Submission #1015129

#	Time	Username	Problem	Language	Result	Execution time	Memory
1015129		vjudge1	Gap (APIO16_gap)	C++17	0 / 100	20 ms	1968 KiB

gap

#include<bits/stdc++.h>
#include "gap.h"

using namespace std;

typedef long long ll;

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

  vector<ll> v(N);
  
  while(i <= j)
    {
      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;
}

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

Compilation message (stderr)

gap.cpp: In function 'll subtask1(int)':
gap.cpp:27:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   for(int i = 1; i < v.size(); i++)
      |                  ~~^~~~~~~~~~
gap.cpp:18:13: warning: 'mn' may be used uninitialized in this function [-Wmaybe-uninitialized]
   18 |       MinMax(s, e, mn, mx);
      |       ~~~~~~^~~~~~~~~~~~~~
gap.cpp:18:13: warning: 'mx' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 0 / 30
• Subtask 2: 0 / 70