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Submission #839350

# Submission time Handle Problem Language Result Execution time Memory
839350 2023-08-29T19:21:24 Z tch1cherin Strange Device (APIO19_strange_device) C++17
100 / 100
 630 ms 68988 KB 
#include <bits/stdc++.h>
using namespace std;

const long long INF = 2e18;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int N;
  long long A, B;
  cin >> N >> A >> B;
  long long AI = A / gcd(A, B + 1);
  long long M = INF / AI >= B ? AI * B : INF;   
  vector<pair<long long, int>> events;
  for (int i = 0; i < N; i++) {
    long long L, R;
    cin >> L >> R;
    if (R - L >= M) {
      cout << M << "\n";
      exit(0);
    }
    if (R % M < L % M) {
      events.push_back({L % M, 1});
      events.push_back({M, -1});
      events.push_back({0, 1});
      events.push_back({R % M + 1, -1}); 
    } else {
      events.push_back({L % M, 1});
      events.push_back({R % M + 1, -1});
    }
  }
  sort(events.begin(), events.end());
  long long ans = 0, last = 0;
  int open = 0;
  for (auto [x, type] : events) {
    if (open != 0) {
      ans += x - last;
    }
    open += type;
    last = x;
  }
  cout << ans << "\n";
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 4 ms 856 KB Output is correct
3 Correct 4 ms 856 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 232 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 336 KB Output is correct
16 Correct 4 ms 984 KB Output is correct
17 Correct 44 ms 4508 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 284 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 320 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 266 ms 56880 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 393 ms 33296 KB Output is correct
3 Correct 410 ms 68980 KB Output is correct
4 Correct 379 ms 68988 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 393 ms 33296 KB Output is correct
3 Correct 410 ms 68980 KB Output is correct
4 Correct 379 ms 68988 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 438 ms 68868 KB Output is correct
7 Correct 385 ms 68940 KB Output is correct
8 Correct 393 ms 68844 KB Output is correct
9 Correct 456 ms 68932 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 393 ms 33296 KB Output is correct
3 Correct 410 ms 68980 KB Output is correct
4 Correct 379 ms 68988 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 42 ms 7204 KB Output is correct
7 Correct 40 ms 7288 KB Output is correct
8 Correct 40 ms 7248 KB Output is correct
9 Correct 38 ms 7408 KB Output is correct
10 Correct 38 ms 7264 KB Output is correct
11 Correct 38 ms 7236 KB Output is correct
12 Correct 36 ms 7296 KB Output is correct
13 Correct 41 ms 7208 KB Output is correct
14 Correct 37 ms 7196 KB Output is correct
15 Correct 44 ms 7312 KB Output is correct
16 Correct 44 ms 7240 KB Output is correct
17 Correct 37 ms 7236 KB Output is correct
18 Correct 431 ms 68880 KB Output is correct
19 Correct 389 ms 68872 KB Output is correct
20 Correct 471 ms 68952 KB Output is correct
21 Correct 44 ms 7236 KB Output is correct
22 Correct 34 ms 7244 KB Output is correct
23 Correct 110 ms 26684 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 43 ms 4560 KB Output is correct
3 Correct 45 ms 7244 KB Output is correct
4 Correct 630 ms 68876 KB Output is correct
5 Correct 41 ms 7220 KB Output is correct
6 Correct 41 ms 7280 KB Output is correct
7 Correct 44 ms 7248 KB Output is correct
8 Correct 45 ms 7228 KB Output is correct
9 Correct 40 ms 7280 KB Output is correct
10 Correct 43 ms 7292 KB Output is correct
11 Correct 43 ms 7240 KB Output is correct
12 Correct 40 ms 7264 KB Output is correct
13 Correct 43 ms 7264 KB Output is correct
14 Correct 454 ms 68976 KB Output is correct
15 Correct 44 ms 7240 KB Output is correct
16 Correct 373 ms 68888 KB Output is correct
17 Correct 406 ms 68880 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 4 ms 856 KB Output is correct
3 Correct 4 ms 856 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 232 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 336 KB Output is correct
16 Correct 4 ms 984 KB Output is correct
17 Correct 44 ms 4508 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 284 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 320 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 266 ms 56880 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 393 ms 33296 KB Output is correct
31 Correct 410 ms 68980 KB Output is correct
32 Correct 379 ms 68988 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 438 ms 68868 KB Output is correct
35 Correct 385 ms 68940 KB Output is correct
36 Correct 393 ms 68844 KB Output is correct
37 Correct 456 ms 68932 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 42 ms 7204 KB Output is correct
40 Correct 40 ms 7288 KB Output is correct
41 Correct 40 ms 7248 KB Output is correct
42 Correct 38 ms 7408 KB Output is correct
43 Correct 38 ms 7264 KB Output is correct
44 Correct 38 ms 7236 KB Output is correct
45 Correct 36 ms 7296 KB Output is correct
46 Correct 41 ms 7208 KB Output is correct
47 Correct 37 ms 7196 KB Output is correct
48 Correct 44 ms 7312 KB Output is correct
49 Correct 44 ms 7240 KB Output is correct
50 Correct 37 ms 7236 KB Output is correct
51 Correct 431 ms 68880 KB Output is correct
52 Correct 389 ms 68872 KB Output is correct
53 Correct 471 ms 68952 KB Output is correct
54 Correct 44 ms 7236 KB Output is correct
55 Correct 34 ms 7244 KB Output is correct
56 Correct 110 ms 26684 KB Output is correct
57 Correct 0 ms 212 KB Output is correct
58 Correct 43 ms 4560 KB Output is correct
59 Correct 45 ms 7244 KB Output is correct
60 Correct 630 ms 68876 KB Output is correct
61 Correct 41 ms 7220 KB Output is correct
62 Correct 41 ms 7280 KB Output is correct
63 Correct 44 ms 7248 KB Output is correct
64 Correct 45 ms 7228 KB Output is correct
65 Correct 40 ms 7280 KB Output is correct
66 Correct 43 ms 7292 KB Output is correct
67 Correct 43 ms 7240 KB Output is correct
68 Correct 40 ms 7264 KB Output is correct
69 Correct 43 ms 7264 KB Output is correct
70 Correct 454 ms 68976 KB Output is correct
71 Correct 44 ms 7240 KB Output is correct
72 Correct 373 ms 68888 KB Output is correct
73 Correct 406 ms 68880 KB Output is correct
74 Correct 1 ms 212 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 1 ms 212 KB Output is correct
77 Correct 0 ms 212 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 4 ms 1368 KB Output is correct
80 Correct 539 ms 68924 KB Output is correct
81 Correct 563 ms 68944 KB Output is correct
82 Correct 508 ms 68872 KB Output is correct
83 Correct 456 ms 68888 KB Output is correct
84 Correct 463 ms 68928 KB Output is correct
85 Correct 473 ms 68908 KB Output is correct
86 Correct 107 ms 26728 KB Output is correct
87 Correct 0 ms 212 KB Output is correct