oj.uz

답안 #724430

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
724430 2023-04-15T08:42:46 Z Dan4Life 꿈 (IOI13_dreaming) C++17
47 / 100
 1000 ms 17836 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)2e9;
int n, m, l;
vector<int> path;
vector<pair<int,int>> v, adj[mxN];
int vis[mxN];
int dis[mxN];
int CC=1;

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, diam=dis1;
    for(auto u : path){
        dis1-=u, dis2+=u;
        ans = min(ans, max(dis1,dis2));
    }
    v.pb({ans,diam});
}

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, ans2=0;
    sort(all(v));
    for(int i = 0; i < sz(v); i++)
        ans2 = max(ans2, v[i].se);
    for(int i = 0; i < sz(v); i++){
        int d1 = v[i].fi, d2 = -1;
        vector<int> xd; xd.clear();
        for(int j = sz(v)-1; j>=0; j--){
            if(i==j) continue;
            xd.pb(v[j].fi);
            if(sz(xd)==2) break;
        }
        int sum = 0;
        if(sz(xd)>=1) sum = max(sum, d1+l+xd[0]);
        if(sz(xd)>=2) sum = max(sum, xd[0]+l*2+xd[1]);
        if(sz(xd)>=1) ans = min(ans, sum);
    }
    return max(ans, ans2);
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:70:27: warning: unused variable 'd2' [-Wunused-variable]
   70 |         int d1 = v[i].fi, d2 = -1;
      |                           ^~
dreaming.cpp: In function 'void calcDiam(int)':
dreaming.cpp:46:23: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
   46 |     path.clear(); dfs2(a,-1,b);
      |                   ~~~~^~~~~~~~
dreaming.cpp:46:23: 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 49 ms 16240 KB Output is correct
2 Correct 57 ms 16204 KB Output is correct
3 Correct 41 ms 11724 KB Output is correct
4 Correct 8 ms 4804 KB Output is correct
5 Correct 6 ms 3668 KB Output is correct
6 Correct 12 ms 5716 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 28 ms 7248 KB Output is correct
9 Correct 32 ms 9420 KB Output is correct
10 Correct 2 ms 2748 KB Output is correct
11 Correct 47 ms 11504 KB Output is correct
12 Correct 64 ms 13836 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 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2664 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 2 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 2 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 3 ms 2660 KB Output is correct
17 Correct 2 ms 2668 KB Output is correct
18 Correct 2 ms 2644 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 2668 KB Output is correct
23 Correct 1 ms 2644 KB Output is correct
24 Correct 2 ms 2664 KB Output is correct
25 Correct 2 ms 2664 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 49 ms 16240 KB Output is correct
2 Correct 57 ms 16204 KB Output is correct
3 Correct 41 ms 11724 KB Output is correct
4 Correct 8 ms 4804 KB Output is correct
5 Correct 6 ms 3668 KB Output is correct
6 Correct 12 ms 5716 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 28 ms 7248 KB Output is correct
9 Correct 32 ms 9420 KB Output is correct
10 Correct 2 ms 2748 KB Output is correct
11 Correct 47 ms 11504 KB Output is correct
12 Correct 64 ms 13836 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 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2668 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2664 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 2 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 2 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 3 ms 2660 KB Output is correct
30 Correct 2 ms 2668 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2668 KB Output is correct
36 Correct 1 ms 2644 KB Output is correct
37 Correct 2 ms 2664 KB Output is correct
38 Correct 2 ms 2664 KB Output is correct
39 Correct 49 ms 16280 KB Output is correct
40 Correct 47 ms 16332 KB Output is correct
41 Correct 30 ms 11628 KB Output is correct
42 Correct 7 ms 4596 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 2 ms 2644 KB Output is correct
45 Correct 2 ms 2664 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 2 ms 2644 KB Output is correct
48 Correct 2 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 2 ms 2644 KB Output is correct
52 Correct 1 ms 2644 KB Output is correct
53 Correct 2 ms 2660 KB Output is correct
54 Correct 1 ms 2664 KB Output is correct
55 Correct 2 ms 2688 KB Output is correct
56 Correct 2 ms 2644 KB Output is correct
57 Correct 59 ms 9872 KB Output is correct
58 Correct 67 ms 10056 KB Output is correct
59 Correct 59 ms 9924 KB Output is correct
60 Correct 68 ms 9916 KB Output is correct
61 Correct 55 ms 9968 KB Output is correct
62 Correct 61 ms 9960 KB Output is correct
63 Correct 55 ms 9528 KB Output is correct
64 Correct 56 ms 9632 KB Output is correct
65 Correct 60 ms 9848 KB Output is correct
66 Correct 49 ms 9860 KB Output is correct
67 Correct 61 ms 9800 KB Output is correct
68 Correct 65 ms 9916 KB Output is correct
69 Correct 65 ms 10188 KB Output is correct
70 Correct 71 ms 10104 KB Output is correct
71 Correct 2 ms 2644 KB Output is correct
72 Correct 3 ms 2804 KB Output is correct
73 Correct 4 ms 2772 KB Output is correct
74 Correct 4 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 3 ms 2772 KB Output is correct
78 Correct 3 ms 2900 KB Output is correct
79 Correct 3 ms 2772 KB Output is correct
80 Correct 65 ms 9864 KB Output is correct
81 Correct 64 ms 9804 KB Output is correct
82 Correct 59 ms 9844 KB Output is correct
83 Correct 61 ms 9980 KB Output is correct
84 Correct 3 ms 2804 KB Output is correct
85 Correct 3 ms 2800 KB Output is correct
86 Correct 2 ms 2772 KB Output is correct
87 Correct 2 ms 2772 KB Output is correct
88 Correct 3 ms 2836 KB Output is correct
89 Correct 3 ms 2804 KB Output is correct
90 Correct 3 ms 2772 KB Output is correct
91 Correct 3 ms 2808 KB Output is correct
92 Correct 3 ms 2772 KB Output is correct
93 Correct 3 ms 2804 KB Output is correct
94 Correct 2 ms 2644 KB Output is correct
95 Correct 2 ms 2644 KB Output is correct
96 Correct 2 ms 2660 KB Output is correct
97 Correct 2 ms 2644 KB Output is correct
98 Correct 1 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 2664 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 3668 KB Output is correct
105 Correct 12 ms 5732 KB Output is correct
106 Correct 2 ms 2644 KB Output is correct
107 Correct 22 ms 7244 KB Output is correct
108 Correct 30 ms 9304 KB Output is correct
109 Correct 2 ms 2644 KB Output is correct
110 Correct 47 ms 11368 KB Output is correct
111 Correct 58 ms 13820 KB Output is correct
112 Correct 2 ms 2772 KB Output is correct
113 Correct 85 ms 17836 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1075 ms 6508 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
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 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2664 KB Output is correct
8 Correct 2 ms 2644 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 2 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 2 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 3 ms 2660 KB Output is correct
17 Correct 2 ms 2668 KB Output is correct
18 Correct 2 ms 2644 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 2668 KB Output is correct
23 Correct 1 ms 2644 KB Output is correct
24 Correct 2 ms 2664 KB Output is correct
25 Correct 2 ms 2664 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 3 ms 2772 KB Output is correct
31 Correct 4 ms 2864 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 3 ms 2772 KB Output is correct
34 Correct 4 ms 2772 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 2 ms 2660 KB Output is correct
38 Correct 2 ms 2644 KB Output is correct
39 Correct 2 ms 2772 KB Output is correct
40 Correct 2 ms 2644 KB Output is correct
41 Correct 2 ms 2664 KB Output is correct
42 Correct 2 ms 2644 KB Output is correct
43 Correct 2 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 1 ms 2644 KB Output is correct
47 Correct 2 ms 2644 KB Output is correct
48 Correct 2 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 2 ms 2772 KB Output is correct
52 Incorrect 1 ms 2644 KB Output isn't correct
53 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 49 ms 16240 KB Output is correct
2 Correct 57 ms 16204 KB Output is correct
3 Correct 41 ms 11724 KB Output is correct
4 Correct 8 ms 4804 KB Output is correct
5 Correct 6 ms 3668 KB Output is correct
6 Correct 12 ms 5716 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 28 ms 7248 KB Output is correct
9 Correct 32 ms 9420 KB Output is correct
10 Correct 2 ms 2748 KB Output is correct
11 Correct 47 ms 11504 KB Output is correct
12 Correct 64 ms 13836 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 2 ms 2644 KB Output is correct
17 Correct 2 ms 2644 KB Output is correct
18 Correct 2 ms 2668 KB Output is correct
19 Correct 2 ms 2644 KB Output is correct
20 Correct 2 ms 2664 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 2 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 2 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 3 ms 2660 KB Output is correct
30 Correct 2 ms 2668 KB Output is correct
31 Correct 2 ms 2644 KB Output is correct
32 Correct 2 ms 2644 KB Output is correct
33 Correct 2 ms 2644 KB Output is correct
34 Correct 2 ms 2644 KB Output is correct
35 Correct 2 ms 2668 KB Output is correct
36 Correct 1 ms 2644 KB Output is correct
37 Correct 2 ms 2664 KB Output is correct
38 Correct 2 ms 2664 KB Output is correct
39 Correct 49 ms 16280 KB Output is correct
40 Correct 47 ms 16332 KB Output is correct
41 Correct 30 ms 11628 KB Output is correct
42 Correct 7 ms 4596 KB Output is correct
43 Correct 2 ms 2644 KB Output is correct
44 Correct 2 ms 2644 KB Output is correct
45 Correct 2 ms 2664 KB Output is correct
46 Correct 2 ms 2644 KB Output is correct
47 Correct 2 ms 2644 KB Output is correct
48 Correct 2 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 2 ms 2644 KB Output is correct
52 Correct 1 ms 2644 KB Output is correct
53 Correct 2 ms 2660 KB Output is correct
54 Correct 1 ms 2664 KB Output is correct
55 Correct 2 ms 2688 KB Output is correct
56 Correct 2 ms 2644 KB Output is correct
57 Correct 59 ms 9872 KB Output is correct
58 Correct 67 ms 10056 KB Output is correct
59 Correct 59 ms 9924 KB Output is correct
60 Correct 68 ms 9916 KB Output is correct
61 Correct 55 ms 9968 KB Output is correct
62 Correct 61 ms 9960 KB Output is correct
63 Correct 55 ms 9528 KB Output is correct
64 Correct 56 ms 9632 KB Output is correct
65 Correct 60 ms 9848 KB Output is correct
66 Correct 49 ms 9860 KB Output is correct
67 Correct 61 ms 9800 KB Output is correct
68 Correct 65 ms 9916 KB Output is correct
69 Correct 65 ms 10188 KB Output is correct
70 Correct 71 ms 10104 KB Output is correct
71 Correct 2 ms 2644 KB Output is correct
72 Correct 3 ms 2804 KB Output is correct
73 Correct 4 ms 2772 KB Output is correct
74 Correct 4 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 3 ms 2772 KB Output is correct
78 Correct 3 ms 2900 KB Output is correct
79 Correct 3 ms 2772 KB Output is correct
80 Correct 65 ms 9864 KB Output is correct
81 Correct 64 ms 9804 KB Output is correct
82 Correct 59 ms 9844 KB Output is correct
83 Correct 61 ms 9980 KB Output is correct
84 Correct 3 ms 2804 KB Output is correct
85 Correct 3 ms 2800 KB Output is correct
86 Correct 2 ms 2772 KB Output is correct
87 Correct 2 ms 2772 KB Output is correct
88 Correct 3 ms 2836 KB Output is correct
89 Correct 3 ms 2804 KB Output is correct
90 Correct 3 ms 2772 KB Output is correct
91 Correct 3 ms 2808 KB Output is correct
92 Correct 3 ms 2772 KB Output is correct
93 Correct 3 ms 2804 KB Output is correct
94 Correct 2 ms 2644 KB Output is correct
95 Correct 2 ms 2644 KB Output is correct
96 Correct 2 ms 2660 KB Output is correct
97 Correct 2 ms 2644 KB Output is correct
98 Correct 1 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 2664 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 3668 KB Output is correct
105 Correct 12 ms 5732 KB Output is correct
106 Correct 2 ms 2644 KB Output is correct
107 Correct 22 ms 7244 KB Output is correct
108 Correct 30 ms 9304 KB Output is correct
109 Correct 2 ms 2644 KB Output is correct
110 Correct 47 ms 11368 KB Output is correct
111 Correct 58 ms 13820 KB Output is correct
112 Correct 2 ms 2772 KB Output is correct
113 Correct 85 ms 17836 KB Output is correct
114 Execution timed out 1075 ms 6508 KB Time limit exceeded
115 Halted 0 ms 0 KB -