답안 #45936

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
45936	2018-04-16T14:06:17 Z	TheDarkning	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	57 / 100	1000 ms	7156 KB

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 <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;
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];
         int to = v;
         cnt = 0;

         while( to <= n )
         {
            cnt++;
            to = v + l * cnt;
            if( to > n )  break;
            if( d[ v ] + cnt < d[ to ] )
            {
               d[ to ] = d[ v ] + cnt;
               q.push( mk( -d[ to ], to ) );
            }
         }

         to = v;
         cnt = 0;

         while( to )
         {
            cnt++;
            to = v - l * cnt;
            if( to <= 0 ) break;
            if( d[ v ] + cnt < d[ to ] )
            {
               d[ to ] = d[ v ] + cnt;
               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:104:24: 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

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	4984 KB	Output is correct
2	Correct	5 ms	5096 KB	Output is correct
3	Correct	6 ms	5148 KB	Output is correct
4	Correct	7 ms	5224 KB	Output is correct
5	Correct	6 ms	5224 KB	Output is correct
6	Correct	6 ms	5224 KB	Output is correct
7	Correct	7 ms	5224 KB	Output is correct

Subtask #2

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5316 KB	Output is correct
2	Correct	7 ms	5316 KB	Output is correct
3	Correct	5 ms	5316 KB	Output is correct
4	Correct	6 ms	5316 KB	Output is correct
5	Correct	5 ms	5316 KB	Output is correct
6	Correct	6 ms	5316 KB	Output is correct
7	Correct	5 ms	5316 KB	Output is correct
8	Correct	7 ms	5316 KB	Output is correct
9	Correct	5 ms	5316 KB	Output is correct
10	Correct	6 ms	5316 KB	Output is correct
11	Correct	7 ms	5316 KB	Output is correct
12	Correct	6 ms	5316 KB	Output is correct
13	Correct	6 ms	5348 KB	Output is correct
14	Correct	6 ms	5356 KB	Output is correct
15	Correct	6 ms	5356 KB	Output is correct

Subtask #3

14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5356 KB	Output is correct
2	Correct	6 ms	5356 KB	Output is correct
3	Correct	5 ms	5356 KB	Output is correct
4	Correct	6 ms	5356 KB	Output is correct
5	Correct	7 ms	5376 KB	Output is correct
6	Correct	6 ms	5376 KB	Output is correct
7	Correct	6 ms	5376 KB	Output is correct
8	Correct	7 ms	5376 KB	Output is correct
9	Correct	6 ms	5376 KB	Output is correct
10	Correct	7 ms	5376 KB	Output is correct
11	Correct	7 ms	5376 KB	Output is correct
12	Correct	6 ms	5376 KB	Output is correct
13	Correct	6 ms	5376 KB	Output is correct
14	Correct	6 ms	5376 KB	Output is correct
15	Correct	7 ms	5376 KB	Output is correct
16	Correct	8 ms	5376 KB	Output is correct
17	Correct	6 ms	5376 KB	Output is correct
18	Correct	6 ms	5376 KB	Output is correct
19	Correct	6 ms	5376 KB	Output is correct
20	Correct	20 ms	5376 KB	Output is correct
21	Correct	7 ms	5376 KB	Output is correct
22	Correct	6 ms	5376 KB	Output is correct
23	Correct	7 ms	5376 KB	Output is correct
24	Correct	8 ms	5376 KB	Output is correct
25	Correct	8 ms	5376 KB	Output is correct
26	Correct	8 ms	5412 KB	Output is correct
27	Correct	8 ms	5412 KB	Output is correct
28	Correct	6 ms	5412 KB	Output is correct
29	Correct	7 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	7 ms	5500 KB	Output is correct
33	Correct	10 ms	5504 KB	Output is correct
34	Correct	8 ms	5504 KB	Output is correct

Subtask #4

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5504 KB	Output is correct
2	Correct	5 ms	5504 KB	Output is correct
3	Correct	5 ms	5504 KB	Output is correct
4	Correct	6 ms	5504 KB	Output is correct
5	Correct	6 ms	5504 KB	Output is correct
6	Correct	6 ms	5504 KB	Output is correct
7	Correct	6 ms	5504 KB	Output is correct
8	Correct	6 ms	5504 KB	Output is correct
9	Correct	6 ms	5504 KB	Output is correct
10	Correct	6 ms	5504 KB	Output is correct
11	Correct	6 ms	5504 KB	Output is correct
12	Correct	6 ms	5504 KB	Output is correct
13	Correct	7 ms	5504 KB	Output is correct
14	Correct	6 ms	5504 KB	Output is correct
15	Correct	6 ms	5504 KB	Output is correct
16	Correct	7 ms	5504 KB	Output is correct
17	Correct	6 ms	5504 KB	Output is correct
18	Correct	6 ms	5504 KB	Output is correct
19	Correct	6 ms	5504 KB	Output is correct
20	Correct	18 ms	5504 KB	Output is correct
21	Correct	6 ms	5504 KB	Output is correct
22	Correct	6 ms	5504 KB	Output is correct
23	Correct	6 ms	5504 KB	Output is correct
24	Correct	6 ms	5504 KB	Output is correct
25	Correct	6 ms	5504 KB	Output is correct
26	Correct	6 ms	5504 KB	Output is correct
27	Correct	6 ms	5504 KB	Output is correct
28	Correct	6 ms	5504 KB	Output is correct
29	Correct	9 ms	5504 KB	Output is correct
30	Correct	8 ms	5504 KB	Output is correct
31	Correct	9 ms	5504 KB	Output is correct
32	Correct	7 ms	5504 KB	Output is correct
33	Correct	9 ms	5504 KB	Output is correct
34	Correct	7 ms	5504 KB	Output is correct
35	Correct	13 ms	5624 KB	Output is correct
36	Correct	7 ms	5624 KB	Output is correct
37	Correct	10 ms	5628 KB	Output is correct
38	Correct	13 ms	5628 KB	Output is correct
39	Correct	15 ms	5628 KB	Output is correct
40	Correct	15 ms	5628 KB	Output is correct
41	Correct	12 ms	5628 KB	Output is correct
42	Correct	10 ms	5628 KB	Output is correct
43	Correct	8 ms	5628 KB	Output is correct
44	Correct	22 ms	5628 KB	Output is correct
45	Correct	18 ms	5800 KB	Output is correct
46	Correct	15 ms	5800 KB	Output is correct

Subtask #5

0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5800 KB	Output is correct
2	Correct	6 ms	5800 KB	Output is correct
3	Correct	6 ms	5800 KB	Output is correct
4	Correct	5 ms	5800 KB	Output is correct
5	Correct	5 ms	5800 KB	Output is correct
6	Correct	7 ms	5800 KB	Output is correct
7	Correct	6 ms	5800 KB	Output is correct
8	Correct	6 ms	5800 KB	Output is correct
9	Correct	7 ms	5800 KB	Output is correct
10	Correct	6 ms	5800 KB	Output is correct
11	Correct	7 ms	5800 KB	Output is correct
12	Correct	6 ms	5800 KB	Output is correct
13	Correct	7 ms	5800 KB	Output is correct
14	Correct	8 ms	5800 KB	Output is correct
15	Correct	6 ms	5800 KB	Output is correct
16	Correct	6 ms	5800 KB	Output is correct
17	Correct	8 ms	5800 KB	Output is correct
18	Correct	7 ms	5800 KB	Output is correct
19	Correct	6 ms	5800 KB	Output is correct
20	Correct	18 ms	5800 KB	Output is correct
21	Correct	8 ms	5800 KB	Output is correct
22	Correct	7 ms	5800 KB	Output is correct
23	Correct	6 ms	5800 KB	Output is correct
24	Correct	6 ms	5800 KB	Output is correct
25	Correct	6 ms	5800 KB	Output is correct
26	Correct	6 ms	5800 KB	Output is correct
27	Correct	6 ms	5800 KB	Output is correct
28	Correct	8 ms	5800 KB	Output is correct
29	Correct	9 ms	5800 KB	Output is correct
30	Correct	6 ms	5800 KB	Output is correct
31	Correct	6 ms	5800 KB	Output is correct
32	Correct	7 ms	5800 KB	Output is correct
33	Correct	10 ms	5800 KB	Output is correct
34	Correct	8 ms	5800 KB	Output is correct
35	Correct	14 ms	5800 KB	Output is correct
36	Correct	8 ms	5800 KB	Output is correct
37	Correct	13 ms	5800 KB	Output is correct
38	Correct	13 ms	5884 KB	Output is correct
39	Correct	10 ms	5884 KB	Output is correct
40	Correct	12 ms	5884 KB	Output is correct
41	Correct	12 ms	5884 KB	Output is correct
42	Correct	9 ms	5884 KB	Output is correct
43	Correct	12 ms	5884 KB	Output is correct
44	Correct	25 ms	5884 KB	Output is correct
45	Correct	16 ms	5884 KB	Output is correct
46	Correct	13 ms	5884 KB	Output is correct
47	Correct	15 ms	6392 KB	Output is correct
48	Correct	13 ms	6392 KB	Output is correct
49	Correct	12 ms	6392 KB	Output is correct
50	Correct	9 ms	6392 KB	Output is correct
51	Correct	26 ms	7156 KB	Output is correct
52	Correct	28 ms	7156 KB	Output is correct
53	Correct	15 ms	7156 KB	Output is correct
54	Correct	7 ms	7156 KB	Output is correct
55	Correct	9 ms	7156 KB	Output is correct
56	Execution timed out	1091 ms	7156 KB	Time limit exceeded
57	Halted	0 ms	0 KB	-