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Submission #217019

# Submission time Handle Problem Language Result Execution time Memory
217019 2020-03-28T17:53:37 Z sevlll Strange Device (APIO19_strange_device) C++17
35 / 100
 958 ms 81988 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;
    vector<pair<__int128_t, int>> ev;
    for (auto p : pr) {
        int l = p.first, r = p.second;
        if (r-l+1 >= num) {cout << (int) 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;
    __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 11 ms 1660 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 6 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 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 4 ms 384 KB Output is correct
16 Correct 11 ms 1660 KB Output is correct
17 Correct 86 ms 10304 KB Output is correct
18 Incorrect 4 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 5 ms 384 KB Output is correct
3 Correct 4 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 512 KB Output is correct
3 Correct 5 ms 512 KB Output is correct
4 Correct 5 ms 640 KB Output is correct
5 Correct 506 ms 81792 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 732 ms 81792 KB Output is correct
3 Correct 773 ms 81824 KB Output is correct
4 Correct 739 ms 81988 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 732 ms 81792 KB Output is correct
3 Correct 773 ms 81824 KB Output is correct
4 Correct 739 ms 81988 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 742 ms 81824 KB Output is correct
7 Correct 723 ms 81760 KB Output is correct
8 Correct 754 ms 81872 KB Output is correct
9 Correct 889 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 732 ms 81792 KB Output is correct
3 Correct 773 ms 81824 KB Output is correct
4 Correct 739 ms 81988 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 70 ms 10216 KB Output is correct
7 Correct 76 ms 10216 KB Output is correct
8 Correct 72 ms 10268 KB Output is correct
9 Correct 74 ms 10216 KB Output is correct
10 Correct 79 ms 10344 KB Output is correct
11 Correct 74 ms 10216 KB Output is correct
12 Correct 71 ms 10216 KB Output is correct
13 Correct 81 ms 10216 KB Output is correct
14 Correct 72 ms 10216 KB Output is correct
15 Correct 85 ms 10216 KB Output is correct
16 Correct 82 ms 10304 KB Output is correct
17 Correct 72 ms 10216 KB Output is correct
18 Correct 739 ms 81824 KB Output is correct
19 Correct 716 ms 81824 KB Output is correct
20 Correct 941 ms 81824 KB Output is correct
21 Correct 84 ms 10216 KB Output is correct
22 Correct 70 ms 10216 KB Output is correct
23 Correct 220 ms 38620 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 90 ms 10344 KB Output is correct
3 Correct 80 ms 10348 KB Output is correct
4 Correct 958 ms 81760 KB Output is correct
5 Correct 80 ms 10216 KB Output is correct
6 Correct 80 ms 10216 KB Output is correct
7 Correct 81 ms 10216 KB Output is correct
8 Correct 84 ms 10216 KB Output is correct
9 Correct 82 ms 10344 KB Output is correct
10 Correct 86 ms 10268 KB Output is correct
11 Correct 85 ms 10216 KB Output is correct
12 Correct 72 ms 10220 KB Output is correct
13 Correct 98 ms 10344 KB Output is correct
14 Correct 919 ms 81824 KB Output is correct
15 Correct 84 ms 10344 KB Output is correct
16 Correct 705 ms 81756 KB Output is correct
17 Correct 732 ms 81788 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 4 ms 384 KB Output is correct
2 Correct 11 ms 1660 KB Output is correct
3 Correct 11 ms 1660 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 6 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 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 4 ms 384 KB Output is correct
16 Correct 11 ms 1660 KB Output is correct
17 Correct 86 ms 10304 KB Output is correct
18 Incorrect 4 ms 384 KB Output isn't correct