Submission #1015189

# Submission time Handle Problem Language Result Execution time Memory
1015189 2024-07-06T07:14:42 Z vjudge1 Gap (APIO16_gap) C++17
30 / 100
39 ms 3560 KB
#include<bits/stdc++.h>
#include "gap.h"

using namespace std;

typedef long long ll;


ll subtask1(int N);

ll subtask2(ll s = 0, ll e = 1e18)
{
  if(s >= e) return 0;
  
  ll mid = (s + e) / 2;
  ll mx1, mx2, mn1, mn2;

  MinMax(s, mid, &mn1, &mx1);
  MinMax(mid + 1, e, &mn2, &mx2);
  
  if(mn2 == -1) return subtask2(mn1, mx1);
  if(mn1 == -1) return subtask2(mn2, mx2);

  ll ans = mn2 - mx1;

  if(ans < mx1 - mn1)
    ans = max(ans, subtask2(mn1, mx1));
  
  if(ans < mx2 - mn2)
    ans = max(ans, subtask2(mn1, mx1));

  return ans;
}

ll findGap(int T, int N)
{
  if(T == 1)
    return subtask1(N);
  return subtask2();
}
















ll subtask1(int N)
{
  int i = 0, j = N - 1;
  ll s = 0, e = 1e18;
  ll *mn = new ll, *mx = new ll;

  vector<ll> v(N);
  
  while(i <= j && s <= e)
    {
      MinMax(s, e, mn, mx);
      v[i] = *mn;
      v[j] = *mx;
      i++, j--;
      s = *mn + 1;
      e = *mx - 1;
    }

  ll ans = 0;
  for(int i = 1; i < v.size(); i++)
    ans = max(ans, v[i] - v[i - 1]);
  return ans;
}

Compilation message

gap.cpp: In function 'll subtask1(int)':
gap.cpp:76:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |   for(int i = 1; i < v.size(); i++)
      |                  ~~^~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 2392 KB Output is correct
3 Correct 0 ms 2392 KB Output is correct
4 Correct 0 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 0 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2472 KB Output is correct
16 Correct 7 ms 2648 KB Output is correct
17 Correct 6 ms 2648 KB Output is correct
18 Correct 7 ms 2648 KB Output is correct
19 Correct 9 ms 2740 KB Output is correct
20 Correct 5 ms 2648 KB Output is correct
21 Correct 27 ms 3408 KB Output is correct
22 Correct 32 ms 3416 KB Output is correct
23 Correct 36 ms 3408 KB Output is correct
24 Correct 23 ms 3416 KB Output is correct
25 Correct 24 ms 3416 KB Output is correct
26 Correct 23 ms 3416 KB Output is correct
27 Correct 21 ms 3508 KB Output is correct
28 Correct 32 ms 3416 KB Output is correct
29 Correct 32 ms 3560 KB Output is correct
30 Correct 18 ms 3416 KB Output is correct
31 Correct 0 ms 2392 KB Output is correct
32 Correct 0 ms 2392 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Incorrect 1 ms 2392 KB Output isn't correct
3 Incorrect 0 ms 2392 KB Output isn't correct
4 Correct 0 ms 2392 KB Output is correct
5 Partially correct 0 ms 2392 KB Partially correct
6 Incorrect 0 ms 2392 KB Output isn't correct
7 Partially correct 1 ms 2392 KB Partially correct
8 Incorrect 0 ms 2392 KB Output isn't correct
9 Incorrect 1 ms 2392 KB Output isn't correct
10 Incorrect 1 ms 2392 KB Output isn't correct
11 Incorrect 1 ms 2392 KB Output isn't correct
12 Incorrect 0 ms 2392 KB Output isn't correct
13 Incorrect 1 ms 2392 KB Output isn't correct
14 Incorrect 0 ms 2392 KB Output isn't correct
15 Partially correct 0 ms 2392 KB Partially correct
16 Incorrect 7 ms 2392 KB Output isn't correct
17 Incorrect 6 ms 2392 KB Output isn't correct
18 Incorrect 4 ms 2392 KB Output isn't correct
19 Incorrect 6 ms 2392 KB Output isn't correct
20 Incorrect 3 ms 2392 KB Output isn't correct
21 Incorrect 15 ms 2648 KB Output isn't correct
22 Incorrect 24 ms 2648 KB Output isn't correct
23 Incorrect 20 ms 2864 KB Output isn't correct
24 Incorrect 39 ms 2648 KB Output isn't correct
25 Partially correct 25 ms 2648 KB Partially correct
26 Incorrect 28 ms 2648 KB Output isn't correct
27 Incorrect 29 ms 2648 KB Output isn't correct
28 Incorrect 27 ms 2824 KB Output isn't correct
29 Incorrect 20 ms 2648 KB Output isn't correct
30 Incorrect 7 ms 2648 KB Output isn't correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct