Submission #45748

#	Time	Username	Problem	Language	Result	Execution time	Memory
45748		TheDarkning	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	0 / 100	4 ms	1024 KiB

skyscraper

/**
                  ▄█▀ ▀█▀ ▄▀▄ █▀ █▄█▄█ ▄▀▄ █▀ ▄█▀
                  <⇋⇋⇋⋛∰≓⊂(⌒,_ゝ⌒)⊃≓∰⋛⇋⇋⇋>

            ♔♕♖♗♘♙ ☜❷☞✪ ィℋ६ ≈ ᗫẵℜℵĬŊĞ ✪☜❷☞ ♚♛♜♝♞♟
            ♔♕♖♗♘♙                             ♚♛♜♝♞♟
                      ˙·٠•●♥ Ƹ̵̡Ӝ̵̨̄Ʒ ♥●•٠·˙
**/

#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <time.h>
#include <map>
#include <deque>
#include <string>
#include <memory.h>
#include <set>
#include <assert.h>

#define sz(s) s.size()
#define pb push_back
#define fr first
#define sc second
#define mk make_pair
#define all(s) s.begin(), s.end()

using namespace std;

const int N = 1e6 + 5;
const int inf = 1e9 + 7;

long long n, m, p, b, cnt, dp[ 2000 ][ 2000 ];

main()
{
   scanf("%d%d", &n, &m);

   for( int i = 1; i <= n; i++ )
      for( int j = 1; j <= n; j++ )
         dp[ i ][ j ] = inf;

   for( int i = 1; i <= m; i++ )
   {
      scanf("%d%d", &p, &b);
      p++;
      cnt = 0;
      for( int j = p; j <= n; j += b )
      {
         dp[p][ j ] = min( dp[p][ j ], cnt );
         cnt++;
      }
      cnt = 0;
      for( int j = p - b; j > 0; j -= b )
      {
         cnt++;
         dp[p][j] = min ( dp[p][j], cnt );
      }
   }
   for( int i = 1; i <= n; i++ )
   {
      for( int j = 1; j <= n; j++ )
      {
         for( int k = 1; k <= n; k++ )
            dp[i][j] = min( dp[i][j], dp[i][k] + dp[k][j] );
      }
   }
   if( n == 1 )
      assert( 0 );

   if( dp[1][2] == inf )
      dp[1][2] = -1;

   cout << dp[1][2];
}

Compilation message (stderr)

skyscraper.cpp:37:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:39:24: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
    scanf("%d%d", &n, &m);
                  ~~    ^
skyscraper.cpp:39:24: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
skyscraper.cpp:47:27: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
       scanf("%d%d", &p, &b);
                     ~~    ^
skyscraper.cpp:47:27: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
skyscraper.cpp:39:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d%d", &n, &m);
    ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:47:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d%d", &p, &b);
       ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 12
• Subtask 3: 0 / 14
• Subtask 4: 0 / 21
• Subtask 5: 0 / 43