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Submission #782439

# Submission time Handle Problem Language Result Execution time Memory
782439 2023-07-14T01:37:22 Z kebine Strange Device (APIO19_strange_device) C++17
100 / 100
 387 ms 18932 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll, ll> pll;
const ll MAX = 1e18;

vector<pll> vec;
// {Left, Right}
ll n, a, b, length, ans = 0;

void opr(ll l, ll r) {
  ll pushl = min(l, r);
  ll pushr = max(l, r);

  if (pushl == 0) {
    // pushl = length;
  }

  if (pushr == 0) {
    // pushr = length;
  }

  vec.push_back({pushl, pushr});
}

void answer() {
  sort(vec.begin(), vec.end());

  ll idx = -1;
  for (int i = 0; i < vec.size(); ++i)
  {
    // cout << vec[i].first << " " << vec[i].second << "\n";
    pll now = vec[i];
    if (now.second < now.first)
    {
      continue ;
    }

    if (idx >= now.first)
    {
      if (now.second <= idx)
      {
        continue ;
      } else {
        idx++;
        ans += now.second - idx + 1;
        idx = now.second;
      }
    } else {
      idx = now.first;
      ans += now.second - idx + 1;
      idx = now.second;
    }
  }

  cout << ans << "\n";
}

ll fpb(ll a, ll b) {
  if (a == 0)
  {
    return b;
  }

  return fpb(b%a, a);
}

int main(){
  ios_base::sync_with_stdio(false); cin.tie(0);
  cin >> n >> a >> b;
  ull lebek;
  // if (a == 1) {
  //   lebek = b;
  // } else {
  //   if (a % 2)
  //   {
  //     lebek = a * b;
  //   } else {
  //     lebek = (a/2) * b;
  //   }
  // }

  lebek = a / fpb(a, b+1) * b;

  // length = lebek;
  length = min(lebek, (ull)MAX);


  for (int i = 0; i < n; ++i)
  {
    ll nowl, nowr;
    cin >> nowl >> nowr;

    if (nowr-nowl+1 >= length)
    {
      cout << length << "\n";
      return 0;
    }

    if (nowl/length != nowr/length) {
      opr(nowl % length + 1, length);
      opr(1, nowr % length + 1);
    } else {
      opr(nowl % length + 1, nowr % length + 1);
    }
  }

  answer();
  return 0;
}

Compilation message

strange_device.cpp: In function 'void answer()':
strange_device.cpp:31:21: 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]
   31 |   for (int i = 0; i < vec.size(); ++i)
      |                   ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 4 ms 600 KB Output is correct
3 Correct 4 ms 600 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 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 1 ms 280 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 42 ms 2388 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 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 212 ms 16772 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 330 ms 16816 KB Output is correct
3 Correct 326 ms 16812 KB Output is correct
4 Correct 327 ms 16848 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 330 ms 16816 KB Output is correct
3 Correct 326 ms 16812 KB Output is correct
4 Correct 327 ms 16848 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 321 ms 16868 KB Output is correct
7 Correct 314 ms 16788 KB Output is correct
8 Correct 350 ms 16748 KB Output is correct
9 Correct 342 ms 16780 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 330 ms 16816 KB Output is correct
3 Correct 326 ms 16812 KB Output is correct
4 Correct 327 ms 16848 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 29 ms 2512 KB Output is correct
7 Correct 37 ms 2476 KB Output is correct
8 Correct 29 ms 2432 KB Output is correct
9 Correct 30 ms 2432 KB Output is correct
10 Correct 29 ms 2472 KB Output is correct
11 Correct 31 ms 2472 KB Output is correct
12 Correct 29 ms 2512 KB Output is correct
13 Correct 31 ms 2504 KB Output is correct
14 Correct 29 ms 2432 KB Output is correct
15 Correct 34 ms 2488 KB Output is correct
16 Correct 32 ms 2416 KB Output is correct
17 Correct 40 ms 2416 KB Output is correct
18 Correct 331 ms 16788 KB Output is correct
19 Correct 308 ms 16808 KB Output is correct
20 Correct 343 ms 16816 KB Output is correct
21 Correct 32 ms 2512 KB Output is correct
22 Correct 33 ms 2512 KB Output is correct
23 Correct 92 ms 8612 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 31 ms 2512 KB Output is correct
3 Correct 31 ms 2512 KB Output is correct
4 Correct 352 ms 16840 KB Output is correct
5 Correct 34 ms 2512 KB Output is correct
6 Correct 32 ms 2516 KB Output is correct
7 Correct 31 ms 2512 KB Output is correct
8 Correct 32 ms 2512 KB Output is correct
9 Correct 31 ms 2444 KB Output is correct
10 Correct 31 ms 2432 KB Output is correct
11 Correct 32 ms 2496 KB Output is correct
12 Correct 28 ms 2512 KB Output is correct
13 Correct 32 ms 2400 KB Output is correct
14 Correct 322 ms 16800 KB Output is correct
15 Correct 32 ms 2512 KB Output is correct
16 Correct 323 ms 16836 KB Output is correct
17 Correct 308 ms 16860 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 4 ms 600 KB Output is correct
3 Correct 4 ms 600 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 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 1 ms 280 KB Output is correct
16 Correct 4 ms 600 KB Output is correct
17 Correct 42 ms 2388 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 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 212 ms 16772 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 330 ms 16816 KB Output is correct
31 Correct 326 ms 16812 KB Output is correct
32 Correct 327 ms 16848 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 321 ms 16868 KB Output is correct
35 Correct 314 ms 16788 KB Output is correct
36 Correct 350 ms 16748 KB Output is correct
37 Correct 342 ms 16780 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 29 ms 2512 KB Output is correct
40 Correct 37 ms 2476 KB Output is correct
41 Correct 29 ms 2432 KB Output is correct
42 Correct 30 ms 2432 KB Output is correct
43 Correct 29 ms 2472 KB Output is correct
44 Correct 31 ms 2472 KB Output is correct
45 Correct 29 ms 2512 KB Output is correct
46 Correct 31 ms 2504 KB Output is correct
47 Correct 29 ms 2432 KB Output is correct
48 Correct 34 ms 2488 KB Output is correct
49 Correct 32 ms 2416 KB Output is correct
50 Correct 40 ms 2416 KB Output is correct
51 Correct 331 ms 16788 KB Output is correct
52 Correct 308 ms 16808 KB Output is correct
53 Correct 343 ms 16816 KB Output is correct
54 Correct 32 ms 2512 KB Output is correct
55 Correct 33 ms 2512 KB Output is correct
56 Correct 92 ms 8612 KB Output is correct
57 Correct 0 ms 212 KB Output is correct
58 Correct 31 ms 2512 KB Output is correct
59 Correct 31 ms 2512 KB Output is correct
60 Correct 352 ms 16840 KB Output is correct
61 Correct 34 ms 2512 KB Output is correct
62 Correct 32 ms 2516 KB Output is correct
63 Correct 31 ms 2512 KB Output is correct
64 Correct 32 ms 2512 KB Output is correct
65 Correct 31 ms 2444 KB Output is correct
66 Correct 31 ms 2432 KB Output is correct
67 Correct 32 ms 2496 KB Output is correct
68 Correct 28 ms 2512 KB Output is correct
69 Correct 32 ms 2400 KB Output is correct
70 Correct 322 ms 16800 KB Output is correct
71 Correct 32 ms 2512 KB Output is correct
72 Correct 323 ms 16836 KB Output is correct
73 Correct 308 ms 16860 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 1 ms 320 KB Output is correct
76 Correct 1 ms 212 KB Output is correct
77 Correct 1 ms 212 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 4 ms 1080 KB Output is correct
80 Correct 387 ms 18824 KB Output is correct
81 Correct 375 ms 18412 KB Output is correct
82 Correct 349 ms 18092 KB Output is correct
83 Correct 340 ms 18048 KB Output is correct
84 Correct 373 ms 18932 KB Output is correct
85 Correct 340 ms 18860 KB Output is correct
86 Correct 99 ms 10580 KB Output is correct
87 Correct 0 ms 320 KB Output is correct