oj.uz

Submission #743078

# Submission time Handle Problem Language Result Execution time Memory
743078 2023-05-17T07:46:01 Z Joo Lightning Rod (NOI18_lightningrod) C++17
80 / 100
 2000 ms 124724 KB 
#include <bits/stdc++.h>
using namespace std;

const int MXN = 1e7 + 10;

int x[MXN], y[MXN];

int main()
{
    cin.tie(0)->sync_with_stdio(0);
    int n;
    cin >> n;
    stack<int> st;
    for (int i = 1; i <= n; i++)
    {
        cin >> x[i] >> y[i];
        while (!st.empty() and (abs(x[i] - x[st.top()]) <= y[i] - y[st.top()]))
            st.pop();
        if (st.empty() or !(abs(x[st.top()] - x[i]) <= y[st.top()] - y[i]))
            st.push(i);
    }
    cout << st.size() << "\n";
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1598 ms 124552 KB Output is correct
2 Correct 1589 ms 124724 KB Output is correct
3 Correct 1560 ms 122432 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 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 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 40 ms 5296 KB Output is correct
15 Correct 43 ms 5180 KB Output is correct
16 Correct 52 ms 4780 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1511 ms 113124 KB Output is correct
2 Correct 1810 ms 114204 KB Output is correct
3 Correct 1765 ms 111664 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1598 ms 124552 KB Output is correct
2 Correct 1589 ms 124724 KB Output is correct
3 Correct 1560 ms 122432 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 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 212 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 40 ms 5296 KB Output is correct
18 Correct 43 ms 5180 KB Output is correct
19 Correct 52 ms 4780 KB Output is correct
20 Correct 1511 ms 113124 KB Output is correct
21 Correct 1810 ms 114204 KB Output is correct
22 Correct 1765 ms 111664 KB Output is correct
23 Execution timed out 2012 ms 82516 KB Time limit exceeded
24 Halted 0 ms 0 KB -