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Submission #391267

# Submission time Handle Problem Language Result Execution time Memory
391267 2021-04-18T10:55:44 Z phathnv Strange Device (APIO19_strange_device) C++11
100 / 100
 828 ms 69116 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

int n;
ll a, b;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin >> n >> a >> b;

    ll k = a / __gcd(a, b + 1);
    ll cycle = 0;
    if (b > 2e18 / k)
        cycle = 2e18;
    else
        cycle = b * k;

    vector<pair<ll, int>> e;
    auto addSegment = [&](ll l, ll r){
        e.push_back({l, 1});
        e.push_back({r + 1, -1});
    };
    for(int i = 1; i <= n; i++){
        ll l, r;
        cin >> l >> r;
        if (r - l + 1 >= cycle){
            cout << cycle;
            return 0;
        }
        l %= cycle;
        r %= cycle;
        if (l <= r){
            addSegment(l, r);
        } else {
            addSegment(l, cycle - 1);
            addSegment(0, r);
        }
    }
    sort(e.begin(), e.end());
    int cnt = 0;
    ll res = 0, last = 0;
    for(auto p : e){
        if (p.first != last){
            res += (cnt > 0) * (p.first - last);
            last = p.first;
        }
        cnt += p.second;
    }
    cout << res;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 6 ms 848 KB Output is correct
3 Correct 7 ms 848 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 6 ms 976 KB Output is correct
17 Correct 66 ms 4544 KB Output is correct
18 Correct 1 ms 204 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 422 ms 33168 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 581 ms 33168 KB Output is correct
3 Correct 611 ms 33288 KB Output is correct
4 Correct 587 ms 69052 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 581 ms 33168 KB Output is correct
3 Correct 611 ms 33288 KB Output is correct
4 Correct 587 ms 69052 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 622 ms 69116 KB Output is correct
7 Correct 590 ms 68920 KB Output is correct
8 Correct 601 ms 69020 KB Output is correct
9 Correct 720 ms 69108 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 581 ms 33168 KB Output is correct
3 Correct 611 ms 33288 KB Output is correct
4 Correct 587 ms 69052 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 58 ms 7232 KB Output is correct
7 Correct 69 ms 7316 KB Output is correct
8 Correct 66 ms 7220 KB Output is correct
9 Correct 57 ms 7212 KB Output is correct
10 Correct 55 ms 7224 KB Output is correct
11 Correct 59 ms 7264 KB Output is correct
12 Correct 63 ms 7236 KB Output is correct
13 Correct 65 ms 7232 KB Output is correct
14 Correct 58 ms 7240 KB Output is correct
15 Correct 71 ms 7180 KB Output is correct
16 Correct 66 ms 7236 KB Output is correct
17 Correct 58 ms 7272 KB Output is correct
18 Correct 638 ms 68924 KB Output is correct
19 Correct 603 ms 68948 KB Output is correct
20 Correct 759 ms 68920 KB Output is correct
21 Correct 65 ms 7268 KB Output is correct
22 Correct 53 ms 7216 KB Output is correct
23 Correct 173 ms 26900 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 67 ms 4520 KB Output is correct
3 Correct 69 ms 4528 KB Output is correct
4 Correct 828 ms 68932 KB Output is correct
5 Correct 62 ms 7228 KB Output is correct
6 Correct 67 ms 7308 KB Output is correct
7 Correct 73 ms 7204 KB Output is correct
8 Correct 66 ms 7280 KB Output is correct
9 Correct 61 ms 7240 KB Output is correct
10 Correct 66 ms 7248 KB Output is correct
11 Correct 64 ms 7200 KB Output is correct
12 Correct 59 ms 7236 KB Output is correct
13 Correct 66 ms 7284 KB Output is correct
14 Correct 726 ms 68888 KB Output is correct
15 Correct 67 ms 7228 KB Output is correct
16 Correct 590 ms 68968 KB Output is correct
17 Correct 634 ms 68832 KB Output is correct
18 Correct 1 ms 204 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 6 ms 848 KB Output is correct
3 Correct 7 ms 848 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 6 ms 976 KB Output is correct
17 Correct 66 ms 4544 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 422 ms 33168 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 581 ms 33168 KB Output is correct
31 Correct 611 ms 33288 KB Output is correct
32 Correct 587 ms 69052 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 622 ms 69116 KB Output is correct
35 Correct 590 ms 68920 KB Output is correct
36 Correct 601 ms 69020 KB Output is correct
37 Correct 720 ms 69108 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 58 ms 7232 KB Output is correct
40 Correct 69 ms 7316 KB Output is correct
41 Correct 66 ms 7220 KB Output is correct
42 Correct 57 ms 7212 KB Output is correct
43 Correct 55 ms 7224 KB Output is correct
44 Correct 59 ms 7264 KB Output is correct
45 Correct 63 ms 7236 KB Output is correct
46 Correct 65 ms 7232 KB Output is correct
47 Correct 58 ms 7240 KB Output is correct
48 Correct 71 ms 7180 KB Output is correct
49 Correct 66 ms 7236 KB Output is correct
50 Correct 58 ms 7272 KB Output is correct
51 Correct 638 ms 68924 KB Output is correct
52 Correct 603 ms 68948 KB Output is correct
53 Correct 759 ms 68920 KB Output is correct
54 Correct 65 ms 7268 KB Output is correct
55 Correct 53 ms 7216 KB Output is correct
56 Correct 173 ms 26900 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 67 ms 4520 KB Output is correct
59 Correct 69 ms 4528 KB Output is correct
60 Correct 828 ms 68932 KB Output is correct
61 Correct 62 ms 7228 KB Output is correct
62 Correct 67 ms 7308 KB Output is correct
63 Correct 73 ms 7204 KB Output is correct
64 Correct 66 ms 7280 KB Output is correct
65 Correct 61 ms 7240 KB Output is correct
66 Correct 66 ms 7248 KB Output is correct
67 Correct 64 ms 7200 KB Output is correct
68 Correct 59 ms 7236 KB Output is correct
69 Correct 66 ms 7284 KB Output is correct
70 Correct 726 ms 68888 KB Output is correct
71 Correct 67 ms 7228 KB Output is correct
72 Correct 590 ms 68968 KB Output is correct
73 Correct 634 ms 68832 KB Output is correct
74 Correct 1 ms 204 KB Output is correct
75 Correct 1 ms 204 KB Output is correct
76 Correct 1 ms 312 KB Output is correct
77 Correct 1 ms 316 KB Output is correct
78 Correct 1 ms 204 KB Output is correct
79 Correct 6 ms 1232 KB Output is correct
80 Correct 757 ms 68984 KB Output is correct
81 Correct 781 ms 68928 KB Output is correct
82 Correct 732 ms 68880 KB Output is correct
83 Correct 708 ms 68864 KB Output is correct
84 Correct 706 ms 68856 KB Output is correct
85 Correct 711 ms 68748 KB Output is correct
86 Correct 166 ms 26660 KB Output is correct
87 Correct 1 ms 332 KB Output is correct