oj.uz

답안 #970548

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
970548 2024-04-26T17:14:17 Z yeediot 꿈 (IOI13_dreaming) C++17
47 / 100
 57 ms 15880 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>>());
    assert(m+(int)v.size()-1==n-1);
    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(1,1);
    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 39 ms 13656 KB Output is correct
2 Correct 33 ms 14960 KB Output is correct
3 Correct 23 ms 11092 KB Output is correct
4 Correct 5 ms 5980 KB Output is correct
5 Correct 6 ms 5560 KB Output is correct
6 Correct 11 ms 7132 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 9860 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 35 ms 10576 KB Output is correct
12 Correct 36 ms 12728 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 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 5064 KB Output is correct
10 Correct 2 ms 5208 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 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 1 ms 4956 KB Output is correct
16 Correct 1 ms 4960 KB Output is correct
17 Correct 1 ms 4960 KB Output is correct
18 Correct 1 ms 4960 KB Output is correct
19 Correct 2 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 39 ms 13656 KB Output is correct
2 Correct 33 ms 14960 KB Output is correct
3 Correct 23 ms 11092 KB Output is correct
4 Correct 5 ms 5980 KB Output is correct
5 Correct 6 ms 5560 KB Output is correct
6 Correct 11 ms 7132 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 9860 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 35 ms 10576 KB Output is correct
12 Correct 36 ms 12728 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 1 ms 4956 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 2 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 5064 KB Output is correct
23 Correct 2 ms 5208 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 1 ms 4956 KB Output is correct
28 Correct 1 ms 4956 KB Output is correct
29 Correct 1 ms 4960 KB Output is correct
30 Correct 1 ms 4960 KB Output is correct
31 Correct 1 ms 4960 KB Output is correct
32 Correct 2 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 37 ms 13532 KB Output is correct
40 Correct 34 ms 14984 KB Output is correct
41 Correct 22 ms 11356 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 4956 KB Output is correct
47 Correct 1 ms 4956 KB Output is correct
48 Correct 1 ms 5208 KB Output is correct
49 Correct 1 ms 4952 KB Output is correct
50 Correct 2 ms 5208 KB Output is correct
51 Correct 1 ms 4956 KB Output is correct
52 Correct 1 ms 5060 KB Output is correct
53 Correct 1 ms 4960 KB Output is correct
54 Correct 1 ms 4968 KB Output is correct
55 Correct 1 ms 4956 KB Output is correct
56 Correct 1 ms 4956 KB Output is correct
57 Correct 37 ms 9552 KB Output is correct
58 Correct 37 ms 9300 KB Output is correct
59 Correct 39 ms 9480 KB Output is correct
60 Correct 39 ms 9508 KB Output is correct
61 Correct 38 ms 9444 KB Output is correct
62 Correct 39 ms 9552 KB Output is correct
63 Correct 35 ms 9040 KB Output is correct
64 Correct 36 ms 9040 KB Output is correct
65 Correct 40 ms 9300 KB Output is correct
66 Correct 40 ms 9424 KB Output is correct
67 Correct 45 ms 9556 KB Output is correct
68 Correct 57 ms 9300 KB Output is correct
69 Correct 47 ms 9648 KB Output is correct
70 Correct 48 ms 9296 KB Output is correct
71 Correct 1 ms 5060 KB Output is correct
72 Correct 2 ms 5212 KB Output is correct
73 Correct 2 ms 4956 KB Output is correct
74 Correct 2 ms 5064 KB Output is correct
75 Correct 2 ms 5464 KB Output is correct
76 Correct 2 ms 4956 KB Output is correct
77 Correct 2 ms 4956 KB Output is correct
78 Correct 2 ms 4956 KB Output is correct
79 Correct 3 ms 4956 KB Output is correct
80 Correct 43 ms 9632 KB Output is correct
81 Correct 47 ms 9304 KB Output is correct
82 Correct 40 ms 9436 KB Output is correct
83 Correct 40 ms 9160 KB Output is correct
84 Correct 3 ms 4952 KB Output is correct
85 Correct 2 ms 4956 KB Output is correct
86 Correct 2 ms 5072 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 2 ms 4956 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 4956 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 6 ms 5720 KB Output is correct
105 Correct 9 ms 7004 KB Output is correct
106 Correct 2 ms 4956 KB Output is correct
107 Correct 17 ms 7772 KB Output is correct
108 Correct 21 ms 9820 KB Output is correct
109 Correct 1 ms 4956 KB Output is correct
110 Correct 30 ms 10648 KB Output is correct
111 Correct 34 ms 12892 KB Output is correct
112 Correct 2 ms 5072 KB Output is correct
113 Correct 47 ms 15880 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 9100 KB Output is correct
2 Correct 21 ms 9088 KB Output is correct
3 Correct 19 ms 8912 KB Output is correct
4 Correct 19 ms 8976 KB Output is correct
5 Correct 19 ms 8976 KB Output is correct
6 Correct 20 ms 9936 KB Output is correct
7 Correct 20 ms 9052 KB Output is correct
8 Correct 21 ms 8864 KB Output is correct
9 Correct 19 ms 8884 KB Output is correct
10 Correct 20 ms 9316 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 11 ms 9752 KB Output is correct
13 Correct 11 ms 9680 KB Output is correct
14 Correct 11 ms 9544 KB Output is correct
15 Correct 11 ms 9684 KB Output is correct
16 Correct 11 ms 9680 KB Output is correct
17 Correct 10 ms 9688 KB Output is correct
18 Correct 11 ms 9684 KB Output is correct
19 Correct 11 ms 9560 KB Output is correct
20 Incorrect 1 ms 4968 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 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 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 5064 KB Output is correct
10 Correct 2 ms 5208 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 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 1 ms 4956 KB Output is correct
16 Correct 1 ms 4960 KB Output is correct
17 Correct 1 ms 4960 KB Output is correct
18 Correct 1 ms 4960 KB Output is correct
19 Correct 2 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 2 ms 4956 KB Output is correct
27 Correct 2 ms 5096 KB Output is correct
28 Correct 2 ms 4956 KB Output is correct
29 Correct 1 ms 4960 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 4964 KB Output is correct
34 Correct 2 ms 4956 KB Output is correct
35 Correct 1 ms 4964 KB Output is correct
36 Correct 1 ms 4956 KB Output is correct
37 Correct 1 ms 4964 KB Output is correct
38 Correct 1 ms 5208 KB Output is correct
39 Correct 1 ms 5152 KB Output is correct
40 Correct 1 ms 4956 KB Output is correct
41 Correct 1 ms 4956 KB Output is correct
42 Correct 1 ms 5208 KB Output is correct
43 Correct 1 ms 4956 KB Output is correct
44 Correct 1 ms 4952 KB Output is correct
45 Correct 1 ms 4952 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 4952 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 4956 KB Output isn't correct
53 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 39 ms 13656 KB Output is correct
2 Correct 33 ms 14960 KB Output is correct
3 Correct 23 ms 11092 KB Output is correct
4 Correct 5 ms 5980 KB Output is correct
5 Correct 6 ms 5560 KB Output is correct
6 Correct 11 ms 7132 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 9860 KB Output is correct
10 Correct 1 ms 4956 KB Output is correct
11 Correct 35 ms 10576 KB Output is correct
12 Correct 36 ms 12728 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 1 ms 4956 KB Output is correct
16 Correct 1 ms 4956 KB Output is correct
17 Correct 2 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 5064 KB Output is correct
23 Correct 2 ms 5208 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 1 ms 4956 KB Output is correct
28 Correct 1 ms 4956 KB Output is correct
29 Correct 1 ms 4960 KB Output is correct
30 Correct 1 ms 4960 KB Output is correct
31 Correct 1 ms 4960 KB Output is correct
32 Correct 2 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 37 ms 13532 KB Output is correct
40 Correct 34 ms 14984 KB Output is correct
41 Correct 22 ms 11356 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 4956 KB Output is correct
47 Correct 1 ms 4956 KB Output is correct
48 Correct 1 ms 5208 KB Output is correct
49 Correct 1 ms 4952 KB Output is correct
50 Correct 2 ms 5208 KB Output is correct
51 Correct 1 ms 4956 KB Output is correct
52 Correct 1 ms 5060 KB Output is correct
53 Correct 1 ms 4960 KB Output is correct
54 Correct 1 ms 4968 KB Output is correct
55 Correct 1 ms 4956 KB Output is correct
56 Correct 1 ms 4956 KB Output is correct
57 Correct 37 ms 9552 KB Output is correct
58 Correct 37 ms 9300 KB Output is correct
59 Correct 39 ms 9480 KB Output is correct
60 Correct 39 ms 9508 KB Output is correct
61 Correct 38 ms 9444 KB Output is correct
62 Correct 39 ms 9552 KB Output is correct
63 Correct 35 ms 9040 KB Output is correct
64 Correct 36 ms 9040 KB Output is correct
65 Correct 40 ms 9300 KB Output is correct
66 Correct 40 ms 9424 KB Output is correct
67 Correct 45 ms 9556 KB Output is correct
68 Correct 57 ms 9300 KB Output is correct
69 Correct 47 ms 9648 KB Output is correct
70 Correct 48 ms 9296 KB Output is correct
71 Correct 1 ms 5060 KB Output is correct
72 Correct 2 ms 5212 KB Output is correct
73 Correct 2 ms 4956 KB Output is correct
74 Correct 2 ms 5064 KB Output is correct
75 Correct 2 ms 5464 KB Output is correct
76 Correct 2 ms 4956 KB Output is correct
77 Correct 2 ms 4956 KB Output is correct
78 Correct 2 ms 4956 KB Output is correct
79 Correct 3 ms 4956 KB Output is correct
80 Correct 43 ms 9632 KB Output is correct
81 Correct 47 ms 9304 KB Output is correct
82 Correct 40 ms 9436 KB Output is correct
83 Correct 40 ms 9160 KB Output is correct
84 Correct 3 ms 4952 KB Output is correct
85 Correct 2 ms 4956 KB Output is correct
86 Correct 2 ms 5072 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 2 ms 4956 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 4956 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 6 ms 5720 KB Output is correct
105 Correct 9 ms 7004 KB Output is correct
106 Correct 2 ms 4956 KB Output is correct
107 Correct 17 ms 7772 KB Output is correct
108 Correct 21 ms 9820 KB Output is correct
109 Correct 1 ms 4956 KB Output is correct
110 Correct 30 ms 10648 KB Output is correct
111 Correct 34 ms 12892 KB Output is correct
112 Correct 2 ms 5072 KB Output is correct
113 Correct 47 ms 15880 KB Output is correct
114 Correct 19 ms 9100 KB Output is correct
115 Correct 21 ms 9088 KB Output is correct
116 Correct 19 ms 8912 KB Output is correct
117 Correct 19 ms 8976 KB Output is correct
118 Correct 19 ms 8976 KB Output is correct
119 Correct 20 ms 9936 KB Output is correct
120 Correct 20 ms 9052 KB Output is correct
121 Correct 21 ms 8864 KB Output is correct
122 Correct 19 ms 8884 KB Output is correct
123 Correct 20 ms 9316 KB Output is correct
124 Correct 1 ms 4956 KB Output is correct
125 Correct 11 ms 9752 KB Output is correct
126 Correct 11 ms 9680 KB Output is correct
127 Correct 11 ms 9544 KB Output is correct
128 Correct 11 ms 9684 KB Output is correct
129 Correct 11 ms 9680 KB Output is correct
130 Correct 10 ms 9688 KB Output is correct
131 Correct 11 ms 9684 KB Output is correct
132 Correct 11 ms 9560 KB Output is correct
133 Incorrect 1 ms 4968 KB Output isn't correct
134 Halted 0 ms 0 KB -