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답안 #167526

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
167526 2019-12-08T19:07:59 Z DavidDamian 꿈 (IOI13_dreaming) C++11
42 / 100
 100 ms 18032 KB 
#include "dreaming.h"
#include<vector>
#include<queue>
#include<algorithm>
#include<iostream>
using namespace std;
bool byGreater(int a,int b)
{
    return a>b;
}
struct edge
{
    int from,to;
    int w;
};
vector<edge> adjList[100005];
int Far[100005]; //Stores the minimum longest distance for each tree
int color[100005];
int d[2][100005];
queue<int> Q;
int bfs(int s,int op,int c)
{
    color[s]=c;
    d[op][s]=0;
    Q.push(s);
    int farthest_node;
    int maximum=0;
    while(Q.size()){
        int u=Q.front();Q.pop();
        for(edge e: adjList[u]){
            int v=e.to;
            if(color[v]!=c){
                color[v]=c;
                d[op][v]=d[op][u]+e.w;
                if(d[op][v]>maximum){
                    maximum=d[op][v];
                    farthest_node=v;
                }
                Q.push(v);
            }
        }
    }
    return farthest_node;
}
int getOptimumDistance(int s,int c)
{
    color[s]=c;
    int minimumD=1000000000;
    Q.push(s);
    while(Q.size()){
        int u=Q.front();Q.pop();
        if(max(d[0][u],d[1][u])<minimumD){
            minimumD=max(d[0][u],d[1][u]);
        }
        for(edge e: adjList[u]){
            int v=e.to;
            if(color[v]!=c){
                color[v]=c;
                Q.push(v);
            }
        }
    }
    return minimumD;
}
short used[100005];
int far[3];
int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    for(int i=0;i<M;i++){
        edge e={A[i],B[i],T[i]};
        adjList[e.from].push_back(e);
        swap(e.from,e.to);
        adjList[e.from].push_back(e);
    }
    int answer=0;
    int max_diameter=0;
    int c=1;
    int trees=0;
    for(int u=0;u<N;u++){
        if(color[u]!=0) continue;
        int a=bfs(u,1,c++);
        int b=bfs(a,0,c++);
        bfs(b,1,c++);
        max_diameter=max(max_diameter,d[1][a]);
        Far[trees++]=getOptimumDistance(u,c++);
    }
    for(int j=0;j<3;j++){
        int maximum=4;
        for(int i=0;i<trees+2;i++){
            if(Far[i]>far[j] && !used[i]){
                far[j]=Far[i];
                maximum=i;
            }
        }
        used[maximum]=1;
    }
    //cout<<far[0]<<" "<<far[1]<<" "<<far[2]<<endl;
    if(trees==1){
        answer=max_diameter;
    }
    else if(trees==2){
        answer=max(max_diameter,far[0]+L+far[1]); //Path joining yourself with another tree
    }
    else{
        answer=max(max_diameter,
                   max(far[0]+L+far[1],far[1]+L+L+far[2])); //Path joining yourself with another tree
                   //and joining other two trees whose path passes for you
    }
    return answer;
}

Compilation message

dreaming.cpp: In function 'int bfs(int, int, int)':
dreaming.cpp:43:12: warning: 'farthest_node' may be used uninitialized in this function [-Wmaybe-uninitialized]
     return farthest_node;
            ^~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 7672 KB Output is correct
2 Correct 65 ms 7672 KB Output is correct
3 Correct 44 ms 6008 KB Output is correct
4 Correct 12 ms 3448 KB Output is correct
5 Correct 11 ms 3192 KB Output is correct
6 Correct 19 ms 3836 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 35 ms 4856 KB Output is correct
9 Correct 45 ms 5512 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 62 ms 6520 KB Output is correct
12 Correct 68 ms 7032 KB Output is correct
13 Correct 4 ms 2808 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 7672 KB Output is correct
2 Correct 65 ms 7672 KB Output is correct
3 Correct 44 ms 6008 KB Output is correct
4 Correct 12 ms 3448 KB Output is correct
5 Correct 11 ms 3192 KB Output is correct
6 Correct 19 ms 3836 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 35 ms 4856 KB Output is correct
9 Correct 45 ms 5512 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 62 ms 6520 KB Output is correct
12 Correct 68 ms 7032 KB Output is correct
13 Correct 4 ms 2808 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2680 KB Output is correct
17 Correct 4 ms 2684 KB Output is correct
18 Correct 4 ms 2680 KB Output is correct
19 Correct 4 ms 2680 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 4 ms 2680 KB Output is correct
22 Correct 4 ms 2680 KB Output is correct
23 Correct 4 ms 2684 KB Output is correct
24 Correct 4 ms 2680 KB Output is correct
25 Correct 4 ms 2640 KB Output is correct
26 Correct 4 ms 2680 KB Output is correct
27 Correct 4 ms 2680 KB Output is correct
28 Correct 4 ms 2680 KB Output is correct
29 Correct 4 ms 2680 KB Output is correct
30 Correct 4 ms 2680 KB Output is correct
31 Correct 4 ms 2680 KB Output is correct
32 Correct 4 ms 2680 KB Output is correct
33 Correct 4 ms 2680 KB Output is correct
34 Correct 4 ms 2680 KB Output is correct
35 Correct 4 ms 2680 KB Output is correct
36 Correct 4 ms 2680 KB Output is correct
37 Correct 4 ms 2680 KB Output is correct
38 Correct 4 ms 2680 KB Output is correct

Subtask #3
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 7672 KB Output is correct
2 Correct 65 ms 7672 KB Output is correct
3 Correct 44 ms 6008 KB Output is correct
4 Correct 12 ms 3448 KB Output is correct
5 Correct 11 ms 3192 KB Output is correct
6 Correct 19 ms 3836 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 35 ms 4856 KB Output is correct
9 Correct 45 ms 5512 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 62 ms 6520 KB Output is correct
12 Correct 68 ms 7032 KB Output is correct
13 Correct 4 ms 2808 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2680 KB Output is correct
17 Correct 4 ms 2684 KB Output is correct
18 Correct 4 ms 2680 KB Output is correct
19 Correct 4 ms 2680 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 4 ms 2680 KB Output is correct
22 Correct 4 ms 2680 KB Output is correct
23 Correct 4 ms 2684 KB Output is correct
24 Correct 4 ms 2680 KB Output is correct
25 Correct 4 ms 2640 KB Output is correct
26 Correct 4 ms 2680 KB Output is correct
27 Correct 4 ms 2680 KB Output is correct
28 Correct 4 ms 2680 KB Output is correct
29 Correct 4 ms 2680 KB Output is correct
30 Correct 4 ms 2680 KB Output is correct
31 Correct 4 ms 2680 KB Output is correct
32 Correct 4 ms 2680 KB Output is correct
33 Correct 4 ms 2680 KB Output is correct
34 Correct 4 ms 2680 KB Output is correct
35 Correct 4 ms 2680 KB Output is correct
36 Correct 4 ms 2680 KB Output is correct
37 Correct 4 ms 2680 KB Output is correct
38 Correct 4 ms 2680 KB Output is correct
39 Correct 69 ms 9076 KB Output is correct
40 Correct 67 ms 8952 KB Output is correct
41 Correct 46 ms 6904 KB Output is correct
42 Correct 13 ms 3704 KB Output is correct
43 Correct 4 ms 2680 KB Output is correct
44 Correct 4 ms 2680 KB Output is correct
45 Correct 4 ms 2680 KB Output is correct
46 Correct 4 ms 2680 KB Output is correct
47 Correct 4 ms 2680 KB Output is correct
48 Correct 4 ms 2680 KB Output is correct
49 Correct 4 ms 2680 KB Output is correct
50 Correct 4 ms 2680 KB Output is correct
51 Correct 4 ms 2680 KB Output is correct
52 Correct 4 ms 2680 KB Output is correct
53 Correct 4 ms 2680 KB Output is correct
54 Correct 4 ms 2680 KB Output is correct
55 Correct 4 ms 2680 KB Output is correct
56 Correct 4 ms 2680 KB Output is correct
57 Correct 90 ms 10872 KB Output is correct
58 Correct 100 ms 10788 KB Output is correct
59 Correct 97 ms 10804 KB Output is correct
60 Correct 90 ms 10616 KB Output is correct
61 Correct 87 ms 10872 KB Output is correct
62 Correct 89 ms 10872 KB Output is correct
63 Correct 81 ms 10488 KB Output is correct
64 Correct 92 ms 10360 KB Output is correct
65 Correct 86 ms 10872 KB Output is correct
66 Correct 83 ms 10876 KB Output is correct
67 Correct 87 ms 10616 KB Output is correct
68 Correct 90 ms 10616 KB Output is correct
69 Correct 92 ms 10872 KB Output is correct
70 Correct 92 ms 10932 KB Output is correct
71 Correct 4 ms 2680 KB Output is correct
72 Correct 6 ms 2936 KB Output is correct
73 Correct 6 ms 2940 KB Output is correct
74 Correct 6 ms 2936 KB Output is correct
75 Correct 6 ms 2936 KB Output is correct
76 Correct 6 ms 2936 KB Output is correct
77 Correct 6 ms 2936 KB Output is correct
78 Correct 6 ms 2936 KB Output is correct
79 Correct 6 ms 2936 KB Output is correct
80 Correct 87 ms 10616 KB Output is correct
81 Correct 88 ms 10640 KB Output is correct
82 Correct 87 ms 10872 KB Output is correct
83 Correct 88 ms 10872 KB Output is correct
84 Correct 5 ms 2936 KB Output is correct
85 Correct 5 ms 2940 KB Output is correct
86 Correct 5 ms 2936 KB Output is correct
87 Correct 5 ms 2940 KB Output is correct
88 Correct 5 ms 2936 KB Output is correct
89 Correct 5 ms 2936 KB Output is correct
90 Correct 6 ms 2904 KB Output is correct
91 Correct 6 ms 2936 KB Output is correct
92 Correct 6 ms 2936 KB Output is correct
93 Correct 5 ms 2936 KB Output is correct
94 Correct 4 ms 2680 KB Output is correct
95 Correct 4 ms 2680 KB Output is correct
96 Correct 4 ms 2680 KB Output is correct
97 Correct 4 ms 2680 KB Output is correct
98 Correct 4 ms 2680 KB Output is correct
99 Correct 4 ms 2680 KB Output is correct
100 Correct 4 ms 2680 KB Output is correct
101 Correct 4 ms 2680 KB Output is correct
102 Correct 4 ms 2680 KB Output is correct
103 Correct 4 ms 2680 KB Output is correct
104 Correct 11 ms 3320 KB Output is correct
105 Correct 20 ms 4092 KB Output is correct
106 Correct 6 ms 2552 KB Output is correct
107 Correct 35 ms 5368 KB Output is correct
108 Correct 43 ms 6136 KB Output is correct
109 Correct 4 ms 2680 KB Output is correct
110 Correct 63 ms 7416 KB Output is correct
111 Correct 68 ms 8184 KB Output is correct
112 Correct 4 ms 2808 KB Output is correct
113 Runtime error 99 ms 18032 KB Execution killed with signal 11 (could be triggered by violating memory limits)

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 6736 KB Output is correct
2 Correct 33 ms 6764 KB Output is correct
3 Correct 31 ms 6776 KB Output is correct
4 Correct 31 ms 6748 KB Output is correct
5 Correct 31 ms 6776 KB Output is correct
6 Correct 34 ms 7160 KB Output is correct
7 Correct 36 ms 7032 KB Output is correct
8 Correct 33 ms 6776 KB Output is correct
9 Correct 31 ms 6776 KB Output is correct
10 Correct 32 ms 6904 KB Output is correct
11 Correct 4 ms 2808 KB Output is correct
12 Correct 11 ms 4348 KB Output is correct
13 Correct 11 ms 4344 KB Output is correct
14 Correct 11 ms 4344 KB Output is correct
15 Correct 11 ms 4344 KB Output is correct
16 Correct 11 ms 4344 KB Output is correct
17 Correct 11 ms 4088 KB Output is correct
18 Correct 11 ms 4344 KB Output is correct
19 Correct 11 ms 4344 KB Output is correct
20 Correct 4 ms 2684 KB Output is correct
21 Correct 4 ms 2760 KB Output is correct
22 Correct 4 ms 2808 KB Output is correct
23 Correct 11 ms 4344 KB Output is correct

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 7672 KB Output is correct
2 Correct 65 ms 7672 KB Output is correct
3 Correct 44 ms 6008 KB Output is correct
4 Correct 12 ms 3448 KB Output is correct
5 Correct 11 ms 3192 KB Output is correct
6 Correct 19 ms 3836 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 35 ms 4856 KB Output is correct
9 Correct 45 ms 5512 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 62 ms 6520 KB Output is correct
12 Correct 68 ms 7032 KB Output is correct
13 Correct 4 ms 2808 KB Output is correct
14 Correct 4 ms 2808 KB Output is correct
15 Correct 5 ms 2936 KB Output is correct
16 Correct 5 ms 2936 KB Output is correct
17 Correct 4 ms 2808 KB Output is correct
18 Correct 5 ms 2936 KB Output is correct
19 Correct 5 ms 2936 KB Output is correct
20 Correct 4 ms 2808 KB Output is correct
21 Correct 5 ms 2936 KB Output is correct
22 Correct 5 ms 2896 KB Output is correct
23 Correct 4 ms 2680 KB Output is correct
24 Correct 4 ms 2680 KB Output is correct
25 Correct 4 ms 2680 KB Output is correct
26 Correct 4 ms 2680 KB Output is correct
27 Correct 4 ms 2680 KB Output is correct
28 Correct 4 ms 2808 KB Output is correct
29 Correct 4 ms 2812 KB Output is correct
30 Correct 4 ms 2680 KB Output is correct
31 Correct 4 ms 2680 KB Output is correct
32 Correct 4 ms 2680 KB Output is correct
33 Correct 4 ms 2680 KB Output is correct
34 Correct 4 ms 2680 KB Output is correct
35 Correct 4 ms 2680 KB Output is correct
36 Correct 4 ms 2680 KB Output is correct
37 Correct 4 ms 2680 KB Output is correct
38 Correct 4 ms 2680 KB Output is correct
39 Correct 4 ms 2680 KB Output is correct
40 Correct 4 ms 2680 KB Output is correct
41 Correct 4 ms 2680 KB Output is correct
42 Correct 6 ms 2936 KB Output is correct
43 Correct 5 ms 2936 KB Output is correct
44 Correct 5 ms 2936 KB Output is correct
45 Correct 4 ms 2808 KB Output is correct
46 Correct 6 ms 2936 KB Output is correct
47 Correct 6 ms 2936 KB Output is correct
48 Correct 5 ms 2808 KB Output is correct
49 Correct 4 ms 2808 KB Output is correct
50 Correct 6 ms 2936 KB Output is correct
51 Correct 6 ms 2908 KB Output is correct
52 Correct 4 ms 2808 KB Output is correct
53 Correct 5 ms 2936 KB Output is correct
54 Correct 6 ms 2936 KB Output is correct
55 Correct 6 ms 2936 KB Output is correct
56 Correct 5 ms 2936 KB Output is correct
57 Correct 5 ms 2936 KB Output is correct
58 Correct 5 ms 2808 KB Output is correct
59 Correct 5 ms 2808 KB Output is correct
60 Correct 6 ms 2936 KB Output is correct
61 Correct 6 ms 2936 KB Output is correct
62 Runtime error 9 ms 5752 KB Execution killed with signal 11 (could be triggered by violating memory limits)
63 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 7672 KB Output is correct
2 Correct 65 ms 7672 KB Output is correct
3 Correct 44 ms 6008 KB Output is correct
4 Correct 12 ms 3448 KB Output is correct
5 Correct 11 ms 3192 KB Output is correct
6 Correct 19 ms 3836 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 35 ms 4856 KB Output is correct
9 Correct 45 ms 5512 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 62 ms 6520 KB Output is correct
12 Correct 68 ms 7032 KB Output is correct
13 Correct 4 ms 2808 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2680 KB Output is correct
17 Correct 4 ms 2684 KB Output is correct
18 Correct 4 ms 2680 KB Output is correct
19 Correct 4 ms 2680 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 4 ms 2680 KB Output is correct
22 Correct 4 ms 2680 KB Output is correct
23 Correct 4 ms 2684 KB Output is correct
24 Correct 4 ms 2680 KB Output is correct
25 Correct 4 ms 2640 KB Output is correct
26 Correct 4 ms 2680 KB Output is correct
27 Correct 4 ms 2680 KB Output is correct
28 Correct 4 ms 2680 KB Output is correct
29 Correct 4 ms 2680 KB Output is correct
30 Correct 4 ms 2680 KB Output is correct
31 Correct 4 ms 2680 KB Output is correct
32 Correct 4 ms 2680 KB Output is correct
33 Correct 4 ms 2680 KB Output is correct
34 Correct 4 ms 2680 KB Output is correct
35 Correct 4 ms 2680 KB Output is correct
36 Correct 4 ms 2680 KB Output is correct
37 Correct 4 ms 2680 KB Output is correct
38 Correct 4 ms 2680 KB Output is correct
39 Correct 69 ms 9076 KB Output is correct
40 Correct 67 ms 8952 KB Output is correct
41 Correct 46 ms 6904 KB Output is correct
42 Correct 13 ms 3704 KB Output is correct
43 Correct 4 ms 2680 KB Output is correct
44 Correct 4 ms 2680 KB Output is correct
45 Correct 4 ms 2680 KB Output is correct
46 Correct 4 ms 2680 KB Output is correct
47 Correct 4 ms 2680 KB Output is correct
48 Correct 4 ms 2680 KB Output is correct
49 Correct 4 ms 2680 KB Output is correct
50 Correct 4 ms 2680 KB Output is correct
51 Correct 4 ms 2680 KB Output is correct
52 Correct 4 ms 2680 KB Output is correct
53 Correct 4 ms 2680 KB Output is correct
54 Correct 4 ms 2680 KB Output is correct
55 Correct 4 ms 2680 KB Output is correct
56 Correct 4 ms 2680 KB Output is correct
57 Correct 90 ms 10872 KB Output is correct
58 Correct 100 ms 10788 KB Output is correct
59 Correct 97 ms 10804 KB Output is correct
60 Correct 90 ms 10616 KB Output is correct
61 Correct 87 ms 10872 KB Output is correct
62 Correct 89 ms 10872 KB Output is correct
63 Correct 81 ms 10488 KB Output is correct
64 Correct 92 ms 10360 KB Output is correct
65 Correct 86 ms 10872 KB Output is correct
66 Correct 83 ms 10876 KB Output is correct
67 Correct 87 ms 10616 KB Output is correct
68 Correct 90 ms 10616 KB Output is correct
69 Correct 92 ms 10872 KB Output is correct
70 Correct 92 ms 10932 KB Output is correct
71 Correct 4 ms 2680 KB Output is correct
72 Correct 6 ms 2936 KB Output is correct
73 Correct 6 ms 2940 KB Output is correct
74 Correct 6 ms 2936 KB Output is correct
75 Correct 6 ms 2936 KB Output is correct
76 Correct 6 ms 2936 KB Output is correct
77 Correct 6 ms 2936 KB Output is correct
78 Correct 6 ms 2936 KB Output is correct
79 Correct 6 ms 2936 KB Output is correct
80 Correct 87 ms 10616 KB Output is correct
81 Correct 88 ms 10640 KB Output is correct
82 Correct 87 ms 10872 KB Output is correct
83 Correct 88 ms 10872 KB Output is correct
84 Correct 5 ms 2936 KB Output is correct
85 Correct 5 ms 2940 KB Output is correct
86 Correct 5 ms 2936 KB Output is correct
87 Correct 5 ms 2940 KB Output is correct
88 Correct 5 ms 2936 KB Output is correct
89 Correct 5 ms 2936 KB Output is correct
90 Correct 6 ms 2904 KB Output is correct
91 Correct 6 ms 2936 KB Output is correct
92 Correct 6 ms 2936 KB Output is correct
93 Correct 5 ms 2936 KB Output is correct
94 Correct 4 ms 2680 KB Output is correct
95 Correct 4 ms 2680 KB Output is correct
96 Correct 4 ms 2680 KB Output is correct
97 Correct 4 ms 2680 KB Output is correct
98 Correct 4 ms 2680 KB Output is correct
99 Correct 4 ms 2680 KB Output is correct
100 Correct 4 ms 2680 KB Output is correct
101 Correct 4 ms 2680 KB Output is correct
102 Correct 4 ms 2680 KB Output is correct
103 Correct 4 ms 2680 KB Output is correct
104 Correct 11 ms 3320 KB Output is correct
105 Correct 20 ms 4092 KB Output is correct
106 Correct 6 ms 2552 KB Output is correct
107 Correct 35 ms 5368 KB Output is correct
108 Correct 43 ms 6136 KB Output is correct
109 Correct 4 ms 2680 KB Output is correct
110 Correct 63 ms 7416 KB Output is correct
111 Correct 68 ms 8184 KB Output is correct
112 Correct 4 ms 2808 KB Output is correct
113 Runtime error 99 ms 18032 KB Execution killed with signal 11 (could be triggered by violating memory limits)