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Submission #953878

# Submission time Handle Problem Language Result Execution time Memory
953878 2024-03-26T18:54:31 Z Vladth11 Strange Device (APIO19_strange_device) C++14
100 / 100
 543 ms 70368 KB 
#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#pragma GCC optimize ("Ofast")
#pragma GCC target ("avx2")

using namespace std;
typedef long long ll;
typedef pair <ll, ll> pii;

const ll NMAX = 300001;
const int INF = 1e9;
const ll nrbits = 20;
const ll MOD = 998244353;

const ll VALMAX = 2e18;

signed main() {
#ifdef HOME
    ifstream cin(".in");
    ofstream cout(".out");
#endif // HOME
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n;
    ll a, b;
    cin >> n >> a >> b;
    ll period;
    ll g = __gcd(a, b + 1);
    a /= g;
    if(a >= VALMAX / b){
        period = VALMAX;
    }else{
        period = a * b;
    }
    vector <pii> events;
    while(n--){
        ll l, r;
        cin >> l >> r;
        if(r - l + 1 >= period){
            events.push_back({0, 1});
            events.push_back({period, -1});
            continue;
        }
        l %= period;
        r %= period;
        if(l <= r){
            events.push_back({l, 1});
            events.push_back({r + 1, -1});
        }else{
            events.push_back({0, 1});
            events.push_back({r + 1, -1});
            events.push_back({l, 1});
            events.push_back({period, -1});
        }
    }
    int s = 0;
    ll total = 0;
    sort(events.begin(), events.end());
    for(int i = 0; i < events.size(); i++){
        s += events[i].second;
        if(events[i].first < period && (i < (events.size() - 1))){
            if(s > 0)
                total += (min(period, events[i + 1].first) - events[i].first);
        }
    }
    cout << total;
    return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:61:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |     for(int i = 0; i < events.size(); i++){
      |                    ~~^~~~~~~~~~~~~~~
strange_device.cpp:63:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |         if(events[i].first < period && (i < (events.size() - 1))){
      |                                         ~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 6 ms 1436 KB Output is correct
3 Correct 4 ms 1244 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 6 ms 1368 KB Output is correct
17 Correct 50 ms 8404 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 254 ms 46084 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 396 ms 51356 KB Output is correct
3 Correct 395 ms 51368 KB Output is correct
4 Correct 375 ms 69104 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 396 ms 51356 KB Output is correct
3 Correct 395 ms 51368 KB Output is correct
4 Correct 375 ms 69104 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 404 ms 69036 KB Output is correct
7 Correct 383 ms 69028 KB Output is correct
8 Correct 384 ms 69924 KB Output is correct
9 Correct 452 ms 70368 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 396 ms 51356 KB Output is correct
3 Correct 395 ms 51368 KB Output is correct
4 Correct 375 ms 69104 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 38 ms 9172 KB Output is correct
7 Correct 40 ms 7372 KB Output is correct
8 Correct 37 ms 7368 KB Output is correct
9 Correct 43 ms 9168 KB Output is correct
10 Correct 36 ms 8556 KB Output is correct
11 Correct 38 ms 7880 KB Output is correct
12 Correct 36 ms 7380 KB Output is correct
13 Correct 44 ms 8068 KB Output is correct
14 Correct 37 ms 9164 KB Output is correct
15 Correct 44 ms 7884 KB Output is correct
16 Correct 51 ms 8392 KB Output is correct
17 Correct 37 ms 7380 KB Output is correct
18 Correct 407 ms 69284 KB Output is correct
19 Correct 370 ms 69580 KB Output is correct
20 Correct 482 ms 69780 KB Output is correct
21 Correct 45 ms 7880 KB Output is correct
22 Correct 33 ms 8660 KB Output is correct
23 Correct 131 ms 28000 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 42 ms 7892 KB Output is correct
3 Correct 44 ms 8608 KB Output is correct
4 Correct 543 ms 60320 KB Output is correct
5 Correct 50 ms 9036 KB Output is correct
6 Correct 57 ms 9172 KB Output is correct
7 Correct 43 ms 8720 KB Output is correct
8 Correct 45 ms 9172 KB Output is correct
9 Correct 42 ms 8140 KB Output is correct
10 Correct 48 ms 7372 KB Output is correct
11 Correct 42 ms 7628 KB Output is correct
12 Correct 37 ms 8140 KB Output is correct
13 Correct 45 ms 8208 KB Output is correct
14 Correct 476 ms 60544 KB Output is correct
15 Correct 46 ms 7628 KB Output is correct
16 Correct 371 ms 70044 KB Output is correct
17 Correct 390 ms 69288 KB Output is correct
18 Correct 0 ms 344 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 6 ms 1436 KB Output is correct
3 Correct 4 ms 1244 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 6 ms 1368 KB Output is correct
17 Correct 50 ms 8404 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 254 ms 46084 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 396 ms 51356 KB Output is correct
31 Correct 395 ms 51368 KB Output is correct
32 Correct 375 ms 69104 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 404 ms 69036 KB Output is correct
35 Correct 383 ms 69028 KB Output is correct
36 Correct 384 ms 69924 KB Output is correct
37 Correct 452 ms 70368 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 38 ms 9172 KB Output is correct
40 Correct 40 ms 7372 KB Output is correct
41 Correct 37 ms 7368 KB Output is correct
42 Correct 43 ms 9168 KB Output is correct
43 Correct 36 ms 8556 KB Output is correct
44 Correct 38 ms 7880 KB Output is correct
45 Correct 36 ms 7380 KB Output is correct
46 Correct 44 ms 8068 KB Output is correct
47 Correct 37 ms 9164 KB Output is correct
48 Correct 44 ms 7884 KB Output is correct
49 Correct 51 ms 8392 KB Output is correct
50 Correct 37 ms 7380 KB Output is correct
51 Correct 407 ms 69284 KB Output is correct
52 Correct 370 ms 69580 KB Output is correct
53 Correct 482 ms 69780 KB Output is correct
54 Correct 45 ms 7880 KB Output is correct
55 Correct 33 ms 8660 KB Output is correct
56 Correct 131 ms 28000 KB Output is correct
57 Correct 0 ms 600 KB Output is correct
58 Correct 42 ms 7892 KB Output is correct
59 Correct 44 ms 8608 KB Output is correct
60 Correct 543 ms 60320 KB Output is correct
61 Correct 50 ms 9036 KB Output is correct
62 Correct 57 ms 9172 KB Output is correct
63 Correct 43 ms 8720 KB Output is correct
64 Correct 45 ms 9172 KB Output is correct
65 Correct 42 ms 8140 KB Output is correct
66 Correct 48 ms 7372 KB Output is correct
67 Correct 42 ms 7628 KB Output is correct
68 Correct 37 ms 8140 KB Output is correct
69 Correct 45 ms 8208 KB Output is correct
70 Correct 476 ms 60544 KB Output is correct
71 Correct 46 ms 7628 KB Output is correct
72 Correct 371 ms 70044 KB Output is correct
73 Correct 390 ms 69288 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 0 ms 344 KB Output is correct
76 Correct 1 ms 500 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 4 ms 1248 KB Output is correct
80 Correct 525 ms 69800 KB Output is correct
81 Correct 534 ms 69200 KB Output is correct
82 Correct 447 ms 70040 KB Output is correct
83 Correct 434 ms 70076 KB Output is correct
84 Correct 463 ms 69876 KB Output is correct
85 Correct 459 ms 70060 KB Output is correct
86 Correct 112 ms 28844 KB Output is correct
87 Correct 1 ms 348 KB Output is correct