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Submission #130302

# Submission time Handle Problem Language Result Execution time Memory
130302 2019-07-14T17:55:51 Z osaaateiasavtnl Strange Device (APIO19_strange_device) C++14
100 / 100
 998 ms 51464 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main() {
    #ifdef HOME
    freopen("input.txt", "r", stdin);
    #else
    ios_base::sync_with_stdio(0); cin.tie(0);
    #endif
    int n, A, B;
    cin >> n >> A >> B;
    int D = A / __gcd(A, B + 1);
    int M = B * D;
    vector <pair <int, int> > a;
    while (n--) {
        int l, r;
        cin >> l >> r;

        if (l / M == r / M) {
            a.push_back({l % M, r % M});
            continue;
        }   

        int l1 = ((l + M - 1) / M) * M;
        int r1 = (r / M) * M - 1;
 
        int c = 0;
        if (l1 <= r1) {
            cout << M << '\n';
            exit(0);
        }   
 
        // [l % B; B - 1]
        // [0; r % B]
 
        int tl = r % M, tr = l % M;
        
        if (tl < tr) {
            a.push_back({0, tl});
            a.push_back({tr, M - 1});
        }   
        else {
            cout << M << '\n';
            exit(0);
        }   
    }   
    int ans = 0;
    vector <pair <int, int> > sc;
    for (auto e : a) {
        sc.push_back({e.first, 1});
        sc.push_back({e.second + 1, -1});
    }   
    sort(sc.begin(), sc.end());
    int b = 0;
    for (int i = 0; i + 1 < (int)sc.size(); ++i) {
        b += sc[i].second;
        if (b) ans += sc[i + 1].first - sc[i].first;            
    }   
    cout << ans << '\n';
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:27:13: warning: unused variable 'c' [-Wunused-variable]
         int c = 0;
             ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 10 ms 1268 KB Output is correct
3 Correct 10 ms 1268 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 252 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 10 ms 1300 KB Output is correct
17 Correct 88 ms 6244 KB Output is correct
18 Correct 2 ms 256 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 424 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 560 ms 51464 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 774 ms 49944 KB Output is correct
3 Correct 840 ms 50000 KB Output is correct
4 Correct 788 ms 49864 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 774 ms 49944 KB Output is correct
3 Correct 840 ms 50000 KB Output is correct
4 Correct 788 ms 49864 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 799 ms 49796 KB Output is correct
7 Correct 771 ms 50008 KB Output is correct
8 Correct 787 ms 50012 KB Output is correct
9 Correct 885 ms 49860 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 774 ms 49944 KB Output is correct
3 Correct 840 ms 50000 KB Output is correct
4 Correct 788 ms 49864 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 76 ms 9828 KB Output is correct
7 Correct 80 ms 9828 KB Output is correct
8 Correct 78 ms 9828 KB Output is correct
9 Correct 81 ms 9956 KB Output is correct
10 Correct 76 ms 9836 KB Output is correct
11 Correct 80 ms 9828 KB Output is correct
12 Correct 77 ms 9856 KB Output is correct
13 Correct 82 ms 9828 KB Output is correct
14 Correct 79 ms 9800 KB Output is correct
15 Correct 89 ms 9288 KB Output is correct
16 Correct 88 ms 9172 KB Output is correct
17 Correct 80 ms 9324 KB Output is correct
18 Correct 815 ms 49936 KB Output is correct
19 Correct 766 ms 49880 KB Output is correct
20 Correct 913 ms 49840 KB Output is correct
21 Correct 89 ms 9712 KB Output is correct
22 Correct 72 ms 9804 KB Output is correct
23 Correct 237 ms 28148 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 86 ms 9500 KB Output is correct
3 Correct 91 ms 9448 KB Output is correct
4 Correct 998 ms 49964 KB Output is correct
5 Correct 85 ms 9576 KB Output is correct
6 Correct 86 ms 9544 KB Output is correct
7 Correct 85 ms 9656 KB Output is correct
8 Correct 88 ms 9828 KB Output is correct
9 Correct 83 ms 9900 KB Output is correct
10 Correct 90 ms 9604 KB Output is correct
11 Correct 86 ms 9316 KB Output is correct
12 Correct 79 ms 9280 KB Output is correct
13 Correct 89 ms 9320 KB Output is correct
14 Correct 900 ms 50028 KB Output is correct
15 Correct 90 ms 8844 KB Output is correct
16 Correct 751 ms 49940 KB Output is correct
17 Correct 789 ms 50052 KB Output is correct
18 Correct 2 ms 252 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 10 ms 1268 KB Output is correct
3 Correct 10 ms 1268 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 252 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 10 ms 1300 KB Output is correct
17 Correct 88 ms 6244 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 424 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 504 KB Output is correct
28 Correct 560 ms 51464 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 774 ms 49944 KB Output is correct
31 Correct 840 ms 50000 KB Output is correct
32 Correct 788 ms 49864 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 799 ms 49796 KB Output is correct
35 Correct 771 ms 50008 KB Output is correct
36 Correct 787 ms 50012 KB Output is correct
37 Correct 885 ms 49860 KB Output is correct
38 Correct 2 ms 380 KB Output is correct
39 Correct 76 ms 9828 KB Output is correct
40 Correct 80 ms 9828 KB Output is correct
41 Correct 78 ms 9828 KB Output is correct
42 Correct 81 ms 9956 KB Output is correct
43 Correct 76 ms 9836 KB Output is correct
44 Correct 80 ms 9828 KB Output is correct
45 Correct 77 ms 9856 KB Output is correct
46 Correct 82 ms 9828 KB Output is correct
47 Correct 79 ms 9800 KB Output is correct
48 Correct 89 ms 9288 KB Output is correct
49 Correct 88 ms 9172 KB Output is correct
50 Correct 80 ms 9324 KB Output is correct
51 Correct 815 ms 49936 KB Output is correct
52 Correct 766 ms 49880 KB Output is correct
53 Correct 913 ms 49840 KB Output is correct
54 Correct 89 ms 9712 KB Output is correct
55 Correct 72 ms 9804 KB Output is correct
56 Correct 237 ms 28148 KB Output is correct
57 Correct 2 ms 256 KB Output is correct
58 Correct 86 ms 9500 KB Output is correct
59 Correct 91 ms 9448 KB Output is correct
60 Correct 998 ms 49964 KB Output is correct
61 Correct 85 ms 9576 KB Output is correct
62 Correct 86 ms 9544 KB Output is correct
63 Correct 85 ms 9656 KB Output is correct
64 Correct 88 ms 9828 KB Output is correct
65 Correct 83 ms 9900 KB Output is correct
66 Correct 90 ms 9604 KB Output is correct
67 Correct 86 ms 9316 KB Output is correct
68 Correct 79 ms 9280 KB Output is correct
69 Correct 89 ms 9320 KB Output is correct
70 Correct 900 ms 50028 KB Output is correct
71 Correct 90 ms 8844 KB Output is correct
72 Correct 751 ms 49940 KB Output is correct
73 Correct 789 ms 50052 KB Output is correct
74 Correct 2 ms 252 KB Output is correct
75 Correct 2 ms 464 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 3 ms 376 KB Output is correct
79 Correct 9 ms 1504 KB Output is correct
80 Correct 994 ms 50068 KB Output is correct
81 Correct 988 ms 49964 KB Output is correct
82 Correct 883 ms 49900 KB Output is correct
83 Correct 880 ms 49944 KB Output is correct
84 Correct 891 ms 49928 KB Output is correct
85 Correct 878 ms 50016 KB Output is correct
86 Correct 233 ms 27588 KB Output is correct
87 Correct 2 ms 376 KB Output is correct