l; i++) {
		bool ok = 1;
		for(int j = 0; j < r; j++) {
			auto it = lower_bound(s[j].begin(), s[j].end(), i); 
			int x = (it == s[j].begin() ? 0 : *(--it));
			ok &= l - i >= s[j].back() - x;
		}
		ans -= ok;
	}
	cout << ans << '\n';
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1097 ms 11988 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1097 ms 11988 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 14804 KB Output is correct
2 Correct 52 ms 12592 KB Output is correct
3 Correct 52 ms 12888 KB Output is correct
4 Correct 80 ms 14312 KB Output is correct
5 Correct 57 ms 13516 KB Output is correct
6 Correct 96 ms 14920 KB Output is correct
7 Correct 26 ms 12140 KB Output is correct
8 Correct 100 ms 15968 KB Output is correct
9 Correct 60 ms 13260 KB Output is correct
10 Correct 82 ms 14892 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 11988 KB Output is correct
2 Correct 7 ms 11988 KB Output is correct
3 Correct 7 ms 12064 KB Output is correct
4 Correct 9 ms 11988 KB Output is correct
5 Correct 7 ms 12064 KB Output is correct
6 Correct 7 ms 11988 KB Output is correct
7 Correct 10 ms 12068 KB Output is correct
8 Correct 11 ms 12068 KB Output is correct
9 Correct 11 ms 11988 KB Output is correct
10 Correct 7 ms 12068 KB Output is correct

Subtask #5
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 14804 KB Output is correct
2 Correct 52 ms 12592 KB Output is correct
3 Correct 52 ms 12888 KB Output is correct
4 Correct 80 ms 14312 KB Output is correct
5 Correct 57 ms 13516 KB Output is correct
6 Correct 96 ms 14920 KB Output is correct
7 Correct 26 ms 12140 KB Output is correct
8 Correct 100 ms 15968 KB Output is correct
9 Correct 60 ms 13260 KB Output is correct
10 Correct 82 ms 14892 KB Output is correct
11 Correct 7 ms 11988 KB Output is correct
12 Correct 7 ms 11988 KB Output is correct
13 Correct 7 ms 12064 KB Output is correct
14 Correct 9 ms 11988 KB Output is correct
15 Correct 7 ms 12064 KB Output is correct
16 Correct 7 ms 11988 KB Output is correct
17 Correct 10 ms 12068 KB Output is correct
18 Correct 11 ms 12068 KB Output is correct
19 Correct 11 ms 11988 KB Output is correct
20 Correct 7 ms 12068 KB Output is correct
21 Execution timed out 1082 ms 31784 KB Time limit exceeded
22 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1097 ms 11988 KB Time limit exceeded
2 Halted 0 ms 0 KB -