oj.uz

답안 #895905

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
895905 2023-12-31T04:23:24 Z ByeWorld 꿈 (IOI13_dreaming) C++14
47 / 100
 56 ms 26356 KB 
#include "dreaming.h"
#include <bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define ll long long
using namespace std;
typedef pair<int,int> pii;
const int MAXN = 2e5+10;
const int INF = 2e9;

int n, m, l, ans;
vector <pii> adj[MAXN];
int cc[MAXN], mx[MAXN];

int dw[MAXN], up[MAXN]; // max ke bawah, ke par (atas)
void dfs(int nw, int par){
	for(auto ed : adj[nw]){
		int nx = ed.fi; int wei = ed.se;
		dw[nw] = max(dw[nw], 0);
		if(nx==par) continue;
		dfs(nx, nw);
		dw[nw] = max(dw[nw], dw[nx]+wei);
	}
}

multiset <int> mul;
void bui(int nw, int par){
	for(auto ed : adj[nw]){ // build child nya aj
		int nx = ed.fi; int wei = ed.se;
		if(nx==par) continue; 
		//build
		mul.insert(dw[nx]+wei);
	}
	for(auto ed : adj[nw]){ 
		int nx = ed.fi; int wei = ed.se;
		if(nx==par) continue; 
		//build
		auto it = mul.find(dw[nx]+wei);
		mul.erase(it);

		int mx = up[nw]; // up skrg
		if(!mul.empty()){
			it = mul.end(); it--;
			mx = max(mx, (*it));
		}
		up[nx] = mx+wei; // maxnya + wei buat ke child
		//cout << nx << ' '<< up[nx] << " p\n";

		mul.insert(dw[nx]+wei);
	}

	mul.clear();
	for(auto ed : adj[nw]){ // build child nya aj
		int nx = ed.fi; int wei = ed.se;
		if(nx==par) continue; 
		bui(nx, nw);
	}
	ans = max(ans, up[nw]);
}

int root;
void rep(int nw, int par){
	cc[root] = min(cc[root], mx[nw]);
	for(auto ed : adj[nw]){ // build child nya aj
		int nx = ed.fi; int wei = ed.se;
		if(nx==par) continue; 
		rep(nx, nw);
	}
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
	n = N; m = M; l = L;
	for(int i=0; i<m; i++){
		adj[A[i]+1].pb({B[i]+1, T[i]});
		adj[B[i]+1].pb({A[i]+1, T[i]});
	}
	for(int i=1; i<=n; i++){
		mx[i] = INF; cc[i] = INF;
	}
	for(int i=1; i<=n; i++){
		if(up[i]!=0) continue;
		dfs(i, 0);
		bui(i, 0);
	}
	for(int i=1; i<=n; i++){
		mx[i] = max(up[i], dw[i]);
	}

	vector <int> vec;
	for(int i=1; i<=n; i++){
		if(up[i]==0){
			root = i;
			rep(i, 0);
			vec.pb(cc[i]);
		}
	}
	//cout << vec[0] << ' ' << vec[1] << " p\n";
	ans = max(ans, vec[0]+vec[1]+l);
    return ans;
}

Compilation message

dreaming.cpp: In function 'void bui(int, int)':
dreaming.cpp:55:23: warning: unused variable 'wei' [-Wunused-variable]
   55 |   int nx = ed.fi; int wei = ed.se;
      |                       ^~~
dreaming.cpp: In function 'void rep(int, int)':
dreaming.cpp:66:23: warning: unused variable 'wei' [-Wunused-variable]
   66 |   int nx = ed.fi; int wei = ed.se;
      |                       ^~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 18512 KB Output is correct
2 Correct 41 ms 18000 KB Output is correct
3 Correct 26 ms 17496 KB Output is correct
4 Correct 9 ms 10584 KB Output is correct
5 Correct 7 ms 9820 KB Output is correct
6 Correct 11 ms 11100 KB Output is correct
7 Correct 2 ms 9052 KB Output is correct
8 Correct 19 ms 13496 KB Output is correct
9 Correct 31 ms 16536 KB Output is correct
10 Correct 2 ms 9308 KB Output is correct
11 Correct 42 ms 16696 KB Output is correct
12 Correct 39 ms 18260 KB Output is correct
13 Correct 2 ms 9304 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 9052 KB Output is correct
2 Correct 2 ms 9052 KB Output is correct
3 Correct 2 ms 9048 KB Output is correct
4 Correct 2 ms 9052 KB Output is correct
5 Correct 2 ms 9052 KB Output is correct
6 Correct 3 ms 9052 KB Output is correct
7 Correct 2 ms 9052 KB Output is correct
8 Correct 2 ms 9052 KB Output is correct
9 Correct 2 ms 9052 KB Output is correct
10 Correct 2 ms 9052 KB Output is correct
11 Correct 2 ms 9052 KB Output is correct
12 Correct 2 ms 9052 KB Output is correct
13 Correct 2 ms 9052 KB Output is correct
14 Correct 2 ms 9052 KB Output is correct
15 Correct 2 ms 9144 KB Output is correct
16 Correct 2 ms 9052 KB Output is correct
17 Correct 2 ms 9140 KB Output is correct
18 Correct 2 ms 9052 KB Output is correct
19 Correct 2 ms 9052 KB Output is correct
20 Correct 2 ms 9052 KB Output is correct
21 Correct 2 ms 9052 KB Output is correct
22 Correct 2 ms 9052 KB Output is correct
23 Correct 2 ms 9052 KB Output is correct
24 Correct 2 ms 9052 KB Output is correct
25 Correct 2 ms 9052 KB Output is correct

Subtask #3
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 18512 KB Output is correct
2 Correct 41 ms 18000 KB Output is correct
3 Correct 26 ms 17496 KB Output is correct
4 Correct 9 ms 10584 KB Output is correct
5 Correct 7 ms 9820 KB Output is correct
6 Correct 11 ms 11100 KB Output is correct
7 Correct 2 ms 9052 KB Output is correct
8 Correct 19 ms 13496 KB Output is correct
9 Correct 31 ms 16536 KB Output is correct
10 Correct 2 ms 9308 KB Output is correct
11 Correct 42 ms 16696 KB Output is correct
12 Correct 39 ms 18260 KB Output is correct
13 Correct 2 ms 9304 KB Output is correct
14 Correct 2 ms 9052 KB Output is correct
15 Correct 2 ms 9052 KB Output is correct
16 Correct 2 ms 9048 KB Output is correct
17 Correct 2 ms 9052 KB Output is correct
18 Correct 2 ms 9052 KB Output is correct
19 Correct 3 ms 9052 KB Output is correct
20 Correct 2 ms 9052 KB Output is correct
21 Correct 2 ms 9052 KB Output is correct
22 Correct 2 ms 9052 KB Output is correct
23 Correct 2 ms 9052 KB Output is correct
24 Correct 2 ms 9052 KB Output is correct
25 Correct 2 ms 9052 KB Output is correct
26 Correct 2 ms 9052 KB Output is correct
27 Correct 2 ms 9052 KB Output is correct
28 Correct 2 ms 9144 KB Output is correct
29 Correct 2 ms 9052 KB Output is correct
30 Correct 2 ms 9140 KB Output is correct
31 Correct 2 ms 9052 KB Output is correct
32 Correct 2 ms 9052 KB Output is correct
33 Correct 2 ms 9052 KB Output is correct
34 Correct 2 ms 9052 KB Output is correct
35 Correct 2 ms 9052 KB Output is correct
36 Correct 2 ms 9052 KB Output is correct
37 Correct 2 ms 9052 KB Output is correct
38 Correct 2 ms 9052 KB Output is correct
39 Correct 38 ms 19792 KB Output is correct
40 Correct 36 ms 19284 KB Output is correct
41 Correct 27 ms 18516 KB Output is correct
42 Correct 7 ms 10844 KB Output is correct
43 Correct 2 ms 9052 KB Output is correct
44 Correct 2 ms 9052 KB Output is correct
45 Correct 2 ms 9052 KB Output is correct
46 Correct 2 ms 9052 KB Output is correct
47 Correct 2 ms 9052 KB Output is correct
48 Correct 2 ms 9052 KB Output is correct
49 Correct 2 ms 9052 KB Output is correct
50 Correct 2 ms 9052 KB Output is correct
51 Correct 2 ms 9052 KB Output is correct
52 Correct 2 ms 9052 KB Output is correct
53 Correct 2 ms 9052 KB Output is correct
54 Correct 2 ms 9052 KB Output is correct
55 Correct 2 ms 9048 KB Output is correct
56 Correct 2 ms 9052 KB Output is correct
57 Correct 42 ms 14528 KB Output is correct
58 Correct 42 ms 14608 KB Output is correct
59 Correct 45 ms 14684 KB Output is correct
60 Correct 46 ms 14904 KB Output is correct
61 Correct 49 ms 14676 KB Output is correct
62 Correct 44 ms 14672 KB Output is correct
63 Correct 41 ms 14416 KB Output is correct
64 Correct 42 ms 14680 KB Output is correct
65 Correct 43 ms 14684 KB Output is correct
66 Correct 44 ms 14684 KB Output is correct
67 Correct 43 ms 14672 KB Output is correct
68 Correct 46 ms 14672 KB Output is correct
69 Correct 45 ms 14932 KB Output is correct
70 Correct 51 ms 14936 KB Output is correct
71 Correct 2 ms 9052 KB Output is correct
72 Correct 3 ms 9308 KB Output is correct
73 Correct 3 ms 9308 KB Output is correct
74 Correct 3 ms 9304 KB Output is correct
75 Correct 3 ms 9304 KB Output is correct
76 Correct 3 ms 9308 KB Output is correct
77 Correct 3 ms 9308 KB Output is correct
78 Correct 3 ms 9304 KB Output is correct
79 Correct 3 ms 9308 KB Output is correct
80 Correct 50 ms 14672 KB Output is correct
81 Correct 43 ms 14684 KB Output is correct
82 Correct 45 ms 14672 KB Output is correct
83 Correct 49 ms 15184 KB Output is correct
84 Correct 3 ms 9308 KB Output is correct
85 Correct 3 ms 9308 KB Output is correct
86 Correct 3 ms 9308 KB Output is correct
87 Correct 3 ms 9308 KB Output is correct
88 Correct 3 ms 9308 KB Output is correct
89 Correct 3 ms 9308 KB Output is correct
90 Correct 3 ms 9272 KB Output is correct
91 Correct 3 ms 9272 KB Output is correct
92 Correct 3 ms 9308 KB Output is correct
93 Correct 3 ms 9296 KB Output is correct
94 Correct 2 ms 9052 KB Output is correct
95 Correct 2 ms 9052 KB Output is correct
96 Correct 2 ms 9140 KB Output is correct
97 Correct 2 ms 9052 KB Output is correct
98 Correct 2 ms 9260 KB Output is correct
99 Correct 2 ms 9048 KB Output is correct
100 Correct 2 ms 9052 KB Output is correct
101 Correct 2 ms 9052 KB Output is correct
102 Correct 2 ms 9052 KB Output is correct
103 Correct 2 ms 9052 KB Output is correct
104 Correct 6 ms 10072 KB Output is correct
105 Correct 11 ms 11612 KB Output is correct
106 Correct 2 ms 9052 KB Output is correct
107 Correct 19 ms 13628 KB Output is correct
108 Correct 26 ms 16476 KB Output is correct
109 Correct 2 ms 9304 KB Output is correct
110 Correct 35 ms 16672 KB Output is correct
111 Correct 37 ms 18160 KB Output is correct
112 Correct 2 ms 9308 KB Output is correct
113 Correct 56 ms 26356 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 14 ms 11612 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 9052 KB Output is correct
2 Correct 2 ms 9052 KB Output is correct
3 Correct 2 ms 9048 KB Output is correct
4 Correct 2 ms 9052 KB Output is correct
5 Correct 2 ms 9052 KB Output is correct
6 Correct 3 ms 9052 KB Output is correct
7 Correct 2 ms 9052 KB Output is correct
8 Correct 2 ms 9052 KB Output is correct
9 Correct 2 ms 9052 KB Output is correct
10 Correct 2 ms 9052 KB Output is correct
11 Correct 2 ms 9052 KB Output is correct
12 Correct 2 ms 9052 KB Output is correct
13 Correct 2 ms 9052 KB Output is correct
14 Correct 2 ms 9052 KB Output is correct
15 Correct 2 ms 9144 KB Output is correct
16 Correct 2 ms 9052 KB Output is correct
17 Correct 2 ms 9140 KB Output is correct
18 Correct 2 ms 9052 KB Output is correct
19 Correct 2 ms 9052 KB Output is correct
20 Correct 2 ms 9052 KB Output is correct
21 Correct 2 ms 9052 KB Output is correct
22 Correct 2 ms 9052 KB Output is correct
23 Correct 2 ms 9052 KB Output is correct
24 Correct 2 ms 9052 KB Output is correct
25 Correct 2 ms 9052 KB Output is correct
26 Correct 2 ms 9308 KB Output is correct
27 Correct 3 ms 9308 KB Output is correct
28 Correct 3 ms 9304 KB Output is correct
29 Incorrect 2 ms 9308 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 18512 KB Output is correct
2 Correct 41 ms 18000 KB Output is correct
3 Correct 26 ms 17496 KB Output is correct
4 Correct 9 ms 10584 KB Output is correct
5 Correct 7 ms 9820 KB Output is correct
6 Correct 11 ms 11100 KB Output is correct
7 Correct 2 ms 9052 KB Output is correct
8 Correct 19 ms 13496 KB Output is correct
9 Correct 31 ms 16536 KB Output is correct
10 Correct 2 ms 9308 KB Output is correct
11 Correct 42 ms 16696 KB Output is correct
12 Correct 39 ms 18260 KB Output is correct
13 Correct 2 ms 9304 KB Output is correct
14 Correct 2 ms 9052 KB Output is correct
15 Correct 2 ms 9052 KB Output is correct
16 Correct 2 ms 9048 KB Output is correct
17 Correct 2 ms 9052 KB Output is correct
18 Correct 2 ms 9052 KB Output is correct
19 Correct 3 ms 9052 KB Output is correct
20 Correct 2 ms 9052 KB Output is correct
21 Correct 2 ms 9052 KB Output is correct
22 Correct 2 ms 9052 KB Output is correct
23 Correct 2 ms 9052 KB Output is correct
24 Correct 2 ms 9052 KB Output is correct
25 Correct 2 ms 9052 KB Output is correct
26 Correct 2 ms 9052 KB Output is correct
27 Correct 2 ms 9052 KB Output is correct
28 Correct 2 ms 9144 KB Output is correct
29 Correct 2 ms 9052 KB Output is correct
30 Correct 2 ms 9140 KB Output is correct
31 Correct 2 ms 9052 KB Output is correct
32 Correct 2 ms 9052 KB Output is correct
33 Correct 2 ms 9052 KB Output is correct
34 Correct 2 ms 9052 KB Output is correct
35 Correct 2 ms 9052 KB Output is correct
36 Correct 2 ms 9052 KB Output is correct
37 Correct 2 ms 9052 KB Output is correct
38 Correct 2 ms 9052 KB Output is correct
39 Correct 38 ms 19792 KB Output is correct
40 Correct 36 ms 19284 KB Output is correct
41 Correct 27 ms 18516 KB Output is correct
42 Correct 7 ms 10844 KB Output is correct
43 Correct 2 ms 9052 KB Output is correct
44 Correct 2 ms 9052 KB Output is correct
45 Correct 2 ms 9052 KB Output is correct
46 Correct 2 ms 9052 KB Output is correct
47 Correct 2 ms 9052 KB Output is correct
48 Correct 2 ms 9052 KB Output is correct
49 Correct 2 ms 9052 KB Output is correct
50 Correct 2 ms 9052 KB Output is correct
51 Correct 2 ms 9052 KB Output is correct
52 Correct 2 ms 9052 KB Output is correct
53 Correct 2 ms 9052 KB Output is correct
54 Correct 2 ms 9052 KB Output is correct
55 Correct 2 ms 9048 KB Output is correct
56 Correct 2 ms 9052 KB Output is correct
57 Correct 42 ms 14528 KB Output is correct
58 Correct 42 ms 14608 KB Output is correct
59 Correct 45 ms 14684 KB Output is correct
60 Correct 46 ms 14904 KB Output is correct
61 Correct 49 ms 14676 KB Output is correct
62 Correct 44 ms 14672 KB Output is correct
63 Correct 41 ms 14416 KB Output is correct
64 Correct 42 ms 14680 KB Output is correct
65 Correct 43 ms 14684 KB Output is correct
66 Correct 44 ms 14684 KB Output is correct
67 Correct 43 ms 14672 KB Output is correct
68 Correct 46 ms 14672 KB Output is correct
69 Correct 45 ms 14932 KB Output is correct
70 Correct 51 ms 14936 KB Output is correct
71 Correct 2 ms 9052 KB Output is correct
72 Correct 3 ms 9308 KB Output is correct
73 Correct 3 ms 9308 KB Output is correct
74 Correct 3 ms 9304 KB Output is correct
75 Correct 3 ms 9304 KB Output is correct
76 Correct 3 ms 9308 KB Output is correct
77 Correct 3 ms 9308 KB Output is correct
78 Correct 3 ms 9304 KB Output is correct
79 Correct 3 ms 9308 KB Output is correct
80 Correct 50 ms 14672 KB Output is correct
81 Correct 43 ms 14684 KB Output is correct
82 Correct 45 ms 14672 KB Output is correct
83 Correct 49 ms 15184 KB Output is correct
84 Correct 3 ms 9308 KB Output is correct
85 Correct 3 ms 9308 KB Output is correct
86 Correct 3 ms 9308 KB Output is correct
87 Correct 3 ms 9308 KB Output is correct
88 Correct 3 ms 9308 KB Output is correct
89 Correct 3 ms 9308 KB Output is correct
90 Correct 3 ms 9272 KB Output is correct
91 Correct 3 ms 9272 KB Output is correct
92 Correct 3 ms 9308 KB Output is correct
93 Correct 3 ms 9296 KB Output is correct
94 Correct 2 ms 9052 KB Output is correct
95 Correct 2 ms 9052 KB Output is correct
96 Correct 2 ms 9140 KB Output is correct
97 Correct 2 ms 9052 KB Output is correct
98 Correct 2 ms 9260 KB Output is correct
99 Correct 2 ms 9048 KB Output is correct
100 Correct 2 ms 9052 KB Output is correct
101 Correct 2 ms 9052 KB Output is correct
102 Correct 2 ms 9052 KB Output is correct
103 Correct 2 ms 9052 KB Output is correct
104 Correct 6 ms 10072 KB Output is correct
105 Correct 11 ms 11612 KB Output is correct
106 Correct 2 ms 9052 KB Output is correct
107 Correct 19 ms 13628 KB Output is correct
108 Correct 26 ms 16476 KB Output is correct
109 Correct 2 ms 9304 KB Output is correct
110 Correct 35 ms 16672 KB Output is correct
111 Correct 37 ms 18160 KB Output is correct
112 Correct 2 ms 9308 KB Output is correct
113 Correct 56 ms 26356 KB Output is correct
114 Incorrect 14 ms 11612 KB Output isn't correct
115 Halted 0 ms 0 KB -