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답안 #337327

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
337327 2020-12-19T18:28:11 Z bigDuck 꿈 (IOI13_dreaming) C++14
47 / 100
 135 ms 23276 KB 
#include "dreaming.h"
#include<bits/stdc++.h>
using namespace std;
#define INIT  ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount
#define int ll




vector<pii> g[100010];
int dp[100010][2];
pii dir[100010][2];



bool v[100010];

int h[100010], c;
int d[100010];


int dfs(int s){
v[s]=true;

for(pii e:g[s]){
    int l=e.sc, u=e.ft;
    if(!v[u]){
        dfs(u);
        if( (dp[u][0]+l)>dp[s][0]){
            dp[s][1]=dp[s][0];
            dp[s][0]=dp[u][0]+l;

            dir[s][1]=dir[s][0];
            dir[s][0]={u, l};
        }
        else{
            if( (dp[u][0]+l)>dp[s][1] ){
                dp[s][1]=dp[u][0]+l;
                dir[s][1]={u, l};
            }
        }
    }

}


return dp[s][0];
}




int dfs2(int s, int up){
int ac=dp[s][0];

if(ac<=up ){
    return ac;
}
int l=dir[s][0].sc;
int r=dfs2(dir[s][0].ft, max(up+l, dp[s][1]+l) );


if( ( max(r , max(up+l, dp[s][1]+l) )<max(up, dp[s][0])  )   ){
    return max(r, max(up+l, dp[s][1]+l));
}
else{
    return max(up, dp[s][0]);
}

}



bool v2[100010];

pii diam(int s){
    v2[s]=true;

    pii r={0, s};
    for(pii e:g[s]){
        int u=e.ft, l=e.sc;
        if(!v2[u]){
            pii p=diam(u); p.ft+=l;
            if(p.ft>=r.ft){
                r=p;
            }
        }
    }
    v2[s]=false;
    return r;
}







int32_t travelTime(int32_t n, int32_t m, int32_t l, int32_t a[], int32_t b[], int32_t t[]){

    for(int i=0;i<m; i++){
        int u=a[i], v=b[i];
        g[u].pb({v, t[i]}); g[v].pb({u, t[i]});
    }
    int res=0;
    for(int i=0; i<n; i++){
        if(!v[i]){
            c++;
            dfs(i);
            int r=dfs2(i, dp[i][1]);
            pii p=diam(i);
            p=diam(p.sc);
            d[c]=p.ft;
            h[c]=r;
            res=max(res, d[c]);
        }
    }

    sort(h+1, h+1+c);
    if(c>=2){
        res=max(res, l+h[c]+h[c-1]);
    }
    if(c>2){
        res=max(res, l*2+h[c-1]+h[c-1]);
    }

    return res;
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 19692 KB Output is correct
2 Correct 72 ms 19564 KB Output is correct
3 Correct 45 ms 13952 KB Output is correct
4 Correct 10 ms 5228 KB Output is correct
5 Correct 9 ms 4352 KB Output is correct
6 Correct 18 ms 6520 KB Output is correct
7 Correct 2 ms 2816 KB Output is correct
8 Correct 39 ms 9208 KB Output is correct
9 Correct 53 ms 12012 KB Output is correct
10 Correct 2 ms 2796 KB Output is correct
11 Correct 81 ms 14252 KB Output is correct
12 Correct 99 ms 17260 KB Output is correct
13 Correct 3 ms 2924 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 19692 KB Output is correct
2 Correct 72 ms 19564 KB Output is correct
3 Correct 45 ms 13952 KB Output is correct
4 Correct 10 ms 5228 KB Output is correct
5 Correct 9 ms 4352 KB Output is correct
6 Correct 18 ms 6520 KB Output is correct
7 Correct 2 ms 2816 KB Output is correct
8 Correct 39 ms 9208 KB Output is correct
9 Correct 53 ms 12012 KB Output is correct
10 Correct 2 ms 2796 KB Output is correct
11 Correct 81 ms 14252 KB Output is correct
12 Correct 99 ms 17260 KB Output is correct
13 Correct 3 ms 2924 KB Output is correct
14 Correct 2 ms 2668 KB Output is correct
15 Correct 2 ms 2668 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2668 KB Output is correct
18 Correct 2 ms 2668 KB Output is correct
19 Correct 2 ms 2668 KB Output is correct
20 Correct 2 ms 2668 KB Output is correct
21 Correct 2 ms 2668 KB Output is correct
22 Correct 2 ms 2668 KB Output is correct
23 Correct 2 ms 2668 KB Output is correct
24 Correct 2 ms 2668 KB Output is correct
25 Correct 2 ms 2668 KB Output is correct
26 Correct 2 ms 2668 KB Output is correct
27 Correct 2 ms 2668 KB Output is correct
28 Correct 2 ms 2668 KB Output is correct
29 Correct 2 ms 2688 KB Output is correct
30 Correct 2 ms 2668 KB Output is correct
31 Correct 2 ms 2668 KB Output is correct
32 Correct 2 ms 2668 KB Output is correct
33 Correct 2 ms 2668 KB Output is correct
34 Correct 2 ms 2668 KB Output is correct
35 Correct 3 ms 2668 KB Output is correct
36 Correct 2 ms 2668 KB Output is correct
37 Correct 2 ms 2668 KB Output is correct
38 Correct 2 ms 2668 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 19692 KB Output is correct
2 Correct 72 ms 19564 KB Output is correct
3 Correct 45 ms 13952 KB Output is correct
4 Correct 10 ms 5228 KB Output is correct
5 Correct 9 ms 4352 KB Output is correct
6 Correct 18 ms 6520 KB Output is correct
7 Correct 2 ms 2816 KB Output is correct
8 Correct 39 ms 9208 KB Output is correct
9 Correct 53 ms 12012 KB Output is correct
10 Correct 2 ms 2796 KB Output is correct
11 Correct 81 ms 14252 KB Output is correct
12 Correct 99 ms 17260 KB Output is correct
13 Correct 3 ms 2924 KB Output is correct
14 Correct 2 ms 2668 KB Output is correct
15 Correct 2 ms 2668 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2668 KB Output is correct
18 Correct 2 ms 2668 KB Output is correct
19 Correct 2 ms 2668 KB Output is correct
20 Correct 2 ms 2668 KB Output is correct
21 Correct 2 ms 2668 KB Output is correct
22 Correct 2 ms 2668 KB Output is correct
23 Correct 2 ms 2668 KB Output is correct
24 Correct 2 ms 2668 KB Output is correct
25 Correct 2 ms 2668 KB Output is correct
26 Correct 2 ms 2668 KB Output is correct
27 Correct 2 ms 2668 KB Output is correct
28 Correct 2 ms 2668 KB Output is correct
29 Correct 2 ms 2688 KB Output is correct
30 Correct 2 ms 2668 KB Output is correct
31 Correct 2 ms 2668 KB Output is correct
32 Correct 2 ms 2668 KB Output is correct
33 Correct 2 ms 2668 KB Output is correct
34 Correct 2 ms 2668 KB Output is correct
35 Correct 3 ms 2668 KB Output is correct
36 Correct 2 ms 2668 KB Output is correct
37 Correct 2 ms 2668 KB Output is correct
38 Correct 2 ms 2668 KB Output is correct
39 Correct 73 ms 19692 KB Output is correct
40 Correct 68 ms 19692 KB Output is correct
41 Correct 45 ms 13952 KB Output is correct
42 Correct 10 ms 5228 KB Output is correct
43 Correct 2 ms 2668 KB Output is correct
44 Correct 2 ms 2668 KB Output is correct
45 Correct 2 ms 2668 KB Output is correct
46 Correct 2 ms 2668 KB Output is correct
47 Correct 2 ms 2668 KB Output is correct
48 Correct 2 ms 2668 KB Output is correct
49 Correct 2 ms 2668 KB Output is correct
50 Correct 2 ms 2668 KB Output is correct
51 Correct 2 ms 2668 KB Output is correct
52 Correct 2 ms 2668 KB Output is correct
53 Correct 2 ms 2668 KB Output is correct
54 Correct 2 ms 2668 KB Output is correct
55 Correct 2 ms 2668 KB Output is correct
56 Correct 2 ms 2688 KB Output is correct
57 Correct 122 ms 14700 KB Output is correct
58 Correct 115 ms 14572 KB Output is correct
59 Correct 103 ms 14444 KB Output is correct
60 Correct 104 ms 14444 KB Output is correct
61 Correct 98 ms 14188 KB Output is correct
62 Correct 102 ms 14188 KB Output is correct
63 Correct 96 ms 13932 KB Output is correct
64 Correct 95 ms 13932 KB Output is correct
65 Correct 96 ms 13952 KB Output is correct
66 Correct 101 ms 13932 KB Output is correct
67 Correct 107 ms 14572 KB Output is correct
68 Correct 104 ms 14444 KB Output is correct
69 Correct 109 ms 14444 KB Output is correct
70 Correct 118 ms 14444 KB Output is correct
71 Correct 2 ms 2668 KB Output is correct
72 Correct 4 ms 3052 KB Output is correct
73 Correct 4 ms 3052 KB Output is correct
74 Correct 4 ms 3052 KB Output is correct
75 Correct 4 ms 3052 KB Output is correct
76 Correct 4 ms 3052 KB Output is correct
77 Correct 4 ms 3052 KB Output is correct
78 Correct 4 ms 3052 KB Output is correct
79 Correct 4 ms 3052 KB Output is correct
80 Correct 115 ms 14316 KB Output is correct
81 Correct 109 ms 14444 KB Output is correct
82 Correct 103 ms 14188 KB Output is correct
83 Correct 105 ms 14388 KB Output is correct
84 Correct 3 ms 3072 KB Output is correct
85 Correct 3 ms 2924 KB Output is correct
86 Correct 3 ms 3052 KB Output is correct
87 Correct 3 ms 3052 KB Output is correct
88 Correct 3 ms 3052 KB Output is correct
89 Correct 3 ms 3052 KB Output is correct
90 Correct 3 ms 3052 KB Output is correct
91 Correct 4 ms 3052 KB Output is correct
92 Correct 3 ms 3052 KB Output is correct
93 Correct 3 ms 3052 KB Output is correct
94 Correct 2 ms 2676 KB Output is correct
95 Correct 2 ms 2688 KB Output is correct
96 Correct 2 ms 2668 KB Output is correct
97 Correct 2 ms 2668 KB Output is correct
98 Correct 2 ms 2668 KB Output is correct
99 Correct 2 ms 2668 KB Output is correct
100 Correct 2 ms 2668 KB Output is correct
101 Correct 2 ms 2668 KB Output is correct
102 Correct 2 ms 2668 KB Output is correct
103 Correct 2 ms 2668 KB Output is correct
104 Correct 8 ms 4332 KB Output is correct
105 Correct 17 ms 6656 KB Output is correct
106 Correct 2 ms 2796 KB Output is correct
107 Correct 40 ms 9196 KB Output is correct
108 Correct 51 ms 12012 KB Output is correct
109 Correct 2 ms 2796 KB Output is correct
110 Correct 75 ms 14316 KB Output is correct
111 Correct 91 ms 17132 KB Output is correct
112 Correct 2 ms 2816 KB Output is correct
113 Correct 135 ms 23276 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 10604 KB Output is correct
2 Incorrect 30 ms 10604 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 19692 KB Output is correct
2 Correct 72 ms 19564 KB Output is correct
3 Correct 45 ms 13952 KB Output is correct
4 Correct 10 ms 5228 KB Output is correct
5 Correct 9 ms 4352 KB Output is correct
6 Correct 18 ms 6520 KB Output is correct
7 Correct 2 ms 2816 KB Output is correct
8 Correct 39 ms 9208 KB Output is correct
9 Correct 53 ms 12012 KB Output is correct
10 Correct 2 ms 2796 KB Output is correct
11 Correct 81 ms 14252 KB Output is correct
12 Correct 99 ms 17260 KB Output is correct
13 Correct 3 ms 2924 KB Output is correct
14 Correct 2 ms 2796 KB Output is correct
15 Correct 3 ms 2924 KB Output is correct
16 Correct 3 ms 3052 KB Output is correct
17 Incorrect 2 ms 2796 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 19692 KB Output is correct
2 Correct 72 ms 19564 KB Output is correct
3 Correct 45 ms 13952 KB Output is correct
4 Correct 10 ms 5228 KB Output is correct
5 Correct 9 ms 4352 KB Output is correct
6 Correct 18 ms 6520 KB Output is correct
7 Correct 2 ms 2816 KB Output is correct
8 Correct 39 ms 9208 KB Output is correct
9 Correct 53 ms 12012 KB Output is correct
10 Correct 2 ms 2796 KB Output is correct
11 Correct 81 ms 14252 KB Output is correct
12 Correct 99 ms 17260 KB Output is correct
13 Correct 3 ms 2924 KB Output is correct
14 Correct 2 ms 2668 KB Output is correct
15 Correct 2 ms 2668 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2668 KB Output is correct
18 Correct 2 ms 2668 KB Output is correct
19 Correct 2 ms 2668 KB Output is correct
20 Correct 2 ms 2668 KB Output is correct
21 Correct 2 ms 2668 KB Output is correct
22 Correct 2 ms 2668 KB Output is correct
23 Correct 2 ms 2668 KB Output is correct
24 Correct 2 ms 2668 KB Output is correct
25 Correct 2 ms 2668 KB Output is correct
26 Correct 2 ms 2668 KB Output is correct
27 Correct 2 ms 2668 KB Output is correct
28 Correct 2 ms 2668 KB Output is correct
29 Correct 2 ms 2688 KB Output is correct
30 Correct 2 ms 2668 KB Output is correct
31 Correct 2 ms 2668 KB Output is correct
32 Correct 2 ms 2668 KB Output is correct
33 Correct 2 ms 2668 KB Output is correct
34 Correct 2 ms 2668 KB Output is correct
35 Correct 3 ms 2668 KB Output is correct
36 Correct 2 ms 2668 KB Output is correct
37 Correct 2 ms 2668 KB Output is correct
38 Correct 2 ms 2668 KB Output is correct
39 Correct 73 ms 19692 KB Output is correct
40 Correct 68 ms 19692 KB Output is correct
41 Correct 45 ms 13952 KB Output is correct
42 Correct 10 ms 5228 KB Output is correct
43 Correct 2 ms 2668 KB Output is correct
44 Correct 2 ms 2668 KB Output is correct
45 Correct 2 ms 2668 KB Output is correct
46 Correct 2 ms 2668 KB Output is correct
47 Correct 2 ms 2668 KB Output is correct
48 Correct 2 ms 2668 KB Output is correct
49 Correct 2 ms 2668 KB Output is correct
50 Correct 2 ms 2668 KB Output is correct
51 Correct 2 ms 2668 KB Output is correct
52 Correct 2 ms 2668 KB Output is correct
53 Correct 2 ms 2668 KB Output is correct
54 Correct 2 ms 2668 KB Output is correct
55 Correct 2 ms 2668 KB Output is correct
56 Correct 2 ms 2688 KB Output is correct
57 Correct 122 ms 14700 KB Output is correct
58 Correct 115 ms 14572 KB Output is correct
59 Correct 103 ms 14444 KB Output is correct
60 Correct 104 ms 14444 KB Output is correct
61 Correct 98 ms 14188 KB Output is correct
62 Correct 102 ms 14188 KB Output is correct
63 Correct 96 ms 13932 KB Output is correct
64 Correct 95 ms 13932 KB Output is correct
65 Correct 96 ms 13952 KB Output is correct
66 Correct 101 ms 13932 KB Output is correct
67 Correct 107 ms 14572 KB Output is correct
68 Correct 104 ms 14444 KB Output is correct
69 Correct 109 ms 14444 KB Output is correct
70 Correct 118 ms 14444 KB Output is correct
71 Correct 2 ms 2668 KB Output is correct
72 Correct 4 ms 3052 KB Output is correct
73 Correct 4 ms 3052 KB Output is correct
74 Correct 4 ms 3052 KB Output is correct
75 Correct 4 ms 3052 KB Output is correct
76 Correct 4 ms 3052 KB Output is correct
77 Correct 4 ms 3052 KB Output is correct
78 Correct 4 ms 3052 KB Output is correct
79 Correct 4 ms 3052 KB Output is correct
80 Correct 115 ms 14316 KB Output is correct
81 Correct 109 ms 14444 KB Output is correct
82 Correct 103 ms 14188 KB Output is correct
83 Correct 105 ms 14388 KB Output is correct
84 Correct 3 ms 3072 KB Output is correct
85 Correct 3 ms 2924 KB Output is correct
86 Correct 3 ms 3052 KB Output is correct
87 Correct 3 ms 3052 KB Output is correct
88 Correct 3 ms 3052 KB Output is correct
89 Correct 3 ms 3052 KB Output is correct
90 Correct 3 ms 3052 KB Output is correct
91 Correct 4 ms 3052 KB Output is correct
92 Correct 3 ms 3052 KB Output is correct
93 Correct 3 ms 3052 KB Output is correct
94 Correct 2 ms 2676 KB Output is correct
95 Correct 2 ms 2688 KB Output is correct
96 Correct 2 ms 2668 KB Output is correct
97 Correct 2 ms 2668 KB Output is correct
98 Correct 2 ms 2668 KB Output is correct
99 Correct 2 ms 2668 KB Output is correct
100 Correct 2 ms 2668 KB Output is correct
101 Correct 2 ms 2668 KB Output is correct
102 Correct 2 ms 2668 KB Output is correct
103 Correct 2 ms 2668 KB Output is correct
104 Correct 8 ms 4332 KB Output is correct
105 Correct 17 ms 6656 KB Output is correct
106 Correct 2 ms 2796 KB Output is correct
107 Correct 40 ms 9196 KB Output is correct
108 Correct 51 ms 12012 KB Output is correct
109 Correct 2 ms 2796 KB Output is correct
110 Correct 75 ms 14316 KB Output is correct
111 Correct 91 ms 17132 KB Output is correct
112 Correct 2 ms 2816 KB Output is correct
113 Correct 135 ms 23276 KB Output is correct
114 Correct 30 ms 10604 KB Output is correct
115 Incorrect 30 ms 10604 KB Output isn't correct
116 Halted 0 ms 0 KB -