답안 #996970

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
996970	2024-06-11T14:20:00 Z	Dan4Life	자매 도시 (APIO20_swap)	C++17	100 / 100	188 ms	77460 KB

swap

#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
 
#define all(a) begin(a),end(a)
#define sz(a) (int)a.size()
#define pb push_back
 
const int mxN = (int)4e5+10;
const int mxLg = 20;
int n, m, newN, deg[mxN];
int p[mxN], line[mxN], good[mxN]; 
vector<array<int,3>> edges;
int jmp[mxLg][mxN], dep[mxN];
vector<int> adj[mxN];

int findSet(int i){return p[i]==i?i:p[i]=findSet(p[i]);}
bool isSameSet(int i, int j) { return findSet(i)==findSet(j); }
 
void unionSet(int i, int j){
	deg[i]++, deg[j]++;
	
	int x = findSet(i), y = findSet(j);
	
	if(x==y) line[x] = 0;
	if(!line[x] or !line[y] or deg[i]>=3 or deg[j]>=3 or good[x] or good[y])
		line[x]=line[y]=0, good[newN]=1;
		
	adj[newN].pb(y),adj[y].pb(newN);
	if(x!=y) adj[newN].pb(x),adj[x].pb(newN);
	
	p[y] = p[x] = p[newN] = newN; newN++;
}
 
void dfs(int s, int p){
	if(p!=-1) dep[s] = dep[p]+1;
	else dep[s] = 0;
	jmp[0][s] = p;
	for(auto u : adj[s]) 
		if(u!=p) dfs(u,s);
}

void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) {
	n = N, m = M; newN = N;
	for(int i = 0; i < N+M; i++) 
		p[i]=i,deg[i]=0,line[i]=1;
	for(int i = 0; i < M; i++)
		edges.pb({W[i],U[i],V[i]});
	sort(all(edges),[&](array<int,3> a, array<int,3> b){
		return a[0]<b[0];
	});
	
	memset(jmp,-1,sizeof(jmp));
	
	for(int i = 0; i < M; i++)
		unionSet(edges[i][1],edges[i][2]);
		
	for(int i = newN-1; i>=0; i--) 
		if(!dep[i]) dfs(i,-1);
		
	for(int i = 1; i < mxLg; i++)
		for(int j = 0; j < newN; j++)
			if(jmp[i-1][j]!=-1) jmp[i][j] = jmp[i-1][jmp[i-1][j]];
}

int jump(int s, int x){
	for(int k = mxLg-1; k>=0 and s!=-1; k--)
		if((x>>k)&1) s = jmp[k][s];
	return s;
}

int lca(int a, int b){
	if(a==b) return a;
	if(jmp[0][a]==jmp[0][b]) return jmp[0][a];
	if(dep[a]>dep[b]) swap(a,b);
	if(dep[a]!=dep[b]) b = jump(b,dep[b]-dep[a]); 
	for(int i = mxLg-1; i>=0; i--)
		if(jmp[i][a]!=jmp[i][b] and jmp[i][a]!=-1) 
			a=jmp[i][a],b=jmp[i][b];
	if(jmp[0][a]!=jmp[0][b] or jmp[0][a]==-1) return -1;
	return jmp[0][a];
}

int findNearestAnc(int s){
	if(good[s]) return s;
	for(int i = mxLg-1; i>=0; i--)
		if(jmp[i][s]!=-1 and !good[jmp[i][s]])
			s = jmp[i][s];
	return jmp[0][s];
}

int getMinimumFuelCapacity(int X, int Y) {
	int Z = lca(X, Y);
	if(Z==-1) return -1;
	Z = findNearestAnc(Z);
	if(Z==-1 or !good[Z]) return -1;
	return edges[Z-n][0];
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	47704 KB	Output is correct
2	Correct	6 ms	47708 KB	Output is correct
3	Correct	6 ms	47708 KB	Output is correct
4	Correct	6 ms	47708 KB	Output is correct
5	Correct	7 ms	47708 KB	Output is correct
6	Correct	6 ms	47788 KB	Output is correct
7	Correct	7 ms	47704 KB	Output is correct
8	Correct	7 ms	47708 KB	Output is correct
9	Correct	51 ms	55696 KB	Output is correct
10	Correct	66 ms	57544 KB	Output is correct
11	Correct	73 ms	57392 KB	Output is correct
12	Correct	69 ms	57800 KB	Output is correct
13	Correct	58 ms	60100 KB	Output is correct
14	Correct	57 ms	55612 KB	Output is correct
15	Correct	127 ms	59380 KB	Output is correct
16	Correct	129 ms	59000 KB	Output is correct
17	Correct	152 ms	59696 KB	Output is correct
18	Correct	161 ms	61960 KB	Output is correct
19	Correct	63 ms	52752 KB	Output is correct
20	Correct	134 ms	60488 KB	Output is correct
21	Correct	132 ms	60404 KB	Output is correct
22	Correct	130 ms	60960 KB	Output is correct
23	Correct	180 ms	63472 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	47704 KB	Output is correct
2	Correct	6 ms	47708 KB	Output is correct
3	Correct	124 ms	64760 KB	Output is correct
4	Correct	129 ms	65436 KB	Output is correct
5	Correct	131 ms	65120 KB	Output is correct
6	Correct	127 ms	65320 KB	Output is correct
7	Correct	125 ms	65268 KB	Output is correct
8	Correct	129 ms	64632 KB	Output is correct
9	Correct	122 ms	65096 KB	Output is correct
10	Correct	123 ms	64492 KB	Output is correct

Subtask #3
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	47704 KB	Output is correct
2	Correct	6 ms	47708 KB	Output is correct
3	Correct	6 ms	47708 KB	Output is correct
4	Correct	6 ms	47708 KB	Output is correct
5	Correct	7 ms	47708 KB	Output is correct
6	Correct	6 ms	47788 KB	Output is correct
7	Correct	7 ms	47704 KB	Output is correct
8	Correct	7 ms	47708 KB	Output is correct
9	Correct	6 ms	47708 KB	Output is correct
10	Correct	7 ms	47708 KB	Output is correct
11	Correct	7 ms	47796 KB	Output is correct
12	Correct	6 ms	47708 KB	Output is correct
13	Correct	6 ms	47708 KB	Output is correct
14	Correct	7 ms	47916 KB	Output is correct
15	Correct	7 ms	47708 KB	Output is correct
16	Correct	6 ms	47724 KB	Output is correct
17	Correct	7 ms	47708 KB	Output is correct
18	Correct	7 ms	47708 KB	Output is correct
19	Correct	7 ms	47760 KB	Output is correct
20	Correct	7 ms	47708 KB	Output is correct
21	Correct	7 ms	47708 KB	Output is correct
22	Correct	6 ms	48016 KB	Output is correct
23	Correct	7 ms	47708 KB	Output is correct
24	Correct	7 ms	48008 KB	Output is correct
25	Correct	8 ms	47964 KB	Output is correct
26	Correct	7 ms	48008 KB	Output is correct
27	Correct	7 ms	47764 KB	Output is correct
28	Correct	7 ms	47964 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	47708 KB	Output is correct
2	Correct	6 ms	47704 KB	Output is correct
3	Correct	6 ms	47708 KB	Output is correct
4	Correct	6 ms	47708 KB	Output is correct
5	Correct	6 ms	47708 KB	Output is correct
6	Correct	7 ms	47708 KB	Output is correct
7	Correct	6 ms	47788 KB	Output is correct
8	Correct	7 ms	47704 KB	Output is correct
9	Correct	7 ms	47708 KB	Output is correct
10	Correct	51 ms	55696 KB	Output is correct
11	Correct	66 ms	57544 KB	Output is correct
12	Correct	73 ms	57392 KB	Output is correct
13	Correct	69 ms	57800 KB	Output is correct
14	Correct	58 ms	60100 KB	Output is correct
15	Correct	7 ms	47708 KB	Output is correct
16	Correct	7 ms	47796 KB	Output is correct
17	Correct	6 ms	47708 KB	Output is correct
18	Correct	6 ms	47708 KB	Output is correct
19	Correct	7 ms	47916 KB	Output is correct
20	Correct	7 ms	47708 KB	Output is correct
21	Correct	6 ms	47724 KB	Output is correct
22	Correct	7 ms	47708 KB	Output is correct
23	Correct	7 ms	47708 KB	Output is correct
24	Correct	7 ms	47760 KB	Output is correct
25	Correct	7 ms	47708 KB	Output is correct
26	Correct	7 ms	47708 KB	Output is correct
27	Correct	6 ms	48016 KB	Output is correct
28	Correct	7 ms	47708 KB	Output is correct
29	Correct	7 ms	48008 KB	Output is correct
30	Correct	8 ms	47964 KB	Output is correct
31	Correct	7 ms	48008 KB	Output is correct
32	Correct	7 ms	47764 KB	Output is correct
33	Correct	7 ms	47964 KB	Output is correct
34	Correct	15 ms	49436 KB	Output is correct
35	Correct	67 ms	59592 KB	Output is correct
36	Correct	63 ms	59592 KB	Output is correct
37	Correct	61 ms	59592 KB	Output is correct
38	Correct	64 ms	59592 KB	Output is correct
39	Correct	72 ms	59304 KB	Output is correct
40	Correct	56 ms	58416 KB	Output is correct
41	Correct	74 ms	59848 KB	Output is correct
42	Correct	63 ms	59596 KB	Output is correct
43	Correct	55 ms	62660 KB	Output is correct
44	Correct	74 ms	60100 KB	Output is correct
45	Correct	115 ms	67776 KB	Output is correct
46	Correct	66 ms	59772 KB	Output is correct
47	Correct	66 ms	59668 KB	Output is correct
48	Correct	71 ms	62404 KB	Output is correct
49	Correct	76 ms	68544 KB	Output is correct
50	Correct	61 ms	63728 KB	Output is correct
51	Correct	77 ms	65344 KB	Output is correct
52	Correct	99 ms	68536 KB	Output is correct
53	Correct	105 ms	69820 KB	Output is correct
54	Correct	134 ms	73408 KB	Output is correct
55	Correct	58 ms	62408 KB	Output is correct
56	Correct	133 ms	71656 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	47704 KB	Output is correct
2	Correct	6 ms	47708 KB	Output is correct
3	Correct	6 ms	47708 KB	Output is correct
4	Correct	6 ms	47708 KB	Output is correct
5	Correct	7 ms	47708 KB	Output is correct
6	Correct	6 ms	47788 KB	Output is correct
7	Correct	7 ms	47704 KB	Output is correct
8	Correct	7 ms	47708 KB	Output is correct
9	Correct	51 ms	55696 KB	Output is correct
10	Correct	66 ms	57544 KB	Output is correct
11	Correct	73 ms	57392 KB	Output is correct
12	Correct	69 ms	57800 KB	Output is correct
13	Correct	58 ms	60100 KB	Output is correct
14	Correct	57 ms	55612 KB	Output is correct
15	Correct	127 ms	59380 KB	Output is correct
16	Correct	129 ms	59000 KB	Output is correct
17	Correct	152 ms	59696 KB	Output is correct
18	Correct	161 ms	61960 KB	Output is correct
19	Correct	124 ms	64760 KB	Output is correct
20	Correct	129 ms	65436 KB	Output is correct
21	Correct	131 ms	65120 KB	Output is correct
22	Correct	127 ms	65320 KB	Output is correct
23	Correct	125 ms	65268 KB	Output is correct
24	Correct	129 ms	64632 KB	Output is correct
25	Correct	122 ms	65096 KB	Output is correct
26	Correct	123 ms	64492 KB	Output is correct
27	Correct	7 ms	47708 KB	Output is correct
28	Correct	7 ms	47796 KB	Output is correct
29	Correct	6 ms	47708 KB	Output is correct
30	Correct	6 ms	47708 KB	Output is correct
31	Correct	7 ms	47916 KB	Output is correct
32	Correct	7 ms	47708 KB	Output is correct
33	Correct	6 ms	47724 KB	Output is correct
34	Correct	7 ms	47708 KB	Output is correct
35	Correct	7 ms	47708 KB	Output is correct
36	Correct	15 ms	49436 KB	Output is correct
37	Correct	67 ms	59592 KB	Output is correct
38	Correct	63 ms	59592 KB	Output is correct
39	Correct	61 ms	59592 KB	Output is correct
40	Correct	64 ms	59592 KB	Output is correct
41	Correct	72 ms	59304 KB	Output is correct
42	Correct	56 ms	58416 KB	Output is correct
43	Correct	74 ms	59848 KB	Output is correct
44	Correct	63 ms	59596 KB	Output is correct
45	Correct	55 ms	62660 KB	Output is correct
46	Correct	74 ms	60100 KB	Output is correct
47	Correct	19 ms	49684 KB	Output is correct
48	Correct	127 ms	64564 KB	Output is correct
49	Correct	128 ms	64556 KB	Output is correct
50	Correct	140 ms	64524 KB	Output is correct
51	Correct	126 ms	64568 KB	Output is correct
52	Correct	121 ms	63756 KB	Output is correct
53	Correct	111 ms	61548 KB	Output is correct
54	Correct	127 ms	65332 KB	Output is correct
55	Correct	128 ms	64616 KB	Output is correct
56	Correct	143 ms	67068 KB	Output is correct
57	Correct	137 ms	65580 KB	Output is correct

Subtask #6
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	47708 KB	Output is correct
2	Correct	6 ms	47704 KB	Output is correct
3	Correct	6 ms	47708 KB	Output is correct
4	Correct	6 ms	47708 KB	Output is correct
5	Correct	6 ms	47708 KB	Output is correct
6	Correct	7 ms	47708 KB	Output is correct
7	Correct	6 ms	47788 KB	Output is correct
8	Correct	7 ms	47704 KB	Output is correct
9	Correct	7 ms	47708 KB	Output is correct
10	Correct	51 ms	55696 KB	Output is correct
11	Correct	66 ms	57544 KB	Output is correct
12	Correct	73 ms	57392 KB	Output is correct
13	Correct	69 ms	57800 KB	Output is correct
14	Correct	58 ms	60100 KB	Output is correct
15	Correct	57 ms	55612 KB	Output is correct
16	Correct	127 ms	59380 KB	Output is correct
17	Correct	129 ms	59000 KB	Output is correct
18	Correct	152 ms	59696 KB	Output is correct
19	Correct	161 ms	61960 KB	Output is correct
20	Correct	124 ms	64760 KB	Output is correct
21	Correct	129 ms	65436 KB	Output is correct
22	Correct	131 ms	65120 KB	Output is correct
23	Correct	127 ms	65320 KB	Output is correct
24	Correct	125 ms	65268 KB	Output is correct
25	Correct	129 ms	64632 KB	Output is correct
26	Correct	122 ms	65096 KB	Output is correct
27	Correct	123 ms	64492 KB	Output is correct
28	Correct	7 ms	47708 KB	Output is correct
29	Correct	7 ms	47796 KB	Output is correct
30	Correct	6 ms	47708 KB	Output is correct
31	Correct	6 ms	47708 KB	Output is correct
32	Correct	7 ms	47916 KB	Output is correct
33	Correct	7 ms	47708 KB	Output is correct
34	Correct	6 ms	47724 KB	Output is correct
35	Correct	7 ms	47708 KB	Output is correct
36	Correct	7 ms	47708 KB	Output is correct
37	Correct	15 ms	49436 KB	Output is correct
38	Correct	67 ms	59592 KB	Output is correct
39	Correct	63 ms	59592 KB	Output is correct
40	Correct	61 ms	59592 KB	Output is correct
41	Correct	64 ms	59592 KB	Output is correct
42	Correct	72 ms	59304 KB	Output is correct
43	Correct	56 ms	58416 KB	Output is correct
44	Correct	74 ms	59848 KB	Output is correct
45	Correct	63 ms	59596 KB	Output is correct
46	Correct	55 ms	62660 KB	Output is correct
47	Correct	74 ms	60100 KB	Output is correct
48	Correct	19 ms	49684 KB	Output is correct
49	Correct	127 ms	64564 KB	Output is correct
50	Correct	128 ms	64556 KB	Output is correct
51	Correct	140 ms	64524 KB	Output is correct
52	Correct	126 ms	64568 KB	Output is correct
53	Correct	121 ms	63756 KB	Output is correct
54	Correct	111 ms	61548 KB	Output is correct
55	Correct	127 ms	65332 KB	Output is correct
56	Correct	128 ms	64616 KB	Output is correct
57	Correct	143 ms	67068 KB	Output is correct
58	Correct	137 ms	65580 KB	Output is correct
59	Correct	63 ms	52752 KB	Output is correct
60	Correct	134 ms	60488 KB	Output is correct
61	Correct	132 ms	60404 KB	Output is correct
62	Correct	130 ms	60960 KB	Output is correct
63	Correct	180 ms	63472 KB	Output is correct
64	Correct	7 ms	47760 KB	Output is correct
65	Correct	7 ms	47708 KB	Output is correct
66	Correct	7 ms	47708 KB	Output is correct
67	Correct	6 ms	48016 KB	Output is correct
68	Correct	7 ms	47708 KB	Output is correct
69	Correct	7 ms	48008 KB	Output is correct
70	Correct	8 ms	47964 KB	Output is correct
71	Correct	7 ms	48008 KB	Output is correct
72	Correct	7 ms	47764 KB	Output is correct
73	Correct	7 ms	47964 KB	Output is correct
74	Correct	115 ms	67776 KB	Output is correct
75	Correct	66 ms	59772 KB	Output is correct
76	Correct	66 ms	59668 KB	Output is correct
77	Correct	71 ms	62404 KB	Output is correct
78	Correct	76 ms	68544 KB	Output is correct
79	Correct	61 ms	63728 KB	Output is correct
80	Correct	77 ms	65344 KB	Output is correct
81	Correct	99 ms	68536 KB	Output is correct
82	Correct	105 ms	69820 KB	Output is correct
83	Correct	134 ms	73408 KB	Output is correct
84	Correct	58 ms	62408 KB	Output is correct
85	Correct	133 ms	71656 KB	Output is correct
86	Correct	50 ms	55424 KB	Output is correct
87	Correct	137 ms	64608 KB	Output is correct
88	Correct	124 ms	64560 KB	Output is correct
89	Correct	163 ms	66664 KB	Output is correct
90	Correct	135 ms	74004 KB	Output is correct
91	Correct	137 ms	72704 KB	Output is correct
92	Correct	181 ms	69672 KB	Output is correct
93	Correct	166 ms	72828 KB	Output is correct
94	Correct	173 ms	74396 KB	Output is correct
95	Correct	188 ms	77460 KB	Output is correct
96	Correct	148 ms	67168 KB	Output is correct
97	Correct	164 ms	72320 KB	Output is correct

답안 #996970

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 7.0 / 7.0

Subtask #3 17.0 / 17.0

Subtask #4 20.0 / 20.0

Subtask #5 23.0 / 23.0

Subtask #6 27.0 / 27.0

Subtask #1
6.0 / 6.0

Subtask #2
7.0 / 7.0

Subtask #3
17.0 / 17.0

Subtask #4
20.0 / 20.0

Subtask #5
23.0 / 23.0

Subtask #6
27.0 / 27.0