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Submission #674885

# Submission time Handle Problem Language Result Execution time Memory
674885 2022-12-26T12:47:53 Z QwertyPi Lightning Rod (NOI18_lightningrod) C++14
14 / 100
 1434 ms 188172 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 1e7 + 11;
int p[N][2], pi = 0;
int main(){
	cin.tie(0); cout.tie(0)->sync_with_stdio(false);
	int n; cin >> n;
	for(int i = 0; i < n; i++){
		int x, y; cin >> x >> y;
		while(pi > 0 && abs(p[pi - 1][0] - x) <= y - p[pi - 1][1]) pi--;
		if(abs(p[pi - 1][0] - x) <= p[pi - 1][1] - y) continue;
		p[pi][0] = x, p[pi][1] = y; pi++;
	}
	cout << pi << endl;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1303 ms 160624 KB Output is correct
2 Correct 1319 ms 188172 KB Output is correct
3 Correct 1290 ms 183048 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Incorrect 1 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Incorrect 1 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Incorrect 1 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Incorrect 1 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1422 ms 122596 KB Output is correct
2 Correct 1434 ms 137384 KB Output is correct
3 Correct 1432 ms 132220 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1303 ms 160624 KB Output is correct
2 Correct 1319 ms 188172 KB Output is correct
3 Correct 1290 ms 183048 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 328 KB Output is correct
7 Incorrect 1 ms 212 KB Output isn't correct
8 Halted 0 ms 0 KB -