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Submission #443838

# Submission time Handle Problem Language Result Execution time Memory
443838 2021-07-12T08:18:52 Z prvocislo Strange Device (APIO19_strange_device) C++17
100 / 100
 785 ms 68988 KB 
#include <bits/stdc++.h>
typedef long long ll;
typedef long double ld;
using namespace std;

int n;
ll mod, a, b;
const ll inf = 2e18;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0); 
    cin >> n >> a >> b;
    a /= __gcd(a, b+1);
    if (inf/a <= b) mod = inf;
    else mod = a*b;
    vector<pair<ll, int> > v;
    for (int i = 0; i < n; i++)
    {
        ll l, r;
        cin >> l >> r;
        if (r - l + 1 >= mod)
        {
            v.push_back({0, 1});
            v.push_back({mod, -1});
        }
        else
        {
            l %= mod, r %= mod;
            if (l <= r) 
            {
                v.push_back({l, 1}), v.push_back({r+1, -1});
            }
            else
            {
                v.push_back({0, 1}), v.push_back({r+1, -1});
                v.push_back({l, 1}), v.push_back({mod, -1});
            } 
        }
    }
    //cout << "===========\n" << mod << "\n";
    sort(v.begin(), v.end());
    ll ans = 0; int sum = 0;
    for (int i = 0; i < v.size() - 1; i++)
    {
        //cout << v[i].first << " " << v[i].second << "\n";
        sum += v[i].second;
        if (sum) ans += v[i+1].first-v[i].first;
    }
    cout << ans << "\n";
    return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:44:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for (int i = 0; i < v.size() - 1; i++)
      |                     ~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 6 ms 848 KB Output is correct
3 Correct 7 ms 976 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 7 ms 1304 KB Output is correct
17 Correct 76 ms 7228 KB Output is correct
18 Correct 0 ms 204 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 421 ms 33164 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 635 ms 33264 KB Output is correct
3 Correct 648 ms 33324 KB Output is correct
4 Correct 606 ms 68812 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 635 ms 33264 KB Output is correct
3 Correct 648 ms 33324 KB Output is correct
4 Correct 606 ms 68812 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 677 ms 68744 KB Output is correct
7 Correct 630 ms 68804 KB Output is correct
8 Correct 685 ms 68852 KB Output is correct
9 Correct 778 ms 68792 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 635 ms 33264 KB Output is correct
3 Correct 648 ms 33324 KB Output is correct
4 Correct 606 ms 68812 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 59 ms 7220 KB Output is correct
7 Correct 63 ms 7204 KB Output is correct
8 Correct 61 ms 7168 KB Output is correct
9 Correct 62 ms 7264 KB Output is correct
10 Correct 63 ms 7220 KB Output is correct
11 Correct 63 ms 7172 KB Output is correct
12 Correct 58 ms 7224 KB Output is correct
13 Correct 68 ms 7220 KB Output is correct
14 Correct 59 ms 7332 KB Output is correct
15 Correct 71 ms 7272 KB Output is correct
16 Correct 69 ms 7180 KB Output is correct
17 Correct 60 ms 7220 KB Output is correct
18 Correct 657 ms 68924 KB Output is correct
19 Correct 616 ms 68884 KB Output is correct
20 Correct 748 ms 68752 KB Output is correct
21 Correct 73 ms 7208 KB Output is correct
22 Correct 55 ms 7252 KB Output is correct
23 Correct 177 ms 26596 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 76 ms 4800 KB Output is correct
3 Correct 69 ms 4804 KB Output is correct
4 Correct 764 ms 33228 KB Output is correct
5 Correct 70 ms 4952 KB Output is correct
6 Correct 68 ms 4796 KB Output is correct
7 Correct 79 ms 4732 KB Output is correct
8 Correct 71 ms 4768 KB Output is correct
9 Correct 65 ms 4696 KB Output is correct
10 Correct 69 ms 4720 KB Output is correct
11 Correct 70 ms 4792 KB Output is correct
12 Correct 61 ms 4728 KB Output is correct
13 Correct 71 ms 4796 KB Output is correct
14 Correct 736 ms 33172 KB Output is correct
15 Correct 70 ms 4740 KB Output is correct
16 Correct 616 ms 68776 KB Output is correct
17 Correct 634 ms 68988 KB Output is correct
18 Correct 0 ms 204 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 6 ms 848 KB Output is correct
3 Correct 7 ms 976 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 312 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 7 ms 1304 KB Output is correct
17 Correct 76 ms 7228 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 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 421 ms 33164 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 635 ms 33264 KB Output is correct
31 Correct 648 ms 33324 KB Output is correct
32 Correct 606 ms 68812 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 677 ms 68744 KB Output is correct
35 Correct 630 ms 68804 KB Output is correct
36 Correct 685 ms 68852 KB Output is correct
37 Correct 778 ms 68792 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 59 ms 7220 KB Output is correct
40 Correct 63 ms 7204 KB Output is correct
41 Correct 61 ms 7168 KB Output is correct
42 Correct 62 ms 7264 KB Output is correct
43 Correct 63 ms 7220 KB Output is correct
44 Correct 63 ms 7172 KB Output is correct
45 Correct 58 ms 7224 KB Output is correct
46 Correct 68 ms 7220 KB Output is correct
47 Correct 59 ms 7332 KB Output is correct
48 Correct 71 ms 7272 KB Output is correct
49 Correct 69 ms 7180 KB Output is correct
50 Correct 60 ms 7220 KB Output is correct
51 Correct 657 ms 68924 KB Output is correct
52 Correct 616 ms 68884 KB Output is correct
53 Correct 748 ms 68752 KB Output is correct
54 Correct 73 ms 7208 KB Output is correct
55 Correct 55 ms 7252 KB Output is correct
56 Correct 177 ms 26596 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 76 ms 4800 KB Output is correct
59 Correct 69 ms 4804 KB Output is correct
60 Correct 764 ms 33228 KB Output is correct
61 Correct 70 ms 4952 KB Output is correct
62 Correct 68 ms 4796 KB Output is correct
63 Correct 79 ms 4732 KB Output is correct
64 Correct 71 ms 4768 KB Output is correct
65 Correct 65 ms 4696 KB Output is correct
66 Correct 69 ms 4720 KB Output is correct
67 Correct 70 ms 4792 KB Output is correct
68 Correct 61 ms 4728 KB Output is correct
69 Correct 71 ms 4796 KB Output is correct
70 Correct 736 ms 33172 KB Output is correct
71 Correct 70 ms 4740 KB Output is correct
72 Correct 616 ms 68776 KB Output is correct
73 Correct 634 ms 68988 KB Output is correct
74 Correct 0 ms 204 KB Output is correct
75 Correct 1 ms 204 KB Output is correct
76 Correct 1 ms 204 KB Output is correct
77 Correct 1 ms 204 KB Output is correct
78 Correct 0 ms 204 KB Output is correct
79 Correct 6 ms 1232 KB Output is correct
80 Correct 770 ms 68852 KB Output is correct
81 Correct 785 ms 68808 KB Output is correct
82 Correct 738 ms 68852 KB Output is correct
83 Correct 743 ms 68836 KB Output is correct
84 Correct 741 ms 68844 KB Output is correct
85 Correct 736 ms 68900 KB Output is correct
86 Correct 172 ms 26660 KB Output is correct
87 Correct 1 ms 204 KB Output is correct