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Submission #667992

# Submission time Handle Problem Language Result Execution time Memory
667992 2022-12-02T13:50:22 Z bashkort Lightning Rod (NOI18_lightningrod) C++17
100 / 100
 1582 ms 76200 KB 
#include <bits/stdc++.h>

using namespace std;

constexpr int N = 100000000;

int stk1[N], stk2[N], top = 0;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n;
    for (int i = 0; i < n; ++i) {
        int x, y;
        cin >> x >> y;

        while (top > 0 && stk1[top - 1] >= x - y) {
            --top;
        }

        if (top == 0 || stk2[top - 1] < x + y) {
            stk1[top] = x - y, stk2[top] = x + y;
            top += 1;
        }
    }

    cout << top << '\n';

    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1307 ms 76200 KB Output is correct
2 Correct 1276 ms 75956 KB Output is correct
3 Correct 1366 ms 73932 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 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 0 ms 212 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 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 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 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 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 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 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 37 ms 224 KB Output is correct
15 Correct 36 ms 340 KB Output is correct
16 Correct 31 ms 980 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1414 ms 49100 KB Output is correct
2 Correct 1339 ms 49064 KB Output is correct
3 Correct 1385 ms 47904 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1307 ms 76200 KB Output is correct
2 Correct 1276 ms 75956 KB Output is correct
3 Correct 1366 ms 73932 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 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 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 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 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 37 ms 224 KB Output is correct
18 Correct 36 ms 340 KB Output is correct
19 Correct 31 ms 980 KB Output is correct
20 Correct 1414 ms 49100 KB Output is correct
21 Correct 1339 ms 49064 KB Output is correct
22 Correct 1385 ms 47904 KB Output is correct
23 Correct 1582 ms 580 KB Output is correct
24 Correct 1568 ms 588 KB Output is correct
25 Correct 1486 ms 3220 KB Output is correct