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답안 #724483

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
724483 2023-04-15T11:31:26 Z Dan4Life 꿈 (IOI13_dreaming) C++17
59 / 100
 1000 ms 16076 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);
    for(int i = sz(v)-2; i>=0; i--)
        if(v[i]<v[i+1])swap(v[i],v[i+1]);
    if(sz(v)==4) 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;
    sort(all(v));
    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

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 15184 KB Output is correct
2 Correct 45 ms 15052 KB Output is correct
3 Correct 30 ms 10700 KB Output is correct
4 Correct 7 ms 4436 KB Output is correct
5 Correct 6 ms 3632 KB Output is correct
6 Correct 13 ms 5332 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 22 ms 6716 KB Output is correct
9 Correct 34 ms 8604 KB Output is correct
10 Correct 2 ms 2748 KB Output is correct
11 Correct 41 ms 10216 KB Output is correct
12 Correct 56 ms 12752 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 3 ms 2680 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 2 ms 2644 KB Output is correct
12 Correct 2 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 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 1 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 1 ms 2644 KB Output is correct
22 Correct 1 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

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 15184 KB Output is correct
2 Correct 45 ms 15052 KB Output is correct
3 Correct 30 ms 10700 KB Output is correct
4 Correct 7 ms 4436 KB Output is correct
5 Correct 6 ms 3632 KB Output is correct
6 Correct 13 ms 5332 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 22 ms 6716 KB Output is correct
9 Correct 34 ms 8604 KB Output is correct
10 Correct 2 ms 2748 KB Output is correct
11 Correct 41 ms 10216 KB Output is correct
12 Correct 56 ms 12752 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 1 ms 2644 KB Output is correct
18 Correct 3 ms 2680 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 2 ms 2644 KB Output is correct
25 Correct 2 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 1 ms 2644 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 1 ms 2644 KB Output is correct
33 Correct 1 ms 2644 KB Output is correct
34 Correct 1 ms 2644 KB Output is correct
35 Correct 1 ms 2644 KB Output is correct
36 Correct 1 ms 2644 KB Output is correct
37 Correct 1 ms 2644 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct
39 Correct 48 ms 15052 KB Output is correct
40 Correct 46 ms 14992 KB Output is correct
41 Correct 29 ms 10760 KB Output is correct
42 Correct 7 ms 4452 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 1 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 2 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 1 ms 2644 KB Output is correct
52 Correct 1 ms 2644 KB Output is correct
53 Correct 1 ms 2644 KB Output is correct
54 Correct 2 ms 2644 KB Output is correct
55 Correct 1 ms 2644 KB Output is correct
56 Correct 2 ms 2644 KB Output is correct
57 Correct 63 ms 8592 KB Output is correct
58 Correct 69 ms 8584 KB Output is correct
59 Correct 68 ms 8524 KB Output is correct
60 Correct 71 ms 8592 KB Output is correct
61 Correct 63 ms 8420 KB Output is correct
62 Correct 70 ms 8396 KB Output is correct
63 Correct 48 ms 8268 KB Output is correct
64 Correct 51 ms 8260 KB Output is correct
65 Correct 46 ms 8268 KB Output is correct
66 Correct 52 ms 8264 KB Output is correct
67 Correct 64 ms 8532 KB Output is correct
68 Correct 56 ms 8524 KB Output is correct
69 Correct 64 ms 8468 KB Output is correct
70 Correct 56 ms 8428 KB Output is correct
71 Correct 1 ms 2644 KB Output is correct
72 Correct 3 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 2 ms 2772 KB Output is correct
76 Correct 3 ms 2840 KB Output is correct
77 Correct 2 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 58 ms 8496 KB Output is correct
81 Correct 62 ms 8396 KB Output is correct
82 Correct 49 ms 8396 KB Output is correct
83 Correct 56 ms 8440 KB Output is correct
84 Correct 2 ms 2900 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 2 ms 2772 KB Output is correct
89 Correct 3 ms 2832 KB Output is correct
90 Correct 3 ms 2772 KB Output is correct
91 Correct 3 ms 2772 KB Output is correct
92 Correct 3 ms 2772 KB Output is correct
93 Correct 3 ms 2772 KB Output is correct
94 Correct 1 ms 2644 KB Output is correct
95 Correct 2 ms 2644 KB Output is correct
96 Correct 2 ms 2644 KB Output is correct
97 Correct 2 ms 2648 KB Output is correct
98 Correct 2 ms 2644 KB Output is correct
99 Correct 2 ms 2644 KB Output is correct
100 Correct 1 ms 2644 KB Output is correct
101 Correct 2 ms 2644 KB Output is correct
102 Correct 2 ms 2644 KB Output is correct
103 Correct 2 ms 2644 KB Output is correct
104 Correct 6 ms 3540 KB Output is correct
105 Correct 15 ms 5332 KB Output is correct
106 Correct 1 ms 2644 KB Output is correct
107 Correct 23 ms 6788 KB Output is correct
108 Correct 30 ms 8744 KB Output is correct
109 Correct 2 ms 2644 KB Output is correct
110 Correct 45 ms 10232 KB Output is correct
111 Correct 57 ms 12660 KB Output is correct
112 Correct 2 ms 2772 KB Output is correct
113 Correct 74 ms 16076 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1070 ms 5620 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 1 ms 2644 KB Output is correct
4 Correct 1 ms 2644 KB Output is correct
5 Correct 3 ms 2680 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 2 ms 2644 KB Output is correct
12 Correct 2 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 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 1 ms 2644 KB Output is correct
20 Correct 1 ms 2644 KB Output is correct
21 Correct 1 ms 2644 KB Output is correct
22 Correct 1 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 2 ms 2644 KB Output is correct
27 Correct 3 ms 2772 KB Output is correct
28 Correct 4 ms 2772 KB Output is correct
29 Correct 2 ms 2644 KB Output is correct
30 Correct 2 ms 2772 KB Output is correct
31 Correct 3 ms 2772 KB Output is correct
32 Correct 2 ms 2676 KB Output is correct
33 Correct 3 ms 2784 KB Output is correct
34 Correct 3 ms 2772 KB Output is correct
35 Correct 1 ms 2644 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 1 ms 2644 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct
39 Correct 1 ms 2644 KB Output is correct
40 Correct 2 ms 2644 KB Output is correct
41 Correct 1 ms 2644 KB Output is correct
42 Correct 2 ms 2644 KB Output is correct
43 Correct 1 ms 2644 KB Output is correct
44 Correct 2 ms 2644 KB Output is correct
45 Correct 2 ms 2644 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 2 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 1 ms 2644 KB Output is correct
51 Correct 1 ms 2644 KB Output is correct
52 Correct 2 ms 2644 KB Output is correct
53 Correct 1 ms 2644 KB Output is correct
54 Correct 3 ms 3028 KB Output is correct
55 Correct 4 ms 3028 KB Output is correct
56 Correct 5 ms 2772 KB Output is correct
57 Correct 7 ms 2644 KB Output is correct
58 Correct 3 ms 2772 KB Output is correct
59 Correct 3 ms 2772 KB Output is correct
60 Correct 6 ms 2668 KB Output is correct
61 Correct 7 ms 2744 KB Output is correct
62 Correct 3 ms 2772 KB Output is correct
63 Correct 3 ms 2772 KB Output is correct
64 Correct 7 ms 2644 KB Output is correct
65 Correct 5 ms 2772 KB Output is correct
66 Correct 3 ms 2772 KB Output is correct
67 Correct 3 ms 2772 KB Output is correct
68 Correct 4 ms 2772 KB Output is correct
69 Correct 5 ms 2772 KB Output is correct
70 Correct 6 ms 2704 KB Output is correct
71 Correct 6 ms 2760 KB Output is correct
72 Correct 3 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 2 ms 2772 KB Output is correct
78 Correct 6 ms 2760 KB Output is correct
79 Correct 6 ms 2644 KB Output is correct
80 Correct 9 ms 2644 KB Output is correct
81 Correct 8 ms 2644 KB Output is correct
82 Correct 3 ms 2772 KB Output is correct
83 Correct 3 ms 2772 KB Output is correct
84 Correct 6 ms 2644 KB Output is correct
85 Correct 9 ms 2644 KB Output is correct
86 Correct 4 ms 2768 KB Output is correct
87 Correct 3 ms 2772 KB Output is correct
88 Correct 5 ms 2772 KB Output is correct
89 Correct 6 ms 2772 KB Output is correct
90 Correct 6 ms 2772 KB Output is correct
91 Correct 6 ms 2644 KB Output is correct
92 Correct 2 ms 2772 KB Output is correct
93 Correct 2 ms 2772 KB Output is correct
94 Correct 2 ms 2772 KB Output is correct
95 Correct 2 ms 2772 KB Output is correct
96 Correct 2 ms 2772 KB Output is correct
97 Correct 3 ms 2772 KB Output is correct
98 Correct 2 ms 2772 KB Output is correct
99 Correct 3 ms 2772 KB Output is correct
100 Correct 3 ms 2772 KB Output is correct
101 Correct 2 ms 2772 KB Output is correct
102 Correct 2 ms 2644 KB Output is correct
103 Correct 2 ms 2644 KB Output is correct
104 Correct 2 ms 2688 KB Output is correct
105 Correct 1 ms 2644 KB Output is correct
106 Correct 1 ms 2644 KB Output is correct
107 Correct 2 ms 2644 KB Output is correct
108 Correct 2 ms 2644 KB Output is correct
109 Correct 2 ms 2644 KB Output is correct
110 Correct 2 ms 2644 KB Output is correct
111 Correct 1 ms 2644 KB Output is correct
112 Correct 1 ms 2644 KB Output is correct
113 Correct 2 ms 2644 KB Output is correct
114 Correct 2 ms 2772 KB Output is correct

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 15184 KB Output is correct
2 Correct 45 ms 15052 KB Output is correct
3 Correct 30 ms 10700 KB Output is correct
4 Correct 7 ms 4436 KB Output is correct
5 Correct 6 ms 3632 KB Output is correct
6 Correct 13 ms 5332 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 22 ms 6716 KB Output is correct
9 Correct 34 ms 8604 KB Output is correct
10 Correct 2 ms 2748 KB Output is correct
11 Correct 41 ms 10216 KB Output is correct
12 Correct 56 ms 12752 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 2 ms 2644 KB Output is correct
15 Correct 2 ms 2644 KB Output is correct
16 Correct 1 ms 2644 KB Output is correct
17 Correct 1 ms 2644 KB Output is correct
18 Correct 3 ms 2680 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 2 ms 2644 KB Output is correct
25 Correct 2 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 1 ms 2644 KB Output is correct
30 Correct 2 ms 2644 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 1 ms 2644 KB Output is correct
33 Correct 1 ms 2644 KB Output is correct
34 Correct 1 ms 2644 KB Output is correct
35 Correct 1 ms 2644 KB Output is correct
36 Correct 1 ms 2644 KB Output is correct
37 Correct 1 ms 2644 KB Output is correct
38 Correct 1 ms 2644 KB Output is correct
39 Correct 48 ms 15052 KB Output is correct
40 Correct 46 ms 14992 KB Output is correct
41 Correct 29 ms 10760 KB Output is correct
42 Correct 7 ms 4452 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 1 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 2 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 1 ms 2644 KB Output is correct
52 Correct 1 ms 2644 KB Output is correct
53 Correct 1 ms 2644 KB Output is correct
54 Correct 2 ms 2644 KB Output is correct
55 Correct 1 ms 2644 KB Output is correct
56 Correct 2 ms 2644 KB Output is correct
57 Correct 63 ms 8592 KB Output is correct
58 Correct 69 ms 8584 KB Output is correct
59 Correct 68 ms 8524 KB Output is correct
60 Correct 71 ms 8592 KB Output is correct
61 Correct 63 ms 8420 KB Output is correct
62 Correct 70 ms 8396 KB Output is correct
63 Correct 48 ms 8268 KB Output is correct
64 Correct 51 ms 8260 KB Output is correct
65 Correct 46 ms 8268 KB Output is correct
66 Correct 52 ms 8264 KB Output is correct
67 Correct 64 ms 8532 KB Output is correct
68 Correct 56 ms 8524 KB Output is correct
69 Correct 64 ms 8468 KB Output is correct
70 Correct 56 ms 8428 KB Output is correct
71 Correct 1 ms 2644 KB Output is correct
72 Correct 3 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 2 ms 2772 KB Output is correct
76 Correct 3 ms 2840 KB Output is correct
77 Correct 2 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 58 ms 8496 KB Output is correct
81 Correct 62 ms 8396 KB Output is correct
82 Correct 49 ms 8396 KB Output is correct
83 Correct 56 ms 8440 KB Output is correct
84 Correct 2 ms 2900 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 2 ms 2772 KB Output is correct
89 Correct 3 ms 2832 KB Output is correct
90 Correct 3 ms 2772 KB Output is correct
91 Correct 3 ms 2772 KB Output is correct
92 Correct 3 ms 2772 KB Output is correct
93 Correct 3 ms 2772 KB Output is correct
94 Correct 1 ms 2644 KB Output is correct
95 Correct 2 ms 2644 KB Output is correct
96 Correct 2 ms 2644 KB Output is correct
97 Correct 2 ms 2648 KB Output is correct
98 Correct 2 ms 2644 KB Output is correct
99 Correct 2 ms 2644 KB Output is correct
100 Correct 1 ms 2644 KB Output is correct
101 Correct 2 ms 2644 KB Output is correct
102 Correct 2 ms 2644 KB Output is correct
103 Correct 2 ms 2644 KB Output is correct
104 Correct 6 ms 3540 KB Output is correct
105 Correct 15 ms 5332 KB Output is correct
106 Correct 1 ms 2644 KB Output is correct
107 Correct 23 ms 6788 KB Output is correct
108 Correct 30 ms 8744 KB Output is correct
109 Correct 2 ms 2644 KB Output is correct
110 Correct 45 ms 10232 KB Output is correct
111 Correct 57 ms 12660 KB Output is correct
112 Correct 2 ms 2772 KB Output is correct
113 Correct 74 ms 16076 KB Output is correct
114 Execution timed out 1070 ms 5620 KB Time limit exceeded
115 Halted 0 ms 0 KB -