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Submission #217038

# Submission time Handle Problem Language Result Execution time Memory
217038 2020-03-28T18:15:46 Z sevlll Strange Device (APIO19_strange_device) C++17
35 / 100
 807 ms 49784 KB 
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <ctime>
#include <cassert>
#include <complex>
#include <string>
#include <cstring>
#include <chrono>
#include <random>
#include <queue>
#include <bitset>

#define pb push_back
#define int long long
#define str string
using namespace std;
const int M = 1e9 + 7;

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, a, b;
    cin >> n >> a >> b;
    vector<pair<int, int>> pr(n);
    for (int i = 0; i < n; i++) cin >> pr[i].first >> pr[i].second;
    int g = gcd(a, b + 1);
    a /= g;
    int num = a * b;
    vector<pair<int, int>> ev;
    for (auto p : pr) {
        int l = p.first, r = p.second;
        if (r - l >= num - 1) {
            cout << num;
            return 0;
        }
        l %= num;
        r %= num;
        if (r < l) {
            ev.pb({l, 1});
            ev.pb({num, -1});
            ev.pb({0, 1});
            ev.pb({r + 1, -1});
        } else {
            ev.pb({l, 1});
            ev.pb({r + 1, -1});
        }
    }
    sort(ev.begin(), ev.end());
    int bal = 0;
    int last = 0;
    int ans = 0;
    for (auto p : ev) {
        int x = p.first;
        int type = p.second;
        if (bal) {
            ans += (x - last);
        }
        last = x;
        bal += type;
    }
    cout << ans;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 11 ms 1408 KB Output is correct
3 Correct 11 ms 1408 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 11 ms 1408 KB Output is correct
17 Correct 81 ms 7020 KB Output is correct
18 Incorrect 5 ms 384 KB Output isn't correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Incorrect 4 ms 384 KB Output isn't correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 442 ms 49604 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 657 ms 49696 KB Output is correct
3 Correct 669 ms 49620 KB Output is correct
4 Correct 643 ms 49620 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 657 ms 49696 KB Output is correct
3 Correct 669 ms 49620 KB Output is correct
4 Correct 643 ms 49620 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 662 ms 49604 KB Output is correct
7 Correct 655 ms 49760 KB Output is correct
8 Correct 659 ms 49628 KB Output is correct
9 Correct 807 ms 49620 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 657 ms 49696 KB Output is correct
3 Correct 669 ms 49620 KB Output is correct
4 Correct 643 ms 49620 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 66 ms 6764 KB Output is correct
7 Correct 78 ms 6764 KB Output is correct
8 Correct 71 ms 6892 KB Output is correct
9 Correct 73 ms 6892 KB Output is correct
10 Correct 69 ms 6896 KB Output is correct
11 Correct 69 ms 6768 KB Output is correct
12 Correct 67 ms 6764 KB Output is correct
13 Correct 76 ms 6852 KB Output is correct
14 Correct 74 ms 6896 KB Output is correct
15 Correct 76 ms 6892 KB Output is correct
16 Correct 74 ms 6764 KB Output is correct
17 Correct 75 ms 6892 KB Output is correct
18 Correct 686 ms 49620 KB Output is correct
19 Correct 636 ms 49620 KB Output is correct
20 Correct 782 ms 49632 KB Output is correct
21 Correct 76 ms 6764 KB Output is correct
22 Correct 60 ms 6764 KB Output is correct
23 Correct 190 ms 22884 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 77 ms 6764 KB Output is correct
3 Correct 72 ms 6764 KB Output is correct
4 Correct 805 ms 49492 KB Output is correct
5 Correct 77 ms 6764 KB Output is correct
6 Correct 73 ms 6764 KB Output is correct
7 Correct 73 ms 6764 KB Output is correct
8 Correct 76 ms 6764 KB Output is correct
9 Correct 73 ms 6764 KB Output is correct
10 Correct 75 ms 6764 KB Output is correct
11 Correct 71 ms 6764 KB Output is correct
12 Correct 64 ms 6764 KB Output is correct
13 Correct 76 ms 6764 KB Output is correct
14 Correct 745 ms 49620 KB Output is correct
15 Correct 76 ms 6764 KB Output is correct
16 Correct 607 ms 49632 KB Output is correct
17 Correct 652 ms 49784 KB Output is correct
18 Incorrect 5 ms 384 KB Output isn't correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 11 ms 1408 KB Output is correct
3 Correct 11 ms 1408 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 11 ms 1408 KB Output is correct
17 Correct 81 ms 7020 KB Output is correct
18 Incorrect 5 ms 384 KB Output isn't correct