Submission #2520453


Source Code Expand

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <vector>
#define repi(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,a) repi(i,0,a)
#define clr(a,v) memset((a),(v),sizeof(a))

int N, D[55], b[55];
int cnt[55];

int main()
{
  scanf( "%d", &N );
  rep( i, N )
    scanf( "%d", D+i ), ++cnt[D[i]];

  int ans = 1;

  if( N >= 14 )
  {
    if( cnt[0] >= 1 || cnt[12] >= 2 )
      ans = 0;

    repi( i, 1, 12 ) if( cnt[i] >= 3 )
      ans = 0;
  }
  else
  {
    ans = 0;
    D[N] = 0;
    for( int i = 0; i <= (1<<14); ++i )
    {
      int mi = 1<<30;
      rep( j, N+1 )
        b[j] = D[j]+(i>>j&1?24-2*D[j]:0);

      rep( j, N+1 ) rep( k, N+1 ) if( j != k )
        mi = std::min( mi, std::min( abs(b[k]-b[j]), 24-abs(b[k]-b[j]) ) );

      ans = std::max( ans, mi );
    }
  }

  if( N == 1 )
    ans = std::min( D[0], 24-D[0] );

  printf( "%d\n", ans );

  return 0;
}

Submission Info

Submission Time
Task C - Time Gap
User As_sqr
Language C++14 (GCC 5.4.1)
Score 500
Code Size 962 Byte
Status AC
Exec Time 7 ms
Memory 128 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:15:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf( "%d", &N );
                    ^
./Main.cpp:17:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf( "%d", D+i ), ++cnt[D[i]];
                                    ^

Judge Result

Set Name sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 49
Set Name Test Cases
sample sample-01.txt, sample-02.txt, sample-03.txt
All sample-01.txt, sample-02.txt, sample-03.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 01-27.txt, 01-28.txt, 01-29.txt, 01-30.txt, 01-31.txt, 01-32.txt, 01-33.txt, 01-34.txt, 01-35.txt, 01-36.txt, 01-37.txt, 01-38.txt, 01-39.txt, 01-40.txt, 01-41.txt, 01-42.txt, 01-43.txt, sample-01.txt, sample-02.txt, sample-03.txt
Case Name Status Exec Time Memory
01-01.txt AC 1 ms 128 KB
01-02.txt AC 1 ms 128 KB
01-03.txt AC 1 ms 128 KB
01-04.txt AC 1 ms 128 KB
01-05.txt AC 2 ms 128 KB
01-06.txt AC 2 ms 128 KB
01-07.txt AC 3 ms 128 KB
01-08.txt AC 4 ms 128 KB
01-09.txt AC 4 ms 128 KB
01-10.txt AC 5 ms 128 KB
01-11.txt AC 6 ms 128 KB
01-12.txt AC 7 ms 128 KB
01-13.txt AC 1 ms 128 KB
01-14.txt AC 1 ms 128 KB
01-15.txt AC 1 ms 128 KB
01-16.txt AC 1 ms 128 KB
01-17.txt AC 1 ms 128 KB
01-18.txt AC 1 ms 128 KB
01-19.txt AC 1 ms 128 KB
01-20.txt AC 1 ms 128 KB
01-21.txt AC 1 ms 128 KB
01-22.txt AC 1 ms 128 KB
01-23.txt AC 1 ms 128 KB
01-24.txt AC 1 ms 128 KB
01-25.txt AC 1 ms 128 KB
01-26.txt AC 1 ms 128 KB
01-27.txt AC 2 ms 128 KB
01-28.txt AC 2 ms 128 KB
01-29.txt AC 2 ms 128 KB
01-30.txt AC 2 ms 128 KB
01-31.txt AC 3 ms 128 KB
01-32.txt AC 3 ms 128 KB
01-33.txt AC 4 ms 128 KB
01-34.txt AC 4 ms 128 KB
01-35.txt AC 5 ms 128 KB
01-36.txt AC 6 ms 128 KB
01-37.txt AC 7 ms 128 KB
01-38.txt AC 7 ms 128 KB
01-39.txt AC 1 ms 128 KB
01-40.txt AC 1 ms 128 KB
01-41.txt AC 1 ms 128 KB
01-42.txt AC 1 ms 128 KB
01-43.txt AC 1 ms 128 KB
sample-01.txt AC 1 ms 128 KB
sample-02.txt AC 1 ms 128 KB
sample-03.txt AC 1 ms 128 KB