oj.uz

Submission #45937

# Submission time Handle Problem Language Result Execution time Memory
45937 2018-04-16T14:11:00 Z TheDarkning Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 1000 ms 7152 KB 
/**
                  ▄█▀ ▀█▀ ▄▀▄ █▀ █▄█▄█ ▄▀▄ █▀ ▄█▀
                  <⇋⇋⇋⋛∰≓⊂(⌒,_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 <queue>
#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 = 2e5 + 5;
const int inf = 1e9 + 7;

vector < int > w[N];
priority_queue < pair < int, int > > q;

int n, m, p, b, x, s, cnt, to;
int d[N];

inline int readchar()
{
    int c = getchar();
    while ( c <= 32 )
        c = getchar();

    return c;
}

int readInt()
{
    int c = readchar(), x = 0;
    while ('0' <= c && c <= '9')
        x = x * 10 + c - '0', c = getchar();
    return x;
}

main()
{
   ios::sync_with_stdio(0);
   cin.tie(0);
   cout.tie(0);
   scanf("%d%d", &n, &m);

   for( int i = 1; i <= m; i++ )
   {
      p = readInt();
      b = readInt();

      p++;

      if( i == 1 )
         s = p;
      if( i == 2 )
         x = p;

      w[ p ].pb( b );
   }
   for (int i = 1; i <= n; i ++)
   {
      sort ( w[i].begin(), w[i].end() );
      w[i].erase( unique( w[i].begin(), w[i].end() ), w[i].end() );
   }
   for (int i = 1; i <= n; i ++)
      d[i] = inf;

   d[ s ] = 0;

   q.push( mk( d[s], s ) );

   while( !q.empty() )
   {

      int v = q.top().sc, cur = -q.top().fr;
      q.pop();

      if( cur > d[ v ] ) continue;

      if (v == x)
      {
         printf("%d", d[v]);
         return 0;
      }
      for(int j = 0; j < w[v].size(); j ++)
      {
         int l = w[v][j];

         for( int i = 1; i * l + v <= n; i++ )
         {
            to = v + l * i;
            if( d[ v ] + i < d[ to ] )
            {
               d[ to ] = d[ v ] + i;
               q.push( mk( -d[ to ], to ) );
            }
         }
         for( int i = 1; v - i * l > 0; i++ )
         {
            to = v - l * i;

            if( d[ v ] + i < d[ to ] )
            {
               d[ to ] = d[ v ] + i;
               q.push( mk( -d[ to ], to ) );
            }
         }
      }
   }
   if( d[ x ] == inf )
      puts("-1");
   else
      printf("%d", d[x]);
}

Compilation message

skyscraper.cpp:60:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:106:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int j = 0; j < w[v].size(); j ++)
                      ~~^~~~~~~~~~~~~
skyscraper.cpp:65:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d%d", &n, &m);
    ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4984 KB Output is correct
2 Correct 6 ms 5228 KB Output is correct
3 Correct 6 ms 5228 KB Output is correct
4 Correct 6 ms 5280 KB Output is correct
5 Correct 6 ms 5280 KB Output is correct
6 Correct 7 ms 5280 KB Output is correct
7 Correct 6 ms 5280 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 5304 KB Output is correct
2 Correct 7 ms 5304 KB Output is correct
3 Correct 6 ms 5304 KB Output is correct
4 Correct 5 ms 5304 KB Output is correct
5 Correct 7 ms 5304 KB Output is correct
6 Correct 6 ms 5304 KB Output is correct
7 Correct 5 ms 5304 KB Output is correct
8 Correct 6 ms 5304 KB Output is correct
9 Correct 6 ms 5304 KB Output is correct
10 Correct 6 ms 5304 KB Output is correct
11 Correct 6 ms 5304 KB Output is correct
12 Correct 7 ms 5304 KB Output is correct
13 Correct 8 ms 5304 KB Output is correct
14 Correct 6 ms 5304 KB Output is correct
15 Correct 7 ms 5348 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 5348 KB Output is correct
2 Correct 6 ms 5348 KB Output is correct
3 Correct 7 ms 5348 KB Output is correct
4 Correct 6 ms 5348 KB Output is correct
5 Correct 6 ms 5348 KB Output is correct
6 Correct 6 ms 5348 KB Output is correct
7 Correct 6 ms 5348 KB Output is correct
8 Correct 7 ms 5348 KB Output is correct
9 Correct 6 ms 5348 KB Output is correct
10 Correct 6 ms 5348 KB Output is correct
11 Correct 6 ms 5348 KB Output is correct
12 Correct 7 ms 5372 KB Output is correct
13 Correct 7 ms 5372 KB Output is correct
14 Correct 8 ms 5372 KB Output is correct
15 Correct 6 ms 5372 KB Output is correct
16 Correct 6 ms 5372 KB Output is correct
17 Correct 8 ms 5372 KB Output is correct
18 Correct 6 ms 5372 KB Output is correct
19 Correct 6 ms 5372 KB Output is correct
20 Correct 13 ms 5372 KB Output is correct
21 Correct 6 ms 5372 KB Output is correct
22 Correct 8 ms 5376 KB Output is correct
23 Correct 8 ms 5376 KB Output is correct
24 Correct 8 ms 5376 KB Output is correct
25 Correct 6 ms 5376 KB Output is correct
26 Correct 6 ms 5376 KB Output is correct
27 Correct 8 ms 5376 KB Output is correct
28 Correct 8 ms 5376 KB Output is correct
29 Correct 8 ms 5500 KB Output is correct
30 Correct 8 ms 5500 KB Output is correct
31 Correct 8 ms 5500 KB Output is correct
32 Correct 8 ms 5500 KB Output is correct
33 Correct 11 ms 5500 KB Output is correct
34 Correct 9 ms 5500 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5500 KB Output is correct
2 Correct 6 ms 5500 KB Output is correct
3 Correct 7 ms 5500 KB Output is correct
4 Correct 7 ms 5500 KB Output is correct
5 Correct 7 ms 5500 KB Output is correct
6 Correct 7 ms 5500 KB Output is correct
7 Correct 7 ms 5500 KB Output is correct
8 Correct 6 ms 5500 KB Output is correct
9 Correct 6 ms 5500 KB Output is correct
10 Correct 6 ms 5500 KB Output is correct
11 Correct 6 ms 5500 KB Output is correct
12 Correct 7 ms 5500 KB Output is correct
13 Correct 6 ms 5500 KB Output is correct
14 Correct 6 ms 5500 KB Output is correct
15 Correct 7 ms 5500 KB Output is correct
16 Correct 7 ms 5500 KB Output is correct
17 Correct 7 ms 5500 KB Output is correct
18 Correct 7 ms 5500 KB Output is correct
19 Correct 6 ms 5500 KB Output is correct
20 Correct 11 ms 5500 KB Output is correct
21 Correct 6 ms 5500 KB Output is correct
22 Correct 6 ms 5500 KB Output is correct
23 Correct 6 ms 5500 KB Output is correct
24 Correct 7 ms 5500 KB Output is correct
25 Correct 7 ms 5500 KB Output is correct
26 Correct 6 ms 5500 KB Output is correct
27 Correct 6 ms 5500 KB Output is correct
28 Correct 6 ms 5500 KB Output is correct
29 Correct 7 ms 5500 KB Output is correct
30 Correct 7 ms 5500 KB Output is correct
31 Correct 6 ms 5500 KB Output is correct
32 Correct 7 ms 5500 KB Output is correct
33 Correct 8 ms 5500 KB Output is correct
34 Correct 7 ms 5500 KB Output is correct
35 Correct 10 ms 5632 KB Output is correct
36 Correct 8 ms 5632 KB Output is correct
37 Correct 13 ms 5632 KB Output is correct
38 Correct 16 ms 5632 KB Output is correct
39 Correct 11 ms 5632 KB Output is correct
40 Correct 11 ms 5632 KB Output is correct
41 Correct 13 ms 5632 KB Output is correct
42 Correct 9 ms 5632 KB Output is correct
43 Correct 8 ms 5632 KB Output is correct
44 Correct 14 ms 5632 KB Output is correct
45 Correct 13 ms 5756 KB Output is correct
46 Correct 11 ms 5756 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5756 KB Output is correct
2 Correct 5 ms 5756 KB Output is correct
3 Correct 6 ms 5756 KB Output is correct
4 Correct 5 ms 5756 KB Output is correct
5 Correct 6 ms 5756 KB Output is correct
6 Correct 5 ms 5756 KB Output is correct
7 Correct 5 ms 5756 KB Output is correct
8 Correct 6 ms 5756 KB Output is correct
9 Correct 6 ms 5756 KB Output is correct
10 Correct 5 ms 5756 KB Output is correct
11 Correct 7 ms 5756 KB Output is correct
12 Correct 6 ms 5756 KB Output is correct
13 Correct 5 ms 5756 KB Output is correct
14 Correct 6 ms 5756 KB Output is correct
15 Correct 6 ms 5756 KB Output is correct
16 Correct 6 ms 5756 KB Output is correct
17 Correct 6 ms 5756 KB Output is correct
18 Correct 5 ms 5756 KB Output is correct
19 Correct 7 ms 5756 KB Output is correct
20 Correct 12 ms 5756 KB Output is correct
21 Correct 5 ms 5756 KB Output is correct
22 Correct 5 ms 5756 KB Output is correct
23 Correct 6 ms 5756 KB Output is correct
24 Correct 7 ms 5756 KB Output is correct
25 Correct 6 ms 5756 KB Output is correct
26 Correct 6 ms 5756 KB Output is correct
27 Correct 6 ms 5756 KB Output is correct
28 Correct 6 ms 5756 KB Output is correct
29 Correct 7 ms 5756 KB Output is correct
30 Correct 6 ms 5756 KB Output is correct
31 Correct 6 ms 5756 KB Output is correct
32 Correct 6 ms 5756 KB Output is correct
33 Correct 8 ms 5756 KB Output is correct
34 Correct 7 ms 5756 KB Output is correct
35 Correct 12 ms 5756 KB Output is correct
36 Correct 6 ms 5756 KB Output is correct
37 Correct 9 ms 5756 KB Output is correct
38 Correct 12 ms 5756 KB Output is correct
39 Correct 11 ms 5756 KB Output is correct
40 Correct 10 ms 5756 KB Output is correct
41 Correct 12 ms 5756 KB Output is correct
42 Correct 9 ms 5756 KB Output is correct
43 Correct 9 ms 5756 KB Output is correct
44 Correct 15 ms 5756 KB Output is correct
45 Correct 13 ms 5756 KB Output is correct
46 Correct 12 ms 5756 KB Output is correct
47 Correct 13 ms 6392 KB Output is correct
48 Correct 13 ms 6392 KB Output is correct
49 Correct 11 ms 6392 KB Output is correct
50 Correct 13 ms 6392 KB Output is correct
51 Correct 24 ms 7152 KB Output is correct
52 Correct 25 ms 7152 KB Output is correct
53 Correct 14 ms 7152 KB Output is correct
54 Correct 7 ms 7152 KB Output is correct
55 Correct 8 ms 7152 KB Output is correct
56 Execution timed out 1076 ms 7152 KB Time limit exceeded
57 Halted 0 ms 0 KB -