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Submission #171602

# Submission time Handle Problem Language Result Execution time Memory
171602 2019-12-29T11:08:02 Z rama_pang Strange Device (APIO19_strange_device) C++14
100 / 100
 698 ms 31444 KB 
#include <bits/stdc++.h>
using namespace std;
using lint = long long;
const lint INF = 1e18 + 100;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);

    int n;
    lint A, B;
    cin >> n >> A >> B;

    lint g = __gcd(A, B + 1);
    lint t = 0;

    if ((A / g) > ((INF + INF) / B)) {
        t = INF;
    } else {
        t = (A / g) * B;
    }

    vector<pair<lint, lint>> interval;
    
    for (int i = 0; i < n; i++) {
        lint l, r;
        cin >> l >> r;
        
        if (r - l + 1 >= t) {
            interval.emplace_back(0, t - 1);
        } else {
            l %= t, r %= t;
            if (l <= r) {
                interval.emplace_back(l, r);
            } else {
                interval.emplace_back(l, t - 1);
                interval.emplace_back(0, r);
            }
        }
    }

    sort(begin(interval), end(interval));
    lint ans = 0;

    for (int i = 0; i < (int)interval.size(); i++) {
        lint l = interval[i].first;
        lint r = interval[i].second;
        int nxt = i;
        while (nxt + 1 < (int)interval.size() && interval[nxt + 1].first <= r) {
            r = max(r, interval[nxt + 1].second);
            nxt++;
        }
        ans += (r - l + 1);
        i = nxt;
    }

    cout << ans << "\n";
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 8 ms 888 KB Output is correct
3 Correct 8 ms 1016 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 8 ms 1060 KB Output is correct
17 Correct 67 ms 3056 KB Output is correct
18 Correct 2 ms 380 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 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 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 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 446 ms 17096 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 615 ms 17300 KB Output is correct
3 Correct 598 ms 16980 KB Output is correct
4 Correct 616 ms 17148 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 615 ms 17300 KB Output is correct
3 Correct 598 ms 16980 KB Output is correct
4 Correct 616 ms 17148 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 599 ms 17108 KB Output is correct
7 Correct 597 ms 17100 KB Output is correct
8 Correct 607 ms 17108 KB Output is correct
9 Correct 653 ms 17108 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 615 ms 17300 KB Output is correct
3 Correct 598 ms 16980 KB Output is correct
4 Correct 616 ms 17148 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 60 ms 2924 KB Output is correct
7 Correct 64 ms 2900 KB Output is correct
8 Correct 61 ms 2924 KB Output is correct
9 Correct 63 ms 2924 KB Output is correct
10 Correct 60 ms 2928 KB Output is correct
11 Correct 63 ms 2896 KB Output is correct
12 Correct 60 ms 2924 KB Output is correct
13 Correct 66 ms 2964 KB Output is correct
14 Correct 60 ms 2960 KB Output is correct
15 Correct 67 ms 2924 KB Output is correct
16 Correct 66 ms 2928 KB Output is correct
17 Correct 63 ms 3052 KB Output is correct
18 Correct 602 ms 16980 KB Output is correct
19 Correct 614 ms 17152 KB Output is correct
20 Correct 674 ms 17080 KB Output is correct
21 Correct 66 ms 2928 KB Output is correct
22 Correct 59 ms 2928 KB Output is correct
23 Correct 191 ms 9100 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 424 KB Output is correct
2 Correct 65 ms 2796 KB Output is correct
3 Correct 65 ms 2900 KB Output is correct
4 Correct 682 ms 17156 KB Output is correct
5 Correct 66 ms 2928 KB Output is correct
6 Correct 65 ms 2928 KB Output is correct
7 Correct 65 ms 2848 KB Output is correct
8 Correct 67 ms 2932 KB Output is correct
9 Correct 66 ms 3052 KB Output is correct
10 Correct 66 ms 2940 KB Output is correct
11 Correct 67 ms 3056 KB Output is correct
12 Correct 59 ms 2928 KB Output is correct
13 Correct 66 ms 2924 KB Output is correct
14 Correct 674 ms 16980 KB Output is correct
15 Correct 67 ms 2928 KB Output is correct
16 Correct 601 ms 16984 KB Output is correct
17 Correct 600 ms 17080 KB Output is correct
18 Correct 2 ms 376 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 8 ms 888 KB Output is correct
3 Correct 8 ms 1016 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 8 ms 1060 KB Output is correct
17 Correct 67 ms 3056 KB Output is correct
18 Correct 2 ms 380 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 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 376 KB Output is correct
28 Correct 446 ms 17096 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 615 ms 17300 KB Output is correct
31 Correct 598 ms 16980 KB Output is correct
32 Correct 616 ms 17148 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 599 ms 17108 KB Output is correct
35 Correct 597 ms 17100 KB Output is correct
36 Correct 607 ms 17108 KB Output is correct
37 Correct 653 ms 17108 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 60 ms 2924 KB Output is correct
40 Correct 64 ms 2900 KB Output is correct
41 Correct 61 ms 2924 KB Output is correct
42 Correct 63 ms 2924 KB Output is correct
43 Correct 60 ms 2928 KB Output is correct
44 Correct 63 ms 2896 KB Output is correct
45 Correct 60 ms 2924 KB Output is correct
46 Correct 66 ms 2964 KB Output is correct
47 Correct 60 ms 2960 KB Output is correct
48 Correct 67 ms 2924 KB Output is correct
49 Correct 66 ms 2928 KB Output is correct
50 Correct 63 ms 3052 KB Output is correct
51 Correct 602 ms 16980 KB Output is correct
52 Correct 614 ms 17152 KB Output is correct
53 Correct 674 ms 17080 KB Output is correct
54 Correct 66 ms 2928 KB Output is correct
55 Correct 59 ms 2928 KB Output is correct
56 Correct 191 ms 9100 KB Output is correct
57 Correct 2 ms 424 KB Output is correct
58 Correct 65 ms 2796 KB Output is correct
59 Correct 65 ms 2900 KB Output is correct
60 Correct 682 ms 17156 KB Output is correct
61 Correct 66 ms 2928 KB Output is correct
62 Correct 65 ms 2928 KB Output is correct
63 Correct 65 ms 2848 KB Output is correct
64 Correct 67 ms 2932 KB Output is correct
65 Correct 66 ms 3052 KB Output is correct
66 Correct 66 ms 2940 KB Output is correct
67 Correct 67 ms 3056 KB Output is correct
68 Correct 59 ms 2928 KB Output is correct
69 Correct 66 ms 2924 KB Output is correct
70 Correct 674 ms 16980 KB Output is correct
71 Correct 67 ms 2928 KB Output is correct
72 Correct 601 ms 16984 KB Output is correct
73 Correct 600 ms 17080 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 2 ms 376 KB Output is correct
79 Correct 8 ms 1144 KB Output is correct
80 Correct 682 ms 31276 KB Output is correct
81 Correct 698 ms 31444 KB Output is correct
82 Correct 663 ms 31316 KB Output is correct
83 Correct 692 ms 31216 KB Output is correct
84 Correct 673 ms 31356 KB Output is correct
85 Correct 657 ms 31344 KB Output is correct
86 Correct 193 ms 18528 KB Output is correct
87 Correct 2 ms 376 KB Output is correct