oj.uz

Submission #724482

# Submission time Handle Problem Language Result Execution time Memory
724482 2023-04-15T11:30:29 Z Dan4Life Dreaming (IOI13_dreaming) C++17
47 / 100
 1000 ms 16088 KB 
#include "dreaming.h"
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
const int mxN = (int)1e5+10;
const int INF = (int)1e9;
int n, m, l,CC=1,ans2;
vector<int> path, v;
int vis[mxN], dis[mxN];
vector<pair<int,int>> adj[mxN];

bool dfs2(int s, int p, int t){
    if(s==t) return 1;
    for(auto x : adj[s]){
        int u = x.fi, w = x.se;
        if(u==p) continue;
        if(dfs2(u,s,t)){ path.pb(w); return 1; }
    }
    return 0;
}

void dfs(int s, int p){
    vis[s]=CC;
    for(auto x : adj[s]){
        int u = x.fi, w = x.se;
        if(u==p) continue;
        dis[u] = dis[s]+w; dfs(u,s);
    }
}

void calcDiam(int s){
    int a, b, mx = 0;
    dis[s]=0; dfs(s,-1);
    for(int i = 1; i <= n; i++)
        if(vis[i]==CC and mx<=dis[i]) mx=dis[i],a=i;
    dis[a]=0; mx = 0; dfs(a,-1);
    for(int i = 1; i <= n; i++)
        if(vis[i]==CC and mx<=dis[i]) mx=dis[i],b=i;
    path.clear(); dfs2(a,-1,b);
    int dis1 = accumulate(all(path),0), dis2 = 0;
    int ans = dis1; ans2 = max(ans2, dis1);
    for(auto u : path){
        dis1-=u, dis2+=u;
        ans = min(ans, max(dis1,dis2));
    }
    v.pb(ans);
    if(sz(v)==4){
        for(int i = sz(v)-2; i>=0; i--)
            if(v[i]<v[i+1])swap(v[i],v[i+1]);
        v.pop_back();
    }
}

int travelTime(int N, int M, int L, int a[], int b[], int c[]) {
    n = N; m = M; l = L;
    for(int i = 0; i < m; i++){
        a[i]++, b[i]++;
        adj[a[i]].pb({b[i],c[i]});
        adj[b[i]].pb({a[i],c[i]});
    }
    for(int i = 1; i <= n; i++)
        if(!vis[i]) calcDiam(i),CC++;
    int ans = INF;
    if(sz(v)==1) return ans2;
    if(sz(v)>=2) ans = v[sz(v)-1]+l+v[sz(v)-2];
    if(sz(v)>=3) ans = max(ans,v[sz(v)-2]+l*2+v[sz(v)-3]);
    return max(ans, ans2);
}

Compilation message

dreaming.cpp: In function 'void calcDiam(int)':
dreaming.cpp:43:23: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
   43 |     path.clear(); dfs2(a,-1,b);
      |                   ~~~~^~~~~~~~
dreaming.cpp:43:23: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 15028 KB Output is correct
2 Correct 45 ms 14948 KB Output is correct
3 Correct 32 ms 10680 KB Output is correct
4 Correct 7 ms 4508 KB Output is correct
5 Correct 8 ms 3580 KB Output is correct
6 Correct 13 ms 5380 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 23 ms 6764 KB Output is correct
9 Correct 32 ms 8708 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 46 ms 10216 KB Output is correct
12 Correct 59 ms 12660 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 1 ms 2644 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 1 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 1 ms 2644 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 15028 KB Output is correct
2 Correct 45 ms 14948 KB Output is correct
3 Correct 32 ms 10680 KB Output is correct
4 Correct 7 ms 4508 KB Output is correct
5 Correct 8 ms 3580 KB Output is correct
6 Correct 13 ms 5380 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 23 ms 6764 KB Output is correct
9 Correct 32 ms 8708 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 46 ms 10216 KB Output is correct
12 Correct 59 ms 12660 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 1 ms 2644 KB Output is correct
24 Correct 1 ms 2644 KB Output is correct
25 Correct 1 ms 2644 KB Output is correct
26 Correct 1 ms 2644 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 1 ms 2644 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 2 ms 2644 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct
39 Correct 47 ms 15048 KB Output is correct
40 Correct 46 ms 15060 KB Output is correct
41 Correct 30 ms 10708 KB Output is correct
42 Correct 7 ms 4436 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 2 ms 2644 KB Output is correct
45 Correct 1 ms 2644 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 1 ms 2644 KB Output is correct
48 Correct 1 ms 2644 KB Output is correct
49 Correct 2 ms 2644 KB Output is correct
50 Correct 2 ms 2644 KB Output is correct
51 Correct 2 ms 2644 KB Output is correct
52 Correct 2 ms 2644 KB Output is correct
53 Correct 2 ms 2644 KB Output is correct
54 Correct 1 ms 2644 KB Output is correct
55 Correct 2 ms 2644 KB Output is correct
56 Correct 2 ms 2644 KB Output is correct
57 Correct 57 ms 8520 KB Output is correct
58 Correct 67 ms 8612 KB Output is correct
59 Correct 69 ms 8532 KB Output is correct
60 Correct 64 ms 8520 KB Output is correct
61 Correct 65 ms 8332 KB Output is correct
62 Correct 58 ms 8344 KB Output is correct
63 Correct 47 ms 8272 KB Output is correct
64 Correct 49 ms 8172 KB Output is correct
65 Correct 50 ms 8272 KB Output is correct
66 Correct 58 ms 8360 KB Output is correct
67 Correct 52 ms 8508 KB Output is correct
68 Correct 53 ms 8424 KB Output is correct
69 Correct 63 ms 8560 KB Output is correct
70 Correct 67 ms 8544 KB Output is correct
71 Correct 1 ms 2644 KB Output is correct
72 Correct 2 ms 2772 KB Output is correct
73 Correct 3 ms 2772 KB Output is correct
74 Correct 3 ms 2772 KB Output is correct
75 Correct 3 ms 2772 KB Output is correct
76 Correct 3 ms 2772 KB Output is correct
77 Correct 3 ms 2772 KB Output is correct
78 Correct 3 ms 2772 KB Output is correct
79 Correct 3 ms 2772 KB Output is correct
80 Correct 56 ms 8440 KB Output is correct
81 Correct 57 ms 8396 KB Output is correct
82 Correct 50 ms 8420 KB Output is correct
83 Correct 56 ms 8432 KB Output is correct
84 Correct 2 ms 2772 KB Output is correct
85 Correct 2 ms 2772 KB Output is correct
86 Correct 2 ms 2772 KB Output is correct
87 Correct 3 ms 2772 KB Output is correct
88 Correct 3 ms 2772 KB Output is correct
89 Correct 3 ms 2772 KB Output is correct
90 Correct 2 ms 2772 KB Output is correct
91 Correct 2 ms 2772 KB Output is correct
92 Correct 3 ms 2772 KB Output is correct
93 Correct 2 ms 2828 KB Output is correct
94 Correct 1 ms 2644 KB Output is correct
95 Correct 2 ms 2644 KB Output is correct
96 Correct 1 ms 2644 KB Output is correct
97 Correct 1 ms 2644 KB Output is correct
98 Correct 2 ms 2584 KB Output is correct
99 Correct 2 ms 2644 KB Output is correct
100 Correct 2 ms 2644 KB Output is correct
101 Correct 1 ms 2644 KB Output is correct
102 Correct 1 ms 2644 KB Output is correct
103 Correct 1 ms 2644 KB Output is correct
104 Correct 7 ms 3560 KB Output is correct
105 Correct 12 ms 5332 KB Output is correct
106 Correct 1 ms 2644 KB Output is correct
107 Correct 23 ms 6708 KB Output is correct
108 Correct 31 ms 8660 KB Output is correct
109 Correct 1 ms 2644 KB Output is correct
110 Correct 46 ms 10200 KB Output is correct
111 Correct 50 ms 12756 KB Output is correct
112 Correct 2 ms 2772 KB Output is correct
113 Correct 73 ms 16088 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1074 ms 5616 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Correct 1 ms 2644 KB Output is correct
11 Correct 1 ms 2644 KB Output is correct
12 Correct 1 ms 2644 KB Output is correct
13 Correct 1 ms 2644 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 1 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 2 ms 2644 KB Output is correct
24 Correct 2 ms 2644 KB Output is correct
25 Correct 1 ms 2644 KB Output is correct
26 Correct 2 ms 2644 KB Output is correct
27 Correct 2 ms 2772 KB Output is correct
28 Correct 3 ms 2772 KB Output is correct
29 Incorrect 2 ms 2644 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 15028 KB Output is correct
2 Correct 45 ms 14948 KB Output is correct
3 Correct 32 ms 10680 KB Output is correct
4 Correct 7 ms 4508 KB Output is correct
5 Correct 8 ms 3580 KB Output is correct
6 Correct 13 ms 5380 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 23 ms 6764 KB Output is correct
9 Correct 32 ms 8708 KB Output is correct
10 Correct 2 ms 2644 KB Output is correct
11 Correct 46 ms 10216 KB Output is correct
12 Correct 59 ms 12660 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 1 ms 2644 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2644 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 1 ms 2644 KB Output is correct
24 Correct 1 ms 2644 KB Output is correct
25 Correct 1 ms 2644 KB Output is correct
26 Correct 1 ms 2644 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2644 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 1 ms 2644 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 2 ms 2644 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct
39 Correct 47 ms 15048 KB Output is correct
40 Correct 46 ms 15060 KB Output is correct
41 Correct 30 ms 10708 KB Output is correct
42 Correct 7 ms 4436 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 2 ms 2644 KB Output is correct
45 Correct 1 ms 2644 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 1 ms 2644 KB Output is correct
48 Correct 1 ms 2644 KB Output is correct
49 Correct 2 ms 2644 KB Output is correct
50 Correct 2 ms 2644 KB Output is correct
51 Correct 2 ms 2644 KB Output is correct
52 Correct 2 ms 2644 KB Output is correct
53 Correct 2 ms 2644 KB Output is correct
54 Correct 1 ms 2644 KB Output is correct
55 Correct 2 ms 2644 KB Output is correct
56 Correct 2 ms 2644 KB Output is correct
57 Correct 57 ms 8520 KB Output is correct
58 Correct 67 ms 8612 KB Output is correct
59 Correct 69 ms 8532 KB Output is correct
60 Correct 64 ms 8520 KB Output is correct
61 Correct 65 ms 8332 KB Output is correct
62 Correct 58 ms 8344 KB Output is correct
63 Correct 47 ms 8272 KB Output is correct
64 Correct 49 ms 8172 KB Output is correct
65 Correct 50 ms 8272 KB Output is correct
66 Correct 58 ms 8360 KB Output is correct
67 Correct 52 ms 8508 KB Output is correct
68 Correct 53 ms 8424 KB Output is correct
69 Correct 63 ms 8560 KB Output is correct
70 Correct 67 ms 8544 KB Output is correct
71 Correct 1 ms 2644 KB Output is correct
72 Correct 2 ms 2772 KB Output is correct
73 Correct 3 ms 2772 KB Output is correct
74 Correct 3 ms 2772 KB Output is correct
75 Correct 3 ms 2772 KB Output is correct
76 Correct 3 ms 2772 KB Output is correct
77 Correct 3 ms 2772 KB Output is correct
78 Correct 3 ms 2772 KB Output is correct
79 Correct 3 ms 2772 KB Output is correct
80 Correct 56 ms 8440 KB Output is correct
81 Correct 57 ms 8396 KB Output is correct
82 Correct 50 ms 8420 KB Output is correct
83 Correct 56 ms 8432 KB Output is correct
84 Correct 2 ms 2772 KB Output is correct
85 Correct 2 ms 2772 KB Output is correct
86 Correct 2 ms 2772 KB Output is correct
87 Correct 3 ms 2772 KB Output is correct
88 Correct 3 ms 2772 KB Output is correct
89 Correct 3 ms 2772 KB Output is correct
90 Correct 2 ms 2772 KB Output is correct
91 Correct 2 ms 2772 KB Output is correct
92 Correct 3 ms 2772 KB Output is correct
93 Correct 2 ms 2828 KB Output is correct
94 Correct 1 ms 2644 KB Output is correct
95 Correct 2 ms 2644 KB Output is correct
96 Correct 1 ms 2644 KB Output is correct
97 Correct 1 ms 2644 KB Output is correct
98 Correct 2 ms 2584 KB Output is correct
99 Correct 2 ms 2644 KB Output is correct
100 Correct 2 ms 2644 KB Output is correct
101 Correct 1 ms 2644 KB Output is correct
102 Correct 1 ms 2644 KB Output is correct
103 Correct 1 ms 2644 KB Output is correct
104 Correct 7 ms 3560 KB Output is correct
105 Correct 12 ms 5332 KB Output is correct
106 Correct 1 ms 2644 KB Output is correct
107 Correct 23 ms 6708 KB Output is correct
108 Correct 31 ms 8660 KB Output is correct
109 Correct 1 ms 2644 KB Output is correct
110 Correct 46 ms 10200 KB Output is correct
111 Correct 50 ms 12756 KB Output is correct
112 Correct 2 ms 2772 KB Output is correct
113 Correct 73 ms 16088 KB Output is correct
114 Execution timed out 1074 ms 5616 KB Time limit exceeded
115 Halted 0 ms 0 KB -