답안 #45948 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
45948	2018-04-16T14:22:32 Z	TheDarkning	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	990 ms	10212 KB

skyscraper

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

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

**/

#include <bits/stdc++.h>

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

using namespace std;

const int N = 2e5 + 5;
const int inf = 1e15 + 7;

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

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

main()
{
   ios::sync_with_stdio(0);
   cin.tie(0);
   cout.tie(0);

   scanf("%lld%lld", &n, &m);

   for( int i = 1; i <= m; i++ )
   {
      scanf("%lld%lld", &p, &b);
      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("%lld", d[v]);
         return 0;
      }
      for( auto l : w[v] )
      {
         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; i * l <= v; 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("%lld", d[x]);
}

Compilation message

skyscraper.cpp:32:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:38:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%lld%lld", &n, &m);
    ~~~~~^~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:42:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%lld%lld", &p, &b);
       ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	4944 KB	Output is correct
2	Correct	6 ms	5092 KB	Output is correct
3	Correct	5 ms	5092 KB	Output is correct
4	Correct	5 ms	5184 KB	Output is correct
5	Correct	5 ms	5220 KB	Output is correct
6	Correct	5 ms	5220 KB	Output is correct
7	Correct	6 ms	5220 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	5220 KB	Output is correct
2	Correct	6 ms	5220 KB	Output is correct
3	Correct	5 ms	5220 KB	Output is correct
4	Correct	6 ms	5296 KB	Output is correct
5	Correct	5 ms	5296 KB	Output is correct
6	Correct	5 ms	5296 KB	Output is correct
7	Correct	6 ms	5296 KB	Output is correct
8	Correct	5 ms	5296 KB	Output is correct
9	Correct	7 ms	5296 KB	Output is correct
10	Correct	7 ms	5296 KB	Output is correct
11	Correct	8 ms	5372 KB	Output is correct
12	Correct	6 ms	5372 KB	Output is correct
13	Correct	6 ms	5376 KB	Output is correct
14	Correct	6 ms	5496 KB	Output is correct
15	Correct	6 ms	5496 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	5496 KB	Output is correct
2	Correct	6 ms	5496 KB	Output is correct
3	Correct	5 ms	5496 KB	Output is correct
4	Correct	5 ms	5496 KB	Output is correct
5	Correct	5 ms	5496 KB	Output is correct
6	Correct	5 ms	5496 KB	Output is correct
7	Correct	6 ms	5496 KB	Output is correct
8	Correct	6 ms	5496 KB	Output is correct
9	Correct	7 ms	5496 KB	Output is correct
10	Correct	5 ms	5496 KB	Output is correct
11	Correct	6 ms	5496 KB	Output is correct
12	Correct	6 ms	5496 KB	Output is correct
13	Correct	6 ms	5496 KB	Output is correct
14	Correct	6 ms	5496 KB	Output is correct
15	Correct	6 ms	5496 KB	Output is correct
16	Correct	5 ms	5496 KB	Output is correct
17	Correct	6 ms	5496 KB	Output is correct
18	Correct	6 ms	5496 KB	Output is correct
19	Correct	6 ms	5496 KB	Output is correct
20	Correct	11 ms	5496 KB	Output is correct
21	Correct	6 ms	5496 KB	Output is correct
22	Correct	6 ms	5496 KB	Output is correct
23	Correct	6 ms	5496 KB	Output is correct
24	Correct	7 ms	5496 KB	Output is correct
25	Correct	8 ms	5496 KB	Output is correct
26	Correct	6 ms	5496 KB	Output is correct
27	Correct	8 ms	5496 KB	Output is correct
28	Correct	6 ms	5496 KB	Output is correct
29	Correct	7 ms	5756 KB	Output is correct
30	Correct	6 ms	5756 KB	Output is correct
31	Correct	7 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

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5756 KB	Output is correct
2	Correct	6 ms	5756 KB	Output is correct
3	Correct	6 ms	5756 KB	Output is correct
4	Correct	6 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	6 ms	5756 KB	Output is correct
8	Correct	5 ms	5756 KB	Output is correct
9	Correct	5 ms	5756 KB	Output is correct
10	Correct	7 ms	5756 KB	Output is correct
11	Correct	6 ms	5756 KB	Output is correct
12	Correct	5 ms	5756 KB	Output is correct
13	Correct	6 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	6 ms	5756 KB	Output is correct
19	Correct	6 ms	5756 KB	Output is correct
20	Correct	12 ms	5756 KB	Output is correct
21	Correct	6 ms	5756 KB	Output is correct
22	Correct	6 ms	5756 KB	Output is correct
23	Correct	7 ms	5756 KB	Output is correct
24	Correct	7 ms	5756 KB	Output is correct
25	Correct	7 ms	5756 KB	Output is correct
26	Correct	7 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	7 ms	5756 KB	Output is correct
32	Correct	8 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	14 ms	5756 KB	Output is correct
36	Correct	7 ms	5756 KB	Output is correct
37	Correct	13 ms	5756 KB	Output is correct
38	Correct	17 ms	5884 KB	Output is correct
39	Correct	17 ms	5884 KB	Output is correct
40	Correct	16 ms	5932 KB	Output is correct
41	Correct	16 ms	5932 KB	Output is correct
42	Correct	13 ms	5932 KB	Output is correct
43	Correct	15 ms	5932 KB	Output is correct
44	Correct	18 ms	5932 KB	Output is correct
45	Correct	17 ms	6012 KB	Output is correct
46	Correct	18 ms	6092 KB	Output is correct

Subtask #5
43.0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	6092 KB	Output is correct
2	Correct	6 ms	6092 KB	Output is correct
3	Correct	6 ms	6092 KB	Output is correct
4	Correct	6 ms	6092 KB	Output is correct
5	Correct	5 ms	6092 KB	Output is correct
6	Correct	6 ms	6092 KB	Output is correct
7	Correct	6 ms	6092 KB	Output is correct
8	Correct	5 ms	6092 KB	Output is correct
9	Correct	6 ms	6092 KB	Output is correct
10	Correct	6 ms	6092 KB	Output is correct
11	Correct	6 ms	6092 KB	Output is correct
12	Correct	8 ms	6092 KB	Output is correct
13	Correct	6 ms	6092 KB	Output is correct
14	Correct	6 ms	6092 KB	Output is correct
15	Correct	6 ms	6092 KB	Output is correct
16	Correct	6 ms	6092 KB	Output is correct
17	Correct	6 ms	6092 KB	Output is correct
18	Correct	6 ms	6092 KB	Output is correct
19	Correct	5 ms	6092 KB	Output is correct
20	Correct	12 ms	6092 KB	Output is correct
21	Correct	6 ms	6092 KB	Output is correct
22	Correct	6 ms	6092 KB	Output is correct
23	Correct	6 ms	6092 KB	Output is correct
24	Correct	7 ms	6092 KB	Output is correct
25	Correct	6 ms	6092 KB	Output is correct
26	Correct	6 ms	6092 KB	Output is correct
27	Correct	6 ms	6092 KB	Output is correct
28	Correct	6 ms	6092 KB	Output is correct
29	Correct	8 ms	6092 KB	Output is correct
30	Correct	6 ms	6092 KB	Output is correct
31	Correct	6 ms	6092 KB	Output is correct
32	Correct	6 ms	6092 KB	Output is correct
33	Correct	8 ms	6092 KB	Output is correct
34	Correct	7 ms	6092 KB	Output is correct
35	Correct	14 ms	6092 KB	Output is correct
36	Correct	7 ms	6092 KB	Output is correct
37	Correct	12 ms	6092 KB	Output is correct
38	Correct	16 ms	6092 KB	Output is correct
39	Correct	15 ms	6092 KB	Output is correct
40	Correct	16 ms	6092 KB	Output is correct
41	Correct	17 ms	6092 KB	Output is correct
42	Correct	12 ms	6092 KB	Output is correct
43	Correct	13 ms	6092 KB	Output is correct
44	Correct	17 ms	6092 KB	Output is correct
45	Correct	17 ms	6092 KB	Output is correct
46	Correct	16 ms	6092 KB	Output is correct
47	Correct	19 ms	7028 KB	Output is correct
48	Correct	15 ms	7028 KB	Output is correct
49	Correct	14 ms	7028 KB	Output is correct
50	Correct	12 ms	7028 KB	Output is correct
51	Correct	31 ms	8308 KB	Output is correct
52	Correct	30 ms	8308 KB	Output is correct
53	Correct	19 ms	8308 KB	Output is correct
54	Correct	8 ms	8308 KB	Output is correct
55	Correct	8 ms	8308 KB	Output is correct
56	Correct	990 ms	8308 KB	Output is correct
57	Correct	10 ms	8308 KB	Output is correct
58	Correct	16 ms	8308 KB	Output is correct
59	Correct	16 ms	8308 KB	Output is correct
60	Correct	16 ms	8308 KB	Output is correct
61	Correct	16 ms	8308 KB	Output is correct
62	Correct	19 ms	8308 KB	Output is correct
63	Correct	41 ms	8308 KB	Output is correct
64	Correct	38 ms	8308 KB	Output is correct
65	Correct	44 ms	8308 KB	Output is correct
66	Correct	86 ms	10212 KB	Output is correct
67	Correct	50 ms	10212 KB	Output is correct

답안 #45948

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 12.0 / 12.0

Subtask #3 14.0 / 14.0

Subtask #4 21.0 / 21.0

Subtask #5 43.0 / 43.0

Subtask #1
10.0 / 10.0

Subtask #2
12.0 / 12.0

Subtask #3
14.0 / 14.0

Subtask #4
21.0 / 21.0

Subtask #5
43.0 / 43.0