oj.uz

Submission #38333

# Submission time Handle Problem Language Result Execution time Memory
38333 2018-01-04T02:06:34 Z funcsr Dreaming (IOI13_dreaming) C++14
47 / 100
 100 ms 15992 KB 
#include "dreaming.h"
#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <queue>
#include <string>
#include <cassert>
using namespace std;
typedef pair<int, int> P;
#define rep(i, n) for (int i=0; i<(n); i++)
#define all(x) x.begin(), x.end()
#define pb push_back
#define INF 1005141919
#define _1 first
#define _2 second

int N, L;
vector<P> G[100000];
bool used[100000];
int dp1[100000], dp2[100000], src[100000];
inline void update(int x, int v, int s) {
  if (v > dp1[x]) dp2[x] = dp1[x], dp1[x] = v, src[x] = s;
  else if (v > dp2[x]) dp2[x] = v;
}
void dfs(int x, int p) {
  used[x] = true;
  dp1[x] = dp2[x] = 0;
  src[x] = -1;
  for (P pp : G[x]) if (pp._1 != p) {
    int t = pp._1, len = pp._2;
    dfs(t, x);
    update(x, dp1[t]+len, t);
  }
}

int diameter = 0;
int dfs2(int x, int p, int plen) {
  if (p != -1) {
    int v = dp1[p];
    if (src[p] == x) v = dp2[p];
    update(x, v+plen, p);
  }
  diameter = max(diameter, dp1[x]+dp2[x]);
  int m = dp1[x];
  for (P pp : G[x]) if (pp._1 != p) {
    int t = pp._1, len = pp._2;
    m = min(m, dfs2(t, x, len));
  }
  return m;
}

bool f(int X, vector<int> &R) {
  int cur_r = R[0];
  for (int i=1; i<R.size(); i++) {
    int r = R[i];
    if (cur_r+r+L > X) return false;
    cur_r = min(max(cur_r, r+L), max(cur_r+L, r));
  }
  return true;
}

int travelTime(int N_, int M, int L_, int A[], int B[], int T[]) {
  N = N_, L = L_;
  rep(i, M) {
    G[A[i]].pb(P(B[i], T[i]));
    G[B[i]].pb(P(A[i], T[i]));
  }
  vector<int> X;
  rep(i, N) if (!used[i]) {
    dfs(i, -1);
    X.pb(dfs2(i, -1, -1));
  }
  //cout<<"{";for(int x:X)cout<<x<<",";cout<<"}\n";
  int lo = diameter-1, hi = INF;
  while (hi-lo > 1) {
    int mid = (lo+hi)/2;
    if (f(mid, X)) hi = mid;
    else lo = mid;
  }
  return hi;
}

Compilation message

dreaming.cpp: In function 'bool f(int, std::vector<int>&)':
dreaming.cpp:55:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i=1; i<R.size(); i++) {
                 ~^~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 11880 KB Output is correct
2 Correct 67 ms 11384 KB Output is correct
3 Correct 46 ms 9976 KB Output is correct
4 Correct 11 ms 3968 KB Output is correct
5 Correct 10 ms 3456 KB Output is correct
6 Correct 16 ms 4736 KB Output is correct
7 Correct 4 ms 2688 KB Output is correct
8 Correct 29 ms 6520 KB Output is correct
9 Correct 36 ms 8568 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 54 ms 9208 KB Output is correct
12 Correct 70 ms 10488 KB Output is correct
13 Correct 4 ms 2816 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 11880 KB Output is correct
2 Correct 67 ms 11384 KB Output is correct
3 Correct 46 ms 9976 KB Output is correct
4 Correct 11 ms 3968 KB Output is correct
5 Correct 10 ms 3456 KB Output is correct
6 Correct 16 ms 4736 KB Output is correct
7 Correct 4 ms 2688 KB Output is correct
8 Correct 29 ms 6520 KB Output is correct
9 Correct 36 ms 8568 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 54 ms 9208 KB Output is correct
12 Correct 70 ms 10488 KB Output is correct
13 Correct 4 ms 2816 KB Output is correct
14 Correct 4 ms 2688 KB Output is correct
15 Correct 4 ms 2688 KB Output is correct
16 Correct 4 ms 2688 KB Output is correct
17 Correct 4 ms 2688 KB Output is correct
18 Correct 4 ms 2688 KB Output is correct
19 Correct 5 ms 2688 KB Output is correct
20 Correct 4 ms 2688 KB Output is correct
21 Correct 4 ms 2688 KB Output is correct
22 Correct 4 ms 2688 KB Output is correct
23 Correct 4 ms 2688 KB Output is correct
24 Correct 5 ms 2688 KB Output is correct
25 Correct 4 ms 2688 KB Output is correct
26 Correct 4 ms 2688 KB Output is correct
27 Correct 4 ms 2688 KB Output is correct
28 Correct 4 ms 2688 KB Output is correct
29 Correct 4 ms 2688 KB Output is correct
30 Correct 4 ms 2688 KB Output is correct
31 Correct 4 ms 2688 KB Output is correct
32 Correct 4 ms 2688 KB Output is correct
33 Correct 4 ms 2736 KB Output is correct
34 Correct 4 ms 2688 KB Output is correct
35 Correct 4 ms 2688 KB Output is correct
36 Correct 4 ms 2688 KB Output is correct
37 Correct 4 ms 2688 KB Output is correct
38 Correct 4 ms 2688 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 11880 KB Output is correct
2 Correct 67 ms 11384 KB Output is correct
3 Correct 46 ms 9976 KB Output is correct
4 Correct 11 ms 3968 KB Output is correct
5 Correct 10 ms 3456 KB Output is correct
6 Correct 16 ms 4736 KB Output is correct
7 Correct 4 ms 2688 KB Output is correct
8 Correct 29 ms 6520 KB Output is correct
9 Correct 36 ms 8568 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 54 ms 9208 KB Output is correct
12 Correct 70 ms 10488 KB Output is correct
13 Correct 4 ms 2816 KB Output is correct
14 Correct 4 ms 2688 KB Output is correct
15 Correct 4 ms 2688 KB Output is correct
16 Correct 4 ms 2688 KB Output is correct
17 Correct 4 ms 2688 KB Output is correct
18 Correct 4 ms 2688 KB Output is correct
19 Correct 5 ms 2688 KB Output is correct
20 Correct 4 ms 2688 KB Output is correct
21 Correct 4 ms 2688 KB Output is correct
22 Correct 4 ms 2688 KB Output is correct
23 Correct 4 ms 2688 KB Output is correct
24 Correct 5 ms 2688 KB Output is correct
25 Correct 4 ms 2688 KB Output is correct
26 Correct 4 ms 2688 KB Output is correct
27 Correct 4 ms 2688 KB Output is correct
28 Correct 4 ms 2688 KB Output is correct
29 Correct 4 ms 2688 KB Output is correct
30 Correct 4 ms 2688 KB Output is correct
31 Correct 4 ms 2688 KB Output is correct
32 Correct 4 ms 2688 KB Output is correct
33 Correct 4 ms 2736 KB Output is correct
34 Correct 4 ms 2688 KB Output is correct
35 Correct 4 ms 2688 KB Output is correct
36 Correct 4 ms 2688 KB Output is correct
37 Correct 4 ms 2688 KB Output is correct
38 Correct 4 ms 2688 KB Output is correct
39 Correct 58 ms 11768 KB Output is correct
40 Correct 77 ms 11456 KB Output is correct
41 Correct 39 ms 10112 KB Output is correct
42 Correct 10 ms 3968 KB Output is correct
43 Correct 4 ms 2688 KB Output is correct
44 Correct 4 ms 2688 KB Output is correct
45 Correct 4 ms 2688 KB Output is correct
46 Correct 4 ms 2688 KB Output is correct
47 Correct 4 ms 2688 KB Output is correct
48 Correct 4 ms 2688 KB Output is correct
49 Correct 4 ms 2688 KB Output is correct
50 Correct 4 ms 2688 KB Output is correct
51 Correct 4 ms 2688 KB Output is correct
52 Correct 3 ms 2688 KB Output is correct
53 Correct 4 ms 2688 KB Output is correct
54 Correct 4 ms 2688 KB Output is correct
55 Correct 4 ms 2688 KB Output is correct
56 Correct 4 ms 2688 KB Output is correct
57 Correct 79 ms 9136 KB Output is correct
58 Correct 76 ms 9080 KB Output is correct
59 Correct 89 ms 9080 KB Output is correct
60 Correct 89 ms 8952 KB Output is correct
61 Correct 71 ms 8948 KB Output is correct
62 Correct 71 ms 8952 KB Output is correct
63 Correct 68 ms 8824 KB Output is correct
64 Correct 68 ms 8796 KB Output is correct
65 Correct 83 ms 8952 KB Output is correct
66 Correct 81 ms 8840 KB Output is correct
67 Correct 74 ms 9080 KB Output is correct
68 Correct 75 ms 9080 KB Output is correct
69 Correct 100 ms 9080 KB Output is correct
70 Correct 92 ms 8952 KB Output is correct
71 Correct 4 ms 2688 KB Output is correct
72 Correct 5 ms 2944 KB Output is correct
73 Correct 5 ms 2944 KB Output is correct
74 Correct 5 ms 2816 KB Output is correct
75 Correct 5 ms 2816 KB Output is correct
76 Correct 5 ms 2944 KB Output is correct
77 Correct 5 ms 2944 KB Output is correct
78 Correct 5 ms 2944 KB Output is correct
79 Correct 5 ms 2944 KB Output is correct
80 Correct 70 ms 8956 KB Output is correct
81 Correct 83 ms 9080 KB Output is correct
82 Correct 70 ms 8900 KB Output is correct
83 Correct 67 ms 8952 KB Output is correct
84 Correct 5 ms 2816 KB Output is correct
85 Correct 4 ms 2816 KB Output is correct
86 Correct 7 ms 2816 KB Output is correct
87 Correct 5 ms 2944 KB Output is correct
88 Correct 5 ms 2944 KB Output is correct
89 Correct 6 ms 2944 KB Output is correct
90 Correct 6 ms 2944 KB Output is correct
91 Correct 5 ms 2816 KB Output is correct
92 Correct 5 ms 2944 KB Output is correct
93 Correct 5 ms 2816 KB Output is correct
94 Correct 3 ms 2688 KB Output is correct
95 Correct 4 ms 2688 KB Output is correct
96 Correct 4 ms 2688 KB Output is correct
97 Correct 4 ms 2688 KB Output is correct
98 Correct 4 ms 2688 KB Output is correct
99 Correct 4 ms 2688 KB Output is correct
100 Correct 4 ms 2688 KB Output is correct
101 Correct 4 ms 2688 KB Output is correct
102 Correct 4 ms 2688 KB Output is correct
103 Correct 4 ms 2688 KB Output is correct
104 Correct 9 ms 3456 KB Output is correct
105 Correct 16 ms 4736 KB Output is correct
106 Correct 4 ms 2688 KB Output is correct
107 Correct 32 ms 6400 KB Output is correct
108 Correct 37 ms 8440 KB Output is correct
109 Correct 4 ms 2816 KB Output is correct
110 Correct 51 ms 9208 KB Output is correct
111 Correct 60 ms 10492 KB Output is correct
112 Correct 4 ms 2816 KB Output is correct
113 Correct 92 ms 15992 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 6528 KB Output is correct
2 Incorrect 34 ms 6648 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 11880 KB Output is correct
2 Correct 67 ms 11384 KB Output is correct
3 Correct 46 ms 9976 KB Output is correct
4 Correct 11 ms 3968 KB Output is correct
5 Correct 10 ms 3456 KB Output is correct
6 Correct 16 ms 4736 KB Output is correct
7 Correct 4 ms 2688 KB Output is correct
8 Correct 29 ms 6520 KB Output is correct
9 Correct 36 ms 8568 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 54 ms 9208 KB Output is correct
12 Correct 70 ms 10488 KB Output is correct
13 Correct 4 ms 2816 KB Output is correct
14 Correct 4 ms 2816 KB Output is correct
15 Correct 7 ms 2816 KB Output is correct
16 Correct 4 ms 2944 KB Output is correct
17 Correct 4 ms 2788 KB Output is correct
18 Correct 5 ms 2816 KB Output is correct
19 Correct 5 ms 2816 KB Output is correct
20 Correct 4 ms 2688 KB Output is correct
21 Incorrect 5 ms 2860 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 11880 KB Output is correct
2 Correct 67 ms 11384 KB Output is correct
3 Correct 46 ms 9976 KB Output is correct
4 Correct 11 ms 3968 KB Output is correct
5 Correct 10 ms 3456 KB Output is correct
6 Correct 16 ms 4736 KB Output is correct
7 Correct 4 ms 2688 KB Output is correct
8 Correct 29 ms 6520 KB Output is correct
9 Correct 36 ms 8568 KB Output is correct
10 Correct 4 ms 2816 KB Output is correct
11 Correct 54 ms 9208 KB Output is correct
12 Correct 70 ms 10488 KB Output is correct
13 Correct 4 ms 2816 KB Output is correct
14 Correct 4 ms 2688 KB Output is correct
15 Correct 4 ms 2688 KB Output is correct
16 Correct 4 ms 2688 KB Output is correct
17 Correct 4 ms 2688 KB Output is correct
18 Correct 4 ms 2688 KB Output is correct
19 Correct 5 ms 2688 KB Output is correct
20 Correct 4 ms 2688 KB Output is correct
21 Correct 4 ms 2688 KB Output is correct
22 Correct 4 ms 2688 KB Output is correct
23 Correct 4 ms 2688 KB Output is correct
24 Correct 5 ms 2688 KB Output is correct
25 Correct 4 ms 2688 KB Output is correct
26 Correct 4 ms 2688 KB Output is correct
27 Correct 4 ms 2688 KB Output is correct
28 Correct 4 ms 2688 KB Output is correct
29 Correct 4 ms 2688 KB Output is correct
30 Correct 4 ms 2688 KB Output is correct
31 Correct 4 ms 2688 KB Output is correct
32 Correct 4 ms 2688 KB Output is correct
33 Correct 4 ms 2736 KB Output is correct
34 Correct 4 ms 2688 KB Output is correct
35 Correct 4 ms 2688 KB Output is correct
36 Correct 4 ms 2688 KB Output is correct
37 Correct 4 ms 2688 KB Output is correct
38 Correct 4 ms 2688 KB Output is correct
39 Correct 58 ms 11768 KB Output is correct
40 Correct 77 ms 11456 KB Output is correct
41 Correct 39 ms 10112 KB Output is correct
42 Correct 10 ms 3968 KB Output is correct
43 Correct 4 ms 2688 KB Output is correct
44 Correct 4 ms 2688 KB Output is correct
45 Correct 4 ms 2688 KB Output is correct
46 Correct 4 ms 2688 KB Output is correct
47 Correct 4 ms 2688 KB Output is correct
48 Correct 4 ms 2688 KB Output is correct
49 Correct 4 ms 2688 KB Output is correct
50 Correct 4 ms 2688 KB Output is correct
51 Correct 4 ms 2688 KB Output is correct
52 Correct 3 ms 2688 KB Output is correct
53 Correct 4 ms 2688 KB Output is correct
54 Correct 4 ms 2688 KB Output is correct
55 Correct 4 ms 2688 KB Output is correct
56 Correct 4 ms 2688 KB Output is correct
57 Correct 79 ms 9136 KB Output is correct
58 Correct 76 ms 9080 KB Output is correct
59 Correct 89 ms 9080 KB Output is correct
60 Correct 89 ms 8952 KB Output is correct
61 Correct 71 ms 8948 KB Output is correct
62 Correct 71 ms 8952 KB Output is correct
63 Correct 68 ms 8824 KB Output is correct
64 Correct 68 ms 8796 KB Output is correct
65 Correct 83 ms 8952 KB Output is correct
66 Correct 81 ms 8840 KB Output is correct
67 Correct 74 ms 9080 KB Output is correct
68 Correct 75 ms 9080 KB Output is correct
69 Correct 100 ms 9080 KB Output is correct
70 Correct 92 ms 8952 KB Output is correct
71 Correct 4 ms 2688 KB Output is correct
72 Correct 5 ms 2944 KB Output is correct
73 Correct 5 ms 2944 KB Output is correct
74 Correct 5 ms 2816 KB Output is correct
75 Correct 5 ms 2816 KB Output is correct
76 Correct 5 ms 2944 KB Output is correct
77 Correct 5 ms 2944 KB Output is correct
78 Correct 5 ms 2944 KB Output is correct
79 Correct 5 ms 2944 KB Output is correct
80 Correct 70 ms 8956 KB Output is correct
81 Correct 83 ms 9080 KB Output is correct
82 Correct 70 ms 8900 KB Output is correct
83 Correct 67 ms 8952 KB Output is correct
84 Correct 5 ms 2816 KB Output is correct
85 Correct 4 ms 2816 KB Output is correct
86 Correct 7 ms 2816 KB Output is correct
87 Correct 5 ms 2944 KB Output is correct
88 Correct 5 ms 2944 KB Output is correct
89 Correct 6 ms 2944 KB Output is correct
90 Correct 6 ms 2944 KB Output is correct
91 Correct 5 ms 2816 KB Output is correct
92 Correct 5 ms 2944 KB Output is correct
93 Correct 5 ms 2816 KB Output is correct
94 Correct 3 ms 2688 KB Output is correct
95 Correct 4 ms 2688 KB Output is correct
96 Correct 4 ms 2688 KB Output is correct
97 Correct 4 ms 2688 KB Output is correct
98 Correct 4 ms 2688 KB Output is correct
99 Correct 4 ms 2688 KB Output is correct
100 Correct 4 ms 2688 KB Output is correct
101 Correct 4 ms 2688 KB Output is correct
102 Correct 4 ms 2688 KB Output is correct
103 Correct 4 ms 2688 KB Output is correct
104 Correct 9 ms 3456 KB Output is correct
105 Correct 16 ms 4736 KB Output is correct
106 Correct 4 ms 2688 KB Output is correct
107 Correct 32 ms 6400 KB Output is correct
108 Correct 37 ms 8440 KB Output is correct
109 Correct 4 ms 2816 KB Output is correct
110 Correct 51 ms 9208 KB Output is correct
111 Correct 60 ms 10492 KB Output is correct
112 Correct 4 ms 2816 KB Output is correct
113 Correct 92 ms 15992 KB Output is correct
114 Correct 28 ms 6528 KB Output is correct
115 Incorrect 34 ms 6648 KB Output isn't correct
116 Halted 0 ms 0 KB -