#include<bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define pii pair<int,int>
#define ll long long
#define sz(x) (ll)x.size()
using namespace std;
const int mxn=3e5+5;
vector<int>g[mxn];
int pr[mxn]{0},cur,d[mxn]{0},dp[mxn]{0},dep[mxn]{0},up[mxn][20]{0};
bool cyc[mxn]{0},ok=0;
int get(int r){
return pr[r]==r?r:pr[r]=get(pr[r]);
}
void dfs(int u,int p,int l){
up[u][0]=p;dep[u]=l;
for(int i=1;i<20;i++)up[u][i]=up[up[u][i-1]][i-1];
for(auto v:g[u]){
if(v==p)continue;
if(!cyc[v])dp[v]=dp[u];
dfs(v,u,l+1);
}
}
int qr(int a,int b){
if(dep[a]>dep[b])swap(a,b);
for(int i=19;i>=0;i--)if(dep[b]-(1<<i)>=dep[a])b=up[b][i];
if(a==b)return dp[b];
for(int i=19;i>=0;i--)if(up[a][i]!=up[b][i])a=up[a][i],b=up[b][i];
return dp[up[a][0]];
}
void init(int N, int M,std::vector<int> U, std::vector<int> V, std::vector<int> W){
cur=N;iota(pr,pr+mxn,0);vector<pair<int,pii>>ed;
for(int i=0;i<M;i++){
ed.pb({W[i],{U[i],V[i]}});
}sort(ed.begin(),ed.end());
for(auto it : ed){
d[it.s.f]++;d[it.s.s]++;
if(get(it.s.f)==get(it.s.s)){
g[cur].pb(get(it.s.f));pr[get(it.s.f)]=cur;
dp[cur]=it.f;cyc[cur++]=1;
}else{
int u=get(it.s.f),v=get(it.s.s);
g[cur].pb(u);g[cur].pb(v);
pr[u]=pr[v]=cur;dp[cur]=it.f;
if(cyc[u]||cyc[v]||d[it.s.f]>=3||d[it.s.s]>=3)cyc[cur]=1;
cur++;
}
}cur--;dfs(cur,cur,0);if(cyc[cur])ok=1;
}
int getMinimumFuelCapacity(int X, int Y){
if(!ok)return -1;
else return qr(X,Y);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
15196 KB |
Output is correct |
2 |
Correct |
3 ms |
15272 KB |
Output is correct |
3 |
Correct |
3 ms |
15196 KB |
Output is correct |
4 |
Correct |
3 ms |
15196 KB |
Output is correct |
5 |
Correct |
3 ms |
15196 KB |
Output is correct |
6 |
Correct |
3 ms |
15192 KB |
Output is correct |
7 |
Correct |
4 ms |
15196 KB |
Output is correct |
8 |
Correct |
3 ms |
15196 KB |
Output is correct |
9 |
Correct |
72 ms |
32676 KB |
Output is correct |
10 |
Correct |
113 ms |
35784 KB |
Output is correct |
11 |
Correct |
89 ms |
35688 KB |
Output is correct |
12 |
Correct |
97 ms |
36072 KB |
Output is correct |
13 |
Correct |
79 ms |
39904 KB |
Output is correct |
14 |
Correct |
71 ms |
32720 KB |
Output is correct |
15 |
Correct |
132 ms |
37508 KB |
Output is correct |
16 |
Correct |
128 ms |
37224 KB |
Output is correct |
17 |
Correct |
146 ms |
37732 KB |
Output is correct |
18 |
Correct |
120 ms |
41400 KB |
Output is correct |
19 |
Correct |
68 ms |
21592 KB |
Output is correct |
20 |
Correct |
202 ms |
37576 KB |
Output is correct |
21 |
Correct |
161 ms |
37684 KB |
Output is correct |
22 |
Correct |
187 ms |
37944 KB |
Output is correct |
23 |
Correct |
197 ms |
41872 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
15196 KB |
Output is correct |
2 |
Correct |
3 ms |
15272 KB |
Output is correct |
3 |
Correct |
177 ms |
45068 KB |
Output is correct |
4 |
Correct |
177 ms |
45716 KB |
Output is correct |
5 |
Correct |
175 ms |
49448 KB |
Output is correct |
6 |
Correct |
164 ms |
49348 KB |
Output is correct |
7 |
Correct |
177 ms |
49600 KB |
Output is correct |
8 |
Correct |
186 ms |
48984 KB |
Output is correct |
9 |
Correct |
188 ms |
49388 KB |
Output is correct |
10 |
Correct |
182 ms |
48864 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
15196 KB |
Output is correct |
2 |
Correct |
3 ms |
15272 KB |
Output is correct |
3 |
Correct |
3 ms |
15196 KB |
Output is correct |
4 |
Correct |
3 ms |
15196 KB |
Output is correct |
5 |
Correct |
3 ms |
15196 KB |
Output is correct |
6 |
Correct |
3 ms |
15192 KB |
Output is correct |
7 |
Correct |
4 ms |
15196 KB |
Output is correct |
8 |
Correct |
3 ms |
15196 KB |
Output is correct |
9 |
Correct |
3 ms |
15196 KB |
Output is correct |
10 |
Correct |
4 ms |
15196 KB |
Output is correct |
11 |
Correct |
4 ms |
15196 KB |
Output is correct |
12 |
Correct |
3 ms |
15196 KB |
Output is correct |
13 |
Correct |
4 ms |
15196 KB |
Output is correct |
14 |
Correct |
3 ms |
15196 KB |
Output is correct |
15 |
Correct |
4 ms |
15196 KB |
Output is correct |
16 |
Correct |
3 ms |
15192 KB |
Output is correct |
17 |
Correct |
4 ms |
15196 KB |
Output is correct |
18 |
Correct |
4 ms |
15296 KB |
Output is correct |
19 |
Correct |
3 ms |
15196 KB |
Output is correct |
20 |
Correct |
3 ms |
15196 KB |
Output is correct |
21 |
Correct |
3 ms |
15196 KB |
Output is correct |
22 |
Correct |
5 ms |
15524 KB |
Output is correct |
23 |
Correct |
3 ms |
15196 KB |
Output is correct |
24 |
Correct |
4 ms |
15260 KB |
Output is correct |
25 |
Correct |
4 ms |
15452 KB |
Output is correct |
26 |
Correct |
4 ms |
15452 KB |
Output is correct |
27 |
Correct |
4 ms |
15196 KB |
Output is correct |
28 |
Correct |
4 ms |
15452 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
15196 KB |
Output is correct |
2 |
Correct |
3 ms |
15196 KB |
Output is correct |
3 |
Correct |
3 ms |
15272 KB |
Output is correct |
4 |
Correct |
3 ms |
15196 KB |
Output is correct |
5 |
Correct |
3 ms |
15196 KB |
Output is correct |
6 |
Correct |
3 ms |
15196 KB |
Output is correct |
7 |
Correct |
3 ms |
15192 KB |
Output is correct |
8 |
Correct |
4 ms |
15196 KB |
Output is correct |
9 |
Correct |
3 ms |
15196 KB |
Output is correct |
10 |
Correct |
72 ms |
32676 KB |
Output is correct |
11 |
Correct |
113 ms |
35784 KB |
Output is correct |
12 |
Correct |
89 ms |
35688 KB |
Output is correct |
13 |
Correct |
97 ms |
36072 KB |
Output is correct |
14 |
Correct |
79 ms |
39904 KB |
Output is correct |
15 |
Correct |
4 ms |
15196 KB |
Output is correct |
16 |
Correct |
4 ms |
15196 KB |
Output is correct |
17 |
Correct |
3 ms |
15196 KB |
Output is correct |
18 |
Correct |
4 ms |
15196 KB |
Output is correct |
19 |
Correct |
3 ms |
15196 KB |
Output is correct |
20 |
Correct |
4 ms |
15196 KB |
Output is correct |
21 |
Correct |
3 ms |
15192 KB |
Output is correct |
22 |
Correct |
4 ms |
15196 KB |
Output is correct |
23 |
Correct |
4 ms |
15296 KB |
Output is correct |
24 |
Correct |
3 ms |
15196 KB |
Output is correct |
25 |
Correct |
3 ms |
15196 KB |
Output is correct |
26 |
Correct |
3 ms |
15196 KB |
Output is correct |
27 |
Correct |
5 ms |
15524 KB |
Output is correct |
28 |
Correct |
3 ms |
15196 KB |
Output is correct |
29 |
Correct |
4 ms |
15260 KB |
Output is correct |
30 |
Correct |
4 ms |
15452 KB |
Output is correct |
31 |
Correct |
4 ms |
15452 KB |
Output is correct |
32 |
Correct |
4 ms |
15196 KB |
Output is correct |
33 |
Correct |
4 ms |
15452 KB |
Output is correct |
34 |
Correct |
14 ms |
18456 KB |
Output is correct |
35 |
Correct |
103 ms |
38012 KB |
Output is correct |
36 |
Correct |
97 ms |
37836 KB |
Output is correct |
37 |
Correct |
95 ms |
38096 KB |
Output is correct |
38 |
Correct |
92 ms |
37828 KB |
Output is correct |
39 |
Correct |
101 ms |
38724 KB |
Output is correct |
40 |
Correct |
106 ms |
35272 KB |
Output is correct |
41 |
Correct |
98 ms |
38088 KB |
Output is correct |
42 |
Correct |
92 ms |
37876 KB |
Output is correct |
43 |
Correct |
79 ms |
43204 KB |
Output is correct |
44 |
Correct |
102 ms |
38560 KB |
Output is correct |
45 |
Correct |
117 ms |
53032 KB |
Output is correct |
46 |
Correct |
92 ms |
37828 KB |
Output is correct |
47 |
Correct |
98 ms |
38164 KB |
Output is correct |
48 |
Correct |
123 ms |
41988 KB |
Output is correct |
49 |
Correct |
87 ms |
54440 KB |
Output is correct |
50 |
Correct |
70 ms |
42952 KB |
Output is correct |
51 |
Correct |
102 ms |
47428 KB |
Output is correct |
52 |
Correct |
140 ms |
54484 KB |
Output is correct |
53 |
Correct |
161 ms |
56512 KB |
Output is correct |
54 |
Correct |
163 ms |
60604 KB |
Output is correct |
55 |
Correct |
82 ms |
42780 KB |
Output is correct |
56 |
Correct |
140 ms |
59328 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
15196 KB |
Output is correct |
2 |
Correct |
3 ms |
15272 KB |
Output is correct |
3 |
Correct |
3 ms |
15196 KB |
Output is correct |
4 |
Correct |
3 ms |
15196 KB |
Output is correct |
5 |
Correct |
3 ms |
15196 KB |
Output is correct |
6 |
Correct |
3 ms |
15192 KB |
Output is correct |
7 |
Correct |
4 ms |
15196 KB |
Output is correct |
8 |
Correct |
3 ms |
15196 KB |
Output is correct |
9 |
Correct |
72 ms |
32676 KB |
Output is correct |
10 |
Correct |
113 ms |
35784 KB |
Output is correct |
11 |
Correct |
89 ms |
35688 KB |
Output is correct |
12 |
Correct |
97 ms |
36072 KB |
Output is correct |
13 |
Correct |
79 ms |
39904 KB |
Output is correct |
14 |
Correct |
71 ms |
32720 KB |
Output is correct |
15 |
Correct |
132 ms |
37508 KB |
Output is correct |
16 |
Correct |
128 ms |
37224 KB |
Output is correct |
17 |
Correct |
146 ms |
37732 KB |
Output is correct |
18 |
Correct |
120 ms |
41400 KB |
Output is correct |
19 |
Correct |
177 ms |
45068 KB |
Output is correct |
20 |
Correct |
177 ms |
45716 KB |
Output is correct |
21 |
Correct |
175 ms |
49448 KB |
Output is correct |
22 |
Correct |
164 ms |
49348 KB |
Output is correct |
23 |
Correct |
177 ms |
49600 KB |
Output is correct |
24 |
Correct |
186 ms |
48984 KB |
Output is correct |
25 |
Correct |
188 ms |
49388 KB |
Output is correct |
26 |
Correct |
182 ms |
48864 KB |
Output is correct |
27 |
Correct |
4 ms |
15196 KB |
Output is correct |
28 |
Correct |
4 ms |
15196 KB |
Output is correct |
29 |
Correct |
3 ms |
15196 KB |
Output is correct |
30 |
Correct |
4 ms |
15196 KB |
Output is correct |
31 |
Correct |
3 ms |
15196 KB |
Output is correct |
32 |
Correct |
4 ms |
15196 KB |
Output is correct |
33 |
Correct |
3 ms |
15192 KB |
Output is correct |
34 |
Correct |
4 ms |
15196 KB |
Output is correct |
35 |
Correct |
4 ms |
15296 KB |
Output is correct |
36 |
Correct |
14 ms |
18456 KB |
Output is correct |
37 |
Correct |
103 ms |
38012 KB |
Output is correct |
38 |
Correct |
97 ms |
37836 KB |
Output is correct |
39 |
Correct |
95 ms |
38096 KB |
Output is correct |
40 |
Correct |
92 ms |
37828 KB |
Output is correct |
41 |
Correct |
101 ms |
38724 KB |
Output is correct |
42 |
Correct |
106 ms |
35272 KB |
Output is correct |
43 |
Correct |
98 ms |
38088 KB |
Output is correct |
44 |
Correct |
92 ms |
37876 KB |
Output is correct |
45 |
Correct |
79 ms |
43204 KB |
Output is correct |
46 |
Correct |
102 ms |
38560 KB |
Output is correct |
47 |
Correct |
18 ms |
16772 KB |
Output is correct |
48 |
Correct |
176 ms |
41668 KB |
Output is correct |
49 |
Correct |
183 ms |
41876 KB |
Output is correct |
50 |
Correct |
169 ms |
41900 KB |
Output is correct |
51 |
Correct |
184 ms |
41924 KB |
Output is correct |
52 |
Correct |
162 ms |
41408 KB |
Output is correct |
53 |
Correct |
147 ms |
36496 KB |
Output is correct |
54 |
Correct |
210 ms |
42572 KB |
Output is correct |
55 |
Correct |
205 ms |
41672 KB |
Output is correct |
56 |
Correct |
199 ms |
46020 KB |
Output is correct |
57 |
Correct |
184 ms |
42668 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
15196 KB |
Output is correct |
2 |
Correct |
3 ms |
15196 KB |
Output is correct |
3 |
Correct |
3 ms |
15272 KB |
Output is correct |
4 |
Correct |
3 ms |
15196 KB |
Output is correct |
5 |
Correct |
3 ms |
15196 KB |
Output is correct |
6 |
Correct |
3 ms |
15196 KB |
Output is correct |
7 |
Correct |
3 ms |
15192 KB |
Output is correct |
8 |
Correct |
4 ms |
15196 KB |
Output is correct |
9 |
Correct |
3 ms |
15196 KB |
Output is correct |
10 |
Correct |
72 ms |
32676 KB |
Output is correct |
11 |
Correct |
113 ms |
35784 KB |
Output is correct |
12 |
Correct |
89 ms |
35688 KB |
Output is correct |
13 |
Correct |
97 ms |
36072 KB |
Output is correct |
14 |
Correct |
79 ms |
39904 KB |
Output is correct |
15 |
Correct |
71 ms |
32720 KB |
Output is correct |
16 |
Correct |
132 ms |
37508 KB |
Output is correct |
17 |
Correct |
128 ms |
37224 KB |
Output is correct |
18 |
Correct |
146 ms |
37732 KB |
Output is correct |
19 |
Correct |
120 ms |
41400 KB |
Output is correct |
20 |
Correct |
177 ms |
45068 KB |
Output is correct |
21 |
Correct |
177 ms |
45716 KB |
Output is correct |
22 |
Correct |
175 ms |
49448 KB |
Output is correct |
23 |
Correct |
164 ms |
49348 KB |
Output is correct |
24 |
Correct |
177 ms |
49600 KB |
Output is correct |
25 |
Correct |
186 ms |
48984 KB |
Output is correct |
26 |
Correct |
188 ms |
49388 KB |
Output is correct |
27 |
Correct |
182 ms |
48864 KB |
Output is correct |
28 |
Correct |
4 ms |
15196 KB |
Output is correct |
29 |
Correct |
4 ms |
15196 KB |
Output is correct |
30 |
Correct |
3 ms |
15196 KB |
Output is correct |
31 |
Correct |
4 ms |
15196 KB |
Output is correct |
32 |
Correct |
3 ms |
15196 KB |
Output is correct |
33 |
Correct |
4 ms |
15196 KB |
Output is correct |
34 |
Correct |
3 ms |
15192 KB |
Output is correct |
35 |
Correct |
4 ms |
15196 KB |
Output is correct |
36 |
Correct |
4 ms |
15296 KB |
Output is correct |
37 |
Correct |
14 ms |
18456 KB |
Output is correct |
38 |
Correct |
103 ms |
38012 KB |
Output is correct |
39 |
Correct |
97 ms |
37836 KB |
Output is correct |
40 |
Correct |
95 ms |
38096 KB |
Output is correct |
41 |
Correct |
92 ms |
37828 KB |
Output is correct |
42 |
Correct |
101 ms |
38724 KB |
Output is correct |
43 |
Correct |
106 ms |
35272 KB |
Output is correct |
44 |
Correct |
98 ms |
38088 KB |
Output is correct |
45 |
Correct |
92 ms |
37876 KB |
Output is correct |
46 |
Correct |
79 ms |
43204 KB |
Output is correct |
47 |
Correct |
102 ms |
38560 KB |
Output is correct |
48 |
Correct |
18 ms |
16772 KB |
Output is correct |
49 |
Correct |
176 ms |
41668 KB |
Output is correct |
50 |
Correct |
183 ms |
41876 KB |
Output is correct |
51 |
Correct |
169 ms |
41900 KB |
Output is correct |
52 |
Correct |
184 ms |
41924 KB |
Output is correct |
53 |
Correct |
162 ms |
41408 KB |
Output is correct |
54 |
Correct |
147 ms |
36496 KB |
Output is correct |
55 |
Correct |
210 ms |
42572 KB |
Output is correct |
56 |
Correct |
205 ms |
41672 KB |
Output is correct |
57 |
Correct |
199 ms |
46020 KB |
Output is correct |
58 |
Correct |
184 ms |
42668 KB |
Output is correct |
59 |
Correct |
68 ms |
21592 KB |
Output is correct |
60 |
Correct |
202 ms |
37576 KB |
Output is correct |
61 |
Correct |
161 ms |
37684 KB |
Output is correct |
62 |
Correct |
187 ms |
37944 KB |
Output is correct |
63 |
Correct |
197 ms |
41872 KB |
Output is correct |
64 |
Correct |
3 ms |
15196 KB |
Output is correct |
65 |
Correct |
3 ms |
15196 KB |
Output is correct |
66 |
Correct |
3 ms |
15196 KB |
Output is correct |
67 |
Correct |
5 ms |
15524 KB |
Output is correct |
68 |
Correct |
3 ms |
15196 KB |
Output is correct |
69 |
Correct |
4 ms |
15260 KB |
Output is correct |
70 |
Correct |
4 ms |
15452 KB |
Output is correct |
71 |
Correct |
4 ms |
15452 KB |
Output is correct |
72 |
Correct |
4 ms |
15196 KB |
Output is correct |
73 |
Correct |
4 ms |
15452 KB |
Output is correct |
74 |
Correct |
117 ms |
53032 KB |
Output is correct |
75 |
Correct |
92 ms |
37828 KB |
Output is correct |
76 |
Correct |
98 ms |
38164 KB |
Output is correct |
77 |
Correct |
123 ms |
41988 KB |
Output is correct |
78 |
Correct |
87 ms |
54440 KB |
Output is correct |
79 |
Correct |
70 ms |
42952 KB |
Output is correct |
80 |
Correct |
102 ms |
47428 KB |
Output is correct |
81 |
Correct |
140 ms |
54484 KB |
Output is correct |
82 |
Correct |
161 ms |
56512 KB |
Output is correct |
83 |
Correct |
163 ms |
60604 KB |
Output is correct |
84 |
Correct |
82 ms |
42780 KB |
Output is correct |
85 |
Correct |
140 ms |
59328 KB |
Output is correct |
86 |
Correct |
59 ms |
28812 KB |
Output is correct |
87 |
Correct |
177 ms |
41924 KB |
Output is correct |
88 |
Correct |
198 ms |
41924 KB |
Output is correct |
89 |
Correct |
200 ms |
45648 KB |
Output is correct |
90 |
Correct |
166 ms |
58564 KB |
Output is correct |
91 |
Correct |
178 ms |
55504 KB |
Output is correct |
92 |
Correct |
190 ms |
50376 KB |
Output is correct |
93 |
Correct |
220 ms |
57148 KB |
Output is correct |
94 |
Correct |
276 ms |
60080 KB |
Output is correct |
95 |
Correct |
265 ms |
65476 KB |
Output is correct |
96 |
Correct |
190 ms |
46480 KB |
Output is correct |
97 |
Correct |
254 ms |
54204 KB |
Output is correct |