oj.uz

Submission #373390

# Submission time Handle Problem Language Result Execution time Memory
373390 2021-03-04T12:08:17 Z ahmedfouadnew Table Tennis (info1cup20_tabletennis) C++17
43 / 100
 3000 ms 126256 KB 
#include<bits/stdc++.h>
using namespace std;
#define s second
#define f first
#define pb push_back
//#define int long long
//#define double long double
int n,k;
int a[200005];
unordered_map<int,int>mp;
unordered_map<int,int>mp2;
int mx,mxi;
bool okk;
void fun(int ii,int s,int e)
{
    if(okk) return;
    e=min(e,n+k-1);
    s=max(0,s);
    for(int i=s;i<=e;i++)
    {
        if(i==ii) continue;
        mp[a[ii]+a[i]]++;
        if(mp[a[ii]+a[i]]>mx)
        {
            mx=mp[a[ii]+a[i]];
            mxi=a[ii]+a[i];
        }
        if(mp[a[ii]+a[i]]>=n)
        {
            okk=1;
            break;
        }
    }
}
signed main()
{
  scanf("%d%d",&n,&k);
  for(int i=0;i<n+k;i++)
  {
      scanf("%d",a+i);
      mp2[a[i]]=1;
  }
  sort(a,a+n+k);
  for(int i=0;i<n+1&&!okk;i++)
  {
      fun(i,(n+k-1-i)-k-1,(n+k-1-i)+k+1);
  }
  vector<int>ans;
  int cnt=n;
  for(int i=0;i<n+k;i++)
  {
      if(mp2[mxi-a[i]])
      {
          cnt-=2;
          ans.pb(a[i]);
          ans.pb(mxi-a[i]);
      }
      if(cnt==0) break;
  }
  sort(ans.begin(),ans.end());
  for(int i=0;i<ans.size();i++)
  {
      if(i) printf(" ");
      printf("%d",ans[i]);
  }
     return 0;
}

Compilation message

tabletennis.cpp: In function 'int main()':
tabletennis.cpp:61:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |   for(int i=0;i<ans.size();i++)
      |               ~^~~~~~~~~~~
tabletennis.cpp:37:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   37 |   scanf("%d%d",&n,&k);
      |   ~~~~~^~~~~~~~~~~~~~
tabletennis.cpp:40:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   40 |       scanf("%d",a+i);
      |       ~~~~~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 492 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 492 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 1644 KB Output is correct
2 Correct 150 ms 11828 KB Output is correct
3 Correct 160 ms 11700 KB Output is correct
4 Correct 143 ms 11828 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 10676 KB Output is correct
2 Correct 165 ms 11188 KB Output is correct
3 Correct 162 ms 10716 KB Output is correct
4 Correct 144 ms 11188 KB Output is correct

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Incorrect 4 ms 876 KB Unexpected end of file - int32 expected
3 Halted 0 ms 0 KB -

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct

Subtask #6
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 6 ms 492 KB Output is correct
3 Correct 12 ms 2156 KB Output is correct
4 Correct 8 ms 620 KB Output is correct
5 Correct 6 ms 492 KB Output is correct
6 Incorrect 5 ms 492 KB Output not subsequence of input

Subtask #7
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1143 ms 18844 KB Output is correct
3 Correct 521 ms 18740 KB Output is correct
4 Correct 383 ms 10932 KB Output is correct
5 Correct 441 ms 18100 KB Output is correct
6 Incorrect 377 ms 10804 KB Output not subsequence of input
7 Halted 0 ms 0 KB -

Subtask #8
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 876 KB Output is correct
2 Execution timed out 3104 ms 126256 KB Time limit exceeded
3 Halted 0 ms 0 KB -