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답안 #970663

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
970663 2024-04-27T03:33:57 Z yeediot 꿈 (IOI13_dreaming) C++17
47 / 100
 60 ms 16096 KB 
#include<bits/stdc++.h>
#include "dreaming.h"
using namespace std;
#define F first
#define S second
#define chmin(a,b) a=(a<b?a:b)
#define chmax(a,b) a=(a>b?a:b)
const int mxn=1e5+5;
vector<pair<int,int>>adj[mxn];
pair<int,int>dp[mxn];
bool vis[mxn];
int dp2[mxn];
void dfs(int v,int pa){
    vis[v]=1;
    for(auto [u,len]:adj[v]){
        if(u==pa)
            continue;
        dfs(u,v);
        if(dp[v].F<=dp[u].F+len){
            dp[v].S=dp[v].F;
            dp[v].F=dp[u].F+len;
        }
        else if(dp[v].S<dp[u].F+len){
            dp[v].S=dp[u].F+len;
        }
    }
}
pair<int,int> mn;
int mx=-2e9;
void reroot(int v,int pa){
    chmin(mn,make_pair(dp[v].F,v));
    for(auto [u,len]:adj[v]){
        if(u==pa)
            continue;
        int x;
        if(dp[v].F!=dp[u].F+len){
            x=dp[v].F;
        }
        else{
            x=dp[v].S;
        }
        x+=len;
        if(dp[u].F<=x){
            dp[u].S=dp[u].F;
            dp[u].F=x;
        }
        else if(dp[u].S<x){
            dp[u].S=x;
        }
        reroot(u,v);
    }
}
void dfs2(int v,int pa){
    for(auto [u,len]:adj[v]){
        if(u==pa)
            continue;
        dfs2(u,v);
        chmax(mx,dp2[v]+dp2[u]+len);
        chmax(dp2[v],dp2[u]+len);
    }
}
vector<pair<int,int>>v;
int travelTime(int n,int m,int l,int a[],int b[],int t[]){
    for(int i=0;i<m;i++){
        adj[a[i]].push_back({b[i],t[i]});
        adj[b[i]].push_back({a[i],t[i]});
    }
    for(int i=0;i<n;i++){
        if(vis[i])
            continue;
        mn={2e9,2e9};
        dfs(i,i);
        reroot(i,i);
        v.push_back(mn);
    }
    sort(v.begin(),v.end(),greater<pair<int,int>>());
    for(int i=1;i<(int)v.size();i++){
        adj[v[0].S].push_back({v[i].S,l});
        adj[v[i].S].push_back({v[0].S,l});
    }
    dfs2(0,0);
    return mx;
}
#ifdef local
int main(){
    freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);
    int n,m,l;
    cin>>n>>m>>l;
    int a[m],b[m],t[m];
    for(int i=0;i<m;i++){
        cin>>a[i]>>b[i]>>t[i];
    }
    cout<<travelTime(n,m,l,a,b,t)<<'\n';
}
#else
#endif

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 12184 KB Output is correct
2 Correct 31 ms 11868 KB Output is correct
3 Correct 23 ms 11204 KB Output is correct
4 Correct 6 ms 6100 KB Output is correct
5 Correct 4 ms 5468 KB Output is correct
6 Correct 9 ms 6492 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 17 ms 8024 KB Output is correct
9 Correct 22 ms 9816 KB Output is correct
10 Correct 1 ms 4952 KB Output is correct
11 Correct 28 ms 9812 KB Output is correct
12 Correct 33 ms 10784 KB Output is correct
13 Correct 2 ms 4952 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 5208 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 5044 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 5040 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4956 KB Output is correct
13 Correct 1 ms 4888 KB Output is correct
14 Correct 1 ms 4952 KB Output is correct
15 Correct 1 ms 4952 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 1 ms 4956 KB Output is correct
20 Correct 1 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 1 ms 4956 KB Output is correct
23 Correct 1 ms 4956 KB Output is correct
24 Correct 1 ms 4956 KB Output is correct
25 Correct 1 ms 4956 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 12184 KB Output is correct
2 Correct 31 ms 11868 KB Output is correct
3 Correct 23 ms 11204 KB Output is correct
4 Correct 6 ms 6100 KB Output is correct
5 Correct 4 ms 5468 KB Output is correct
6 Correct 9 ms 6492 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 17 ms 8024 KB Output is correct
9 Correct 22 ms 9816 KB Output is correct
10 Correct 1 ms 4952 KB Output is correct
11 Correct 28 ms 9812 KB Output is correct
12 Correct 33 ms 10784 KB Output is correct
13 Correct 2 ms 4952 KB Output is correct
14 Correct 1 ms 5208 KB Output is correct
15 Correct 1 ms 4952 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 2 ms 5044 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 1 ms 5040 KB Output is correct
20 Correct 1 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 1 ms 4956 KB Output is correct
23 Correct 1 ms 4956 KB Output is correct
24 Correct 1 ms 4956 KB Output is correct
25 Correct 1 ms 4956 KB Output is correct
26 Correct 1 ms 4888 KB Output is correct
27 Correct 1 ms 4952 KB Output is correct
28 Correct 1 ms 4952 KB Output is correct
29 Correct 1 ms 4956 KB Output is correct
30 Correct 1 ms 4956 KB Output is correct
31 Correct 1 ms 4956 KB Output is correct
32 Correct 1 ms 4956 KB Output is correct
33 Correct 1 ms 4956 KB Output is correct
34 Correct 1 ms 4956 KB Output is correct
35 Correct 1 ms 4956 KB Output is correct
36 Correct 1 ms 4956 KB Output is correct
37 Correct 1 ms 4956 KB Output is correct
38 Correct 1 ms 4956 KB Output is correct
39 Correct 31 ms 12116 KB Output is correct
40 Correct 32 ms 12108 KB Output is correct
41 Correct 23 ms 11352 KB Output is correct
42 Correct 5 ms 5980 KB Output is correct
43 Correct 1 ms 4956 KB Output is correct
44 Correct 1 ms 4956 KB Output is correct
45 Correct 1 ms 4956 KB Output is correct
46 Correct 1 ms 4952 KB Output is correct
47 Correct 1 ms 4952 KB Output is correct
48 Correct 1 ms 4952 KB Output is correct
49 Correct 1 ms 4956 KB Output is correct
50 Correct 1 ms 4956 KB Output is correct
51 Correct 1 ms 4956 KB Output is correct
52 Correct 2 ms 4968 KB Output is correct
53 Correct 1 ms 4956 KB Output is correct
54 Correct 1 ms 4956 KB Output is correct
55 Correct 1 ms 4956 KB Output is correct
56 Correct 1 ms 4956 KB Output is correct
57 Correct 41 ms 9408 KB Output is correct
58 Correct 38 ms 9508 KB Output is correct
59 Correct 40 ms 9436 KB Output is correct
60 Correct 41 ms 9388 KB Output is correct
61 Correct 38 ms 9404 KB Output is correct
62 Correct 38 ms 9296 KB Output is correct
63 Correct 36 ms 9040 KB Output is correct
64 Correct 36 ms 9040 KB Output is correct
65 Correct 38 ms 9260 KB Output is correct
66 Correct 40 ms 9524 KB Output is correct
67 Correct 42 ms 9368 KB Output is correct
68 Correct 41 ms 9300 KB Output is correct
69 Correct 41 ms 9552 KB Output is correct
70 Correct 41 ms 9416 KB Output is correct
71 Correct 2 ms 4956 KB Output is correct
72 Correct 2 ms 5072 KB Output is correct
73 Correct 2 ms 4956 KB Output is correct
74 Correct 2 ms 4956 KB Output is correct
75 Correct 2 ms 4956 KB Output is correct
76 Correct 2 ms 4956 KB Output is correct
77 Correct 2 ms 4952 KB Output is correct
78 Correct 2 ms 4952 KB Output is correct
79 Correct 2 ms 4956 KB Output is correct
80 Correct 40 ms 9712 KB Output is correct
81 Correct 49 ms 9300 KB Output is correct
82 Correct 40 ms 9284 KB Output is correct
83 Correct 37 ms 9040 KB Output is correct
84 Correct 2 ms 4956 KB Output is correct
85 Correct 2 ms 4956 KB Output is correct
86 Correct 2 ms 4956 KB Output is correct
87 Correct 2 ms 4956 KB Output is correct
88 Correct 2 ms 4956 KB Output is correct
89 Correct 2 ms 4956 KB Output is correct
90 Correct 3 ms 4952 KB Output is correct
91 Correct 2 ms 4956 KB Output is correct
92 Correct 2 ms 4956 KB Output is correct
93 Correct 2 ms 4956 KB Output is correct
94 Correct 1 ms 4956 KB Output is correct
95 Correct 1 ms 4956 KB Output is correct
96 Correct 1 ms 4956 KB Output is correct
97 Correct 1 ms 4956 KB Output is correct
98 Correct 1 ms 4956 KB Output is correct
99 Correct 1 ms 4952 KB Output is correct
100 Correct 1 ms 4956 KB Output is correct
101 Correct 1 ms 4956 KB Output is correct
102 Correct 1 ms 4956 KB Output is correct
103 Correct 1 ms 4956 KB Output is correct
104 Correct 4 ms 5468 KB Output is correct
105 Correct 9 ms 6492 KB Output is correct
106 Correct 1 ms 4956 KB Output is correct
107 Correct 17 ms 7988 KB Output is correct
108 Correct 22 ms 9820 KB Output is correct
109 Correct 1 ms 4956 KB Output is correct
110 Correct 30 ms 10076 KB Output is correct
111 Correct 35 ms 11040 KB Output is correct
112 Correct 2 ms 4956 KB Output is correct
113 Correct 60 ms 16096 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 9016 KB Output is correct
2 Correct 19 ms 9092 KB Output is correct
3 Correct 21 ms 8972 KB Output is correct
4 Correct 20 ms 9096 KB Output is correct
5 Correct 19 ms 9088 KB Output is correct
6 Correct 21 ms 9944 KB Output is correct
7 Correct 20 ms 9052 KB Output is correct
8 Correct 18 ms 9008 KB Output is correct
9 Correct 19 ms 8856 KB Output is correct
10 Correct 20 ms 9312 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 10 ms 9680 KB Output is correct
13 Correct 11 ms 9588 KB Output is correct
14 Correct 11 ms 9680 KB Output is correct
15 Correct 11 ms 9560 KB Output is correct
16 Correct 11 ms 9704 KB Output is correct
17 Correct 10 ms 9680 KB Output is correct
18 Correct 11 ms 9680 KB Output is correct
19 Correct 10 ms 9676 KB Output is correct
20 Incorrect 1 ms 4952 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 5208 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 5044 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 5040 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4956 KB Output is correct
13 Correct 1 ms 4888 KB Output is correct
14 Correct 1 ms 4952 KB Output is correct
15 Correct 1 ms 4952 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 1 ms 4956 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 1 ms 4956 KB Output is correct
20 Correct 1 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 1 ms 4956 KB Output is correct
23 Correct 1 ms 4956 KB Output is correct
24 Correct 1 ms 4956 KB Output is correct
25 Correct 1 ms 4956 KB Output is correct
26 Correct 1 ms 4956 KB Output is correct
27 Correct 2 ms 4956 KB Output is correct
28 Correct 2 ms 4956 KB Output is correct
29 Correct 1 ms 4956 KB Output is correct
30 Correct 2 ms 4956 KB Output is correct
31 Correct 2 ms 4956 KB Output is correct
32 Correct 1 ms 4956 KB Output is correct
33 Correct 2 ms 4956 KB Output is correct
34 Correct 2 ms 4956 KB Output is correct
35 Correct 1 ms 4956 KB Output is correct
36 Correct 1 ms 4956 KB Output is correct
37 Correct 1 ms 4956 KB Output is correct
38 Correct 1 ms 4956 KB Output is correct
39 Correct 1 ms 4956 KB Output is correct
40 Correct 1 ms 4956 KB Output is correct
41 Correct 1 ms 4952 KB Output is correct
42 Correct 1 ms 4956 KB Output is correct
43 Correct 1 ms 4956 KB Output is correct
44 Correct 1 ms 4956 KB Output is correct
45 Correct 1 ms 4956 KB Output is correct
46 Correct 1 ms 4956 KB Output is correct
47 Correct 1 ms 4956 KB Output is correct
48 Correct 1 ms 4956 KB Output is correct
49 Correct 1 ms 4956 KB Output is correct
50 Correct 1 ms 4956 KB Output is correct
51 Correct 1 ms 4956 KB Output is correct
52 Incorrect 1 ms 5048 KB Output isn't correct
53 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 12184 KB Output is correct
2 Correct 31 ms 11868 KB Output is correct
3 Correct 23 ms 11204 KB Output is correct
4 Correct 6 ms 6100 KB Output is correct
5 Correct 4 ms 5468 KB Output is correct
6 Correct 9 ms 6492 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 17 ms 8024 KB Output is correct
9 Correct 22 ms 9816 KB Output is correct
10 Correct 1 ms 4952 KB Output is correct
11 Correct 28 ms 9812 KB Output is correct
12 Correct 33 ms 10784 KB Output is correct
13 Correct 2 ms 4952 KB Output is correct
14 Correct 1 ms 5208 KB Output is correct
15 Correct 1 ms 4952 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 2 ms 5044 KB Output is correct
18 Correct 1 ms 4956 KB Output is correct
19 Correct 1 ms 5040 KB Output is correct
20 Correct 1 ms 4956 KB Output is correct
21 Correct 1 ms 4956 KB Output is correct
22 Correct 1 ms 4956 KB Output is correct
23 Correct 1 ms 4956 KB Output is correct
24 Correct 1 ms 4956 KB Output is correct
25 Correct 1 ms 4956 KB Output is correct
26 Correct 1 ms 4888 KB Output is correct
27 Correct 1 ms 4952 KB Output is correct
28 Correct 1 ms 4952 KB Output is correct
29 Correct 1 ms 4956 KB Output is correct
30 Correct 1 ms 4956 KB Output is correct
31 Correct 1 ms 4956 KB Output is correct
32 Correct 1 ms 4956 KB Output is correct
33 Correct 1 ms 4956 KB Output is correct
34 Correct 1 ms 4956 KB Output is correct
35 Correct 1 ms 4956 KB Output is correct
36 Correct 1 ms 4956 KB Output is correct
37 Correct 1 ms 4956 KB Output is correct
38 Correct 1 ms 4956 KB Output is correct
39 Correct 31 ms 12116 KB Output is correct
40 Correct 32 ms 12108 KB Output is correct
41 Correct 23 ms 11352 KB Output is correct
42 Correct 5 ms 5980 KB Output is correct
43 Correct 1 ms 4956 KB Output is correct
44 Correct 1 ms 4956 KB Output is correct
45 Correct 1 ms 4956 KB Output is correct
46 Correct 1 ms 4952 KB Output is correct
47 Correct 1 ms 4952 KB Output is correct
48 Correct 1 ms 4952 KB Output is correct
49 Correct 1 ms 4956 KB Output is correct
50 Correct 1 ms 4956 KB Output is correct
51 Correct 1 ms 4956 KB Output is correct
52 Correct 2 ms 4968 KB Output is correct
53 Correct 1 ms 4956 KB Output is correct
54 Correct 1 ms 4956 KB Output is correct
55 Correct 1 ms 4956 KB Output is correct
56 Correct 1 ms 4956 KB Output is correct
57 Correct 41 ms 9408 KB Output is correct
58 Correct 38 ms 9508 KB Output is correct
59 Correct 40 ms 9436 KB Output is correct
60 Correct 41 ms 9388 KB Output is correct
61 Correct 38 ms 9404 KB Output is correct
62 Correct 38 ms 9296 KB Output is correct
63 Correct 36 ms 9040 KB Output is correct
64 Correct 36 ms 9040 KB Output is correct
65 Correct 38 ms 9260 KB Output is correct
66 Correct 40 ms 9524 KB Output is correct
67 Correct 42 ms 9368 KB Output is correct
68 Correct 41 ms 9300 KB Output is correct
69 Correct 41 ms 9552 KB Output is correct
70 Correct 41 ms 9416 KB Output is correct
71 Correct 2 ms 4956 KB Output is correct
72 Correct 2 ms 5072 KB Output is correct
73 Correct 2 ms 4956 KB Output is correct
74 Correct 2 ms 4956 KB Output is correct
75 Correct 2 ms 4956 KB Output is correct
76 Correct 2 ms 4956 KB Output is correct
77 Correct 2 ms 4952 KB Output is correct
78 Correct 2 ms 4952 KB Output is correct
79 Correct 2 ms 4956 KB Output is correct
80 Correct 40 ms 9712 KB Output is correct
81 Correct 49 ms 9300 KB Output is correct
82 Correct 40 ms 9284 KB Output is correct
83 Correct 37 ms 9040 KB Output is correct
84 Correct 2 ms 4956 KB Output is correct
85 Correct 2 ms 4956 KB Output is correct
86 Correct 2 ms 4956 KB Output is correct
87 Correct 2 ms 4956 KB Output is correct
88 Correct 2 ms 4956 KB Output is correct
89 Correct 2 ms 4956 KB Output is correct
90 Correct 3 ms 4952 KB Output is correct
91 Correct 2 ms 4956 KB Output is correct
92 Correct 2 ms 4956 KB Output is correct
93 Correct 2 ms 4956 KB Output is correct
94 Correct 1 ms 4956 KB Output is correct
95 Correct 1 ms 4956 KB Output is correct
96 Correct 1 ms 4956 KB Output is correct
97 Correct 1 ms 4956 KB Output is correct
98 Correct 1 ms 4956 KB Output is correct
99 Correct 1 ms 4952 KB Output is correct
100 Correct 1 ms 4956 KB Output is correct
101 Correct 1 ms 4956 KB Output is correct
102 Correct 1 ms 4956 KB Output is correct
103 Correct 1 ms 4956 KB Output is correct
104 Correct 4 ms 5468 KB Output is correct
105 Correct 9 ms 6492 KB Output is correct
106 Correct 1 ms 4956 KB Output is correct
107 Correct 17 ms 7988 KB Output is correct
108 Correct 22 ms 9820 KB Output is correct
109 Correct 1 ms 4956 KB Output is correct
110 Correct 30 ms 10076 KB Output is correct
111 Correct 35 ms 11040 KB Output is correct
112 Correct 2 ms 4956 KB Output is correct
113 Correct 60 ms 16096 KB Output is correct
114 Correct 20 ms 9016 KB Output is correct
115 Correct 19 ms 9092 KB Output is correct
116 Correct 21 ms 8972 KB Output is correct
117 Correct 20 ms 9096 KB Output is correct
118 Correct 19 ms 9088 KB Output is correct
119 Correct 21 ms 9944 KB Output is correct
120 Correct 20 ms 9052 KB Output is correct
121 Correct 18 ms 9008 KB Output is correct
122 Correct 19 ms 8856 KB Output is correct
123 Correct 20 ms 9312 KB Output is correct
124 Correct 1 ms 4956 KB Output is correct
125 Correct 10 ms 9680 KB Output is correct
126 Correct 11 ms 9588 KB Output is correct
127 Correct 11 ms 9680 KB Output is correct
128 Correct 11 ms 9560 KB Output is correct
129 Correct 11 ms 9704 KB Output is correct
130 Correct 10 ms 9680 KB Output is correct
131 Correct 11 ms 9680 KB Output is correct
132 Correct 10 ms 9676 KB Output is correct
133 Incorrect 1 ms 4952 KB Output isn't correct
134 Halted 0 ms 0 KB -