Submission #1020184

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1020184	2024-07-11T16:29:52 Z	avighna	Strange Device (APIO19_strange_device)	C++17	100 / 100	562 ms	97676 KB

strange_device

#include <bits/stdc++.h>

typedef long long ll;

int main() {
  std::ios_base::sync_with_stdio(false);
  std::cin.tie(nullptr);

  ll n, a, b;
  std::cin >> n >> a >> b;

  // w (B + 1) mod A = 0
  ll cycle = (b / std::gcd(a, b + 1) >= (ll(1e18) + 1) / a)
                 ? ll(1e18) + 1
                 : a / std::gcd(a, b + 1) * b;
  std::vector<std::pair<ll, ll>> ranges;
  std::map<ll, ll> mp;
  while (n--) {
    ll l, r;
    std::cin >> l >> r;
    if (r - l + 1 >= cycle) {
      std::cout << cycle << "\n";
      return 0;
    }
    ll _l = l % cycle, _r = r % cycle;
    if (_l > _r) {
      ranges.push_back({_l, cycle - 1});
      ranges.push_back({0, _r});
    } else {
      ranges.push_back({_l, _r});
    }
  }
  for (auto &[l, r] : ranges) {
    mp[l] = std::max(mp[l], r);
  }
  ll right = 0;
  ll ans = 0;
  for (auto &i : mp) {
    if (i.second < right) {
      continue;
    }
    right = std::max(right, i.first);
    ans += i.second - right + 1;
    right = i.second + 1;
  }
  std::cout << ans << "\n";
  return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	460 KB	Output is correct
2	Correct	4 ms	1380 KB	Output is correct
3	Correct	4 ms	1504 KB	Output is correct
4	Correct	0 ms	456 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	452 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	604 KB	Output is correct
13	Correct	1 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	4 ms	1392 KB	Output is correct
17	Correct	51 ms	10400 KB	Output is correct
18	Correct	1 ms	344 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	344 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	460 KB	Output is correct

Subtask #3
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	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	199 ms	29276 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	489 ms	97608 KB	Output is correct
3	Correct	509 ms	97620 KB	Output is correct
4	Correct	497 ms	97524 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	489 ms	97608 KB	Output is correct
3	Correct	509 ms	97620 KB	Output is correct
4	Correct	497 ms	97524 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	516 ms	97424 KB	Output is correct
7	Correct	536 ms	97436 KB	Output is correct
8	Correct	502 ms	97200 KB	Output is correct
9	Correct	534 ms	97344 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	489 ms	97608 KB	Output is correct
3	Correct	509 ms	97620 KB	Output is correct
4	Correct	497 ms	97524 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	40 ms	10464 KB	Output is correct
7	Correct	53 ms	10116 KB	Output is correct
8	Correct	44 ms	10304 KB	Output is correct
9	Correct	45 ms	10188 KB	Output is correct
10	Correct	41 ms	10300 KB	Output is correct
11	Correct	39 ms	10116 KB	Output is correct
12	Correct	42 ms	10180 KB	Output is correct
13	Correct	46 ms	10184 KB	Output is correct
14	Correct	42 ms	10184 KB	Output is correct
15	Correct	49 ms	10184 KB	Output is correct
16	Correct	49 ms	10308 KB	Output is correct
17	Correct	63 ms	10184 KB	Output is correct
18	Correct	487 ms	97196 KB	Output is correct
19	Correct	551 ms	97208 KB	Output is correct
20	Correct	553 ms	97212 KB	Output is correct
21	Correct	39 ms	10276 KB	Output is correct
22	Correct	45 ms	10180 KB	Output is correct
23	Correct	80 ms	14012 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	48 ms	10372 KB	Output is correct
3	Correct	49 ms	10432 KB	Output is correct
4	Correct	560 ms	97676 KB	Output is correct
5	Correct	50 ms	10272 KB	Output is correct
6	Correct	48 ms	10192 KB	Output is correct
7	Correct	47 ms	10212 KB	Output is correct
8	Correct	48 ms	10288 KB	Output is correct
9	Correct	45 ms	10196 KB	Output is correct
10	Correct	42 ms	10108 KB	Output is correct
11	Correct	48 ms	10324 KB	Output is correct
12	Correct	42 ms	10184 KB	Output is correct
13	Correct	49 ms	10188 KB	Output is correct
14	Correct	553 ms	97564 KB	Output is correct
15	Correct	40 ms	10288 KB	Output is correct
16	Correct	461 ms	97340 KB	Output is correct
17	Correct	508 ms	97260 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	460 KB	Output is correct
2	Correct	4 ms	1380 KB	Output is correct
3	Correct	4 ms	1504 KB	Output is correct
4	Correct	0 ms	456 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	452 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	604 KB	Output is correct
13	Correct	1 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	4 ms	1392 KB	Output is correct
17	Correct	51 ms	10400 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	1 ms	344 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	460 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	199 ms	29276 KB	Output is correct
29	Correct	0 ms	344 KB	Output is correct
30	Correct	489 ms	97608 KB	Output is correct
31	Correct	509 ms	97620 KB	Output is correct
32	Correct	497 ms	97524 KB	Output is correct
33	Correct	1 ms	344 KB	Output is correct
34	Correct	516 ms	97424 KB	Output is correct
35	Correct	536 ms	97436 KB	Output is correct
36	Correct	502 ms	97200 KB	Output is correct
37	Correct	534 ms	97344 KB	Output is correct
38	Correct	0 ms	348 KB	Output is correct
39	Correct	40 ms	10464 KB	Output is correct
40	Correct	53 ms	10116 KB	Output is correct
41	Correct	44 ms	10304 KB	Output is correct
42	Correct	45 ms	10188 KB	Output is correct
43	Correct	41 ms	10300 KB	Output is correct
44	Correct	39 ms	10116 KB	Output is correct
45	Correct	42 ms	10180 KB	Output is correct
46	Correct	46 ms	10184 KB	Output is correct
47	Correct	42 ms	10184 KB	Output is correct
48	Correct	49 ms	10184 KB	Output is correct
49	Correct	49 ms	10308 KB	Output is correct
50	Correct	63 ms	10184 KB	Output is correct
51	Correct	487 ms	97196 KB	Output is correct
52	Correct	551 ms	97208 KB	Output is correct
53	Correct	553 ms	97212 KB	Output is correct
54	Correct	39 ms	10276 KB	Output is correct
55	Correct	45 ms	10180 KB	Output is correct
56	Correct	80 ms	14012 KB	Output is correct
57	Correct	0 ms	348 KB	Output is correct
58	Correct	48 ms	10372 KB	Output is correct
59	Correct	49 ms	10432 KB	Output is correct
60	Correct	560 ms	97676 KB	Output is correct
61	Correct	50 ms	10272 KB	Output is correct
62	Correct	48 ms	10192 KB	Output is correct
63	Correct	47 ms	10212 KB	Output is correct
64	Correct	48 ms	10288 KB	Output is correct
65	Correct	45 ms	10196 KB	Output is correct
66	Correct	42 ms	10108 KB	Output is correct
67	Correct	48 ms	10324 KB	Output is correct
68	Correct	42 ms	10184 KB	Output is correct
69	Correct	49 ms	10188 KB	Output is correct
70	Correct	553 ms	97564 KB	Output is correct
71	Correct	40 ms	10288 KB	Output is correct
72	Correct	461 ms	97340 KB	Output is correct
73	Correct	508 ms	97260 KB	Output is correct
74	Correct	0 ms	348 KB	Output is correct
75	Correct	0 ms	348 KB	Output is correct
76	Correct	0 ms	348 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	1480 KB	Output is correct
80	Correct	553 ms	97244 KB	Output is correct
81	Correct	529 ms	97360 KB	Output is correct
82	Correct	554 ms	97356 KB	Output is correct
83	Correct	562 ms	97516 KB	Output is correct
84	Correct	554 ms	97204 KB	Output is correct
85	Correct	528 ms	97464 KB	Output is correct
86	Correct	85 ms	14268 KB	Output is correct
87	Correct	1 ms	344 KB	Output is correct

Submission #1020184

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