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Submission #217024

# Submission time Handle Problem Language Result Execution time Memory
217024 2020-03-28T18:02:08 Z sevlll Strange Device (APIO19_strange_device) C++17
35 / 100
 952 ms 81968 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;
    __int128_t num = a * b;
    if (n == 1) {
        int l = pr[0].first, r = pr[0].second;
        if (r - l >= num - 1) {
            cout << (int) num;
        } else {
            if (l == r) {
                cout << 1;
            } else {
                l %= num;
                r %= num;
                if (l < r) {
                    cout << r - l + 1;
                } else {
                    cout << r + (int) num - l;
                }
            }
        }
        return 0;
    }
    vector<pair<__int128_t, int>> ev;
    for (auto p : pr) {
        int l = p.first, r = p.second;
        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;
    __int128_t last = 0;
    int ans = 0;
    for (auto p : ev) {
        __int128_t 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 4 ms 384 KB Output is correct
2 Correct 11 ms 1660 KB Output is correct
3 Correct 12 ms 1788 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 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 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 11 ms 1660 KB Output is correct
17 Correct 86 ms 10216 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 4 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 4 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 4 ms 384 KB Output is correct
2 Correct 5 ms 512 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 494 ms 81856 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 743 ms 81820 KB Output is correct
3 Correct 788 ms 81824 KB Output is correct
4 Correct 728 ms 81828 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 743 ms 81820 KB Output is correct
3 Correct 788 ms 81824 KB Output is correct
4 Correct 728 ms 81828 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 760 ms 81752 KB Output is correct
7 Correct 748 ms 81872 KB Output is correct
8 Correct 759 ms 81856 KB Output is correct
9 Correct 901 ms 81824 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 743 ms 81820 KB Output is correct
3 Correct 788 ms 81824 KB Output is correct
4 Correct 728 ms 81828 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 71 ms 10216 KB Output is correct
7 Correct 75 ms 10216 KB Output is correct
8 Correct 76 ms 10216 KB Output is correct
9 Correct 88 ms 10420 KB Output is correct
10 Correct 73 ms 10216 KB Output is correct
11 Correct 75 ms 10216 KB Output is correct
12 Correct 71 ms 10216 KB Output is correct
13 Correct 79 ms 10200 KB Output is correct
14 Correct 71 ms 10216 KB Output is correct
15 Correct 84 ms 10344 KB Output is correct
16 Correct 81 ms 10344 KB Output is correct
17 Correct 74 ms 10216 KB Output is correct
18 Correct 767 ms 81856 KB Output is correct
19 Correct 716 ms 81860 KB Output is correct
20 Correct 936 ms 81824 KB Output is correct
21 Correct 84 ms 10344 KB Output is correct
22 Correct 67 ms 10216 KB Output is correct
23 Correct 215 ms 38740 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 79 ms 10216 KB Output is correct
3 Correct 82 ms 10348 KB Output is correct
4 Correct 952 ms 81968 KB Output is correct
5 Correct 80 ms 10216 KB Output is correct
6 Correct 87 ms 10344 KB Output is correct
7 Correct 90 ms 10344 KB Output is correct
8 Correct 85 ms 10216 KB Output is correct
9 Correct 79 ms 10216 KB Output is correct
10 Correct 86 ms 10216 KB Output is correct
11 Correct 81 ms 10216 KB Output is correct
12 Correct 77 ms 10216 KB Output is correct
13 Correct 87 ms 10344 KB Output is correct
14 Correct 915 ms 81824 KB Output is correct
15 Correct 86 ms 10216 KB Output is correct
16 Correct 710 ms 81952 KB Output is correct
17 Correct 743 ms 81824 KB Output is correct
18 Incorrect 4 ms 384 KB Output isn't correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 11 ms 1660 KB Output is correct
3 Correct 12 ms 1788 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 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 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 11 ms 1660 KB Output is correct
17 Correct 86 ms 10216 KB Output is correct
18 Incorrect 5 ms 384 KB Output isn't correct