#include <stdio.h>
#include <vector>
#include <queue>
#include <algorithm>
using namespace std;
int N,M,K;
vector<int> edge[100002];
int dfs(int x){
int i,v,sum;
priority_queue<int> q;
for(i=0; i<edge[x].size(); i++){
v = edge[x][i];
q.push(dfs(v));
}
i = K;
sum = 1;
while(i > 0 && !q.empty()){
sum += q.top();
q.pop();
i--;
}
return sum;
}
bool checking(){
if(dfs(1) >= M) return true;
return false;
}
int main(){
int i,ans;
int l,mid,r;
//freopen("input.txt","r",stdin);
scanf("%d %d",&N,&M);
for(i=1; i<N; i++){
scanf("%d",&ans);
edge[ans].push_back(i+1);
}
l = 0; r = N-1;
while(l <= r){
mid = (l+r)/2;
K = mid;
if(checking()){
ans = mid;
r = mid-1;
}else l = mid+1;
}
printf("%d",ans);
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
3552 KB |
Output is correct |
2 |
Correct |
0 ms |
3552 KB |
Output is correct |
3 |
Correct |
0 ms |
3552 KB |
Output is correct |
4 |
Correct |
0 ms |
3552 KB |
Output is correct |
5 |
Correct |
0 ms |
3552 KB |
Output is correct |
6 |
Correct |
0 ms |
3552 KB |
Output is correct |
7 |
Correct |
0 ms |
3552 KB |
Output is correct |
8 |
Correct |
0 ms |
3552 KB |
Output is correct |
9 |
Correct |
2 ms |
3552 KB |
Output is correct |
10 |
Correct |
0 ms |
3552 KB |
Output is correct |
11 |
Correct |
0 ms |
3552 KB |
Output is correct |
12 |
Correct |
0 ms |
3552 KB |
Output is correct |
13 |
Correct |
0 ms |
3552 KB |
Output is correct |
14 |
Correct |
2 ms |
3552 KB |
Output is correct |
15 |
Correct |
0 ms |
3552 KB |
Output is correct |
16 |
Correct |
0 ms |
3552 KB |
Output is correct |
17 |
Correct |
0 ms |
3552 KB |
Output is correct |
18 |
Correct |
0 ms |
3552 KB |
Output is correct |
19 |
Correct |
0 ms |
3552 KB |
Output is correct |
20 |
Correct |
0 ms |
3552 KB |
Output is correct |
21 |
Correct |
0 ms |
3552 KB |
Output is correct |
22 |
Correct |
0 ms |
3552 KB |
Output is correct |
23 |
Correct |
0 ms |
3552 KB |
Output is correct |
24 |
Correct |
0 ms |
3552 KB |
Output is correct |
25 |
Correct |
0 ms |
3552 KB |
Output is correct |
26 |
Correct |
0 ms |
3552 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
3552 KB |
Output is correct |
2 |
Correct |
0 ms |
3552 KB |
Output is correct |
3 |
Correct |
3 ms |
3552 KB |
Output is correct |
4 |
Correct |
2 ms |
3552 KB |
Output is correct |
5 |
Correct |
0 ms |
3552 KB |
Output is correct |
6 |
Correct |
0 ms |
3552 KB |
Output is correct |
7 |
Correct |
0 ms |
3552 KB |
Output is correct |
8 |
Correct |
2 ms |
3552 KB |
Output is correct |
9 |
Correct |
2 ms |
3552 KB |
Output is correct |
10 |
Correct |
0 ms |
3552 KB |
Output is correct |
11 |
Correct |
2 ms |
3552 KB |
Output is correct |
12 |
Correct |
0 ms |
3552 KB |
Output is correct |
13 |
Correct |
0 ms |
3552 KB |
Output is correct |
14 |
Correct |
0 ms |
3552 KB |
Output is correct |
15 |
Correct |
0 ms |
3552 KB |
Output is correct |
16 |
Correct |
2 ms |
3552 KB |
Output is correct |
17 |
Correct |
3 ms |
3552 KB |
Output is correct |
18 |
Correct |
0 ms |
3552 KB |
Output is correct |
19 |
Correct |
2 ms |
3552 KB |
Output is correct |
20 |
Correct |
0 ms |
3552 KB |
Output is correct |
21 |
Correct |
0 ms |
3552 KB |
Output is correct |
22 |
Correct |
2 ms |
3552 KB |
Output is correct |
23 |
Correct |
0 ms |
3552 KB |
Output is correct |
24 |
Correct |
0 ms |
3552 KB |
Output is correct |
25 |
Correct |
2 ms |
3552 KB |
Output is correct |
26 |
Correct |
0 ms |
3552 KB |
Output is correct |
27 |
Correct |
0 ms |
3552 KB |
Output is correct |
28 |
Correct |
0 ms |
3552 KB |
Output is correct |
29 |
Correct |
0 ms |
3552 KB |
Output is correct |
30 |
Correct |
0 ms |
3552 KB |
Output is correct |
31 |
Correct |
0 ms |
3552 KB |
Output is correct |
32 |
Correct |
2 ms |
3552 KB |
Output is correct |
33 |
Correct |
0 ms |
3552 KB |
Output is correct |
34 |
Correct |
0 ms |
3552 KB |
Output is correct |
35 |
Correct |
0 ms |
3552 KB |
Output is correct |
36 |
Correct |
0 ms |
3552 KB |
Output is correct |
37 |
Correct |
0 ms |
3552 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
3552 KB |
Output is correct |
2 |
Correct |
354 ms |
5532 KB |
Output is correct |
3 |
Correct |
160 ms |
5004 KB |
Output is correct |
4 |
Correct |
155 ms |
5004 KB |
Output is correct |
5 |
Correct |
356 ms |
5532 KB |
Output is correct |
6 |
Correct |
305 ms |
5268 KB |
Output is correct |
7 |
Correct |
275 ms |
5268 KB |
Output is correct |
8 |
Correct |
270 ms |
5136 KB |
Output is correct |
9 |
Correct |
290 ms |
5268 KB |
Output is correct |
10 |
Correct |
233 ms |
5004 KB |
Output is correct |
11 |
Correct |
267 ms |
5136 KB |
Output is correct |
12 |
Correct |
349 ms |
5400 KB |
Output is correct |
13 |
Correct |
330 ms |
5400 KB |
Output is correct |
14 |
Correct |
159 ms |
4740 KB |
Output is correct |
15 |
Correct |
298 ms |
5400 KB |
Output is correct |
16 |
Correct |
170 ms |
4740 KB |
Output is correct |
17 |
Correct |
249 ms |
5136 KB |
Output is correct |
18 |
Correct |
100 ms |
4476 KB |
Output is correct |
19 |
Correct |
54 ms |
4080 KB |
Output is correct |
20 |
Correct |
121 ms |
4740 KB |
Output is correct |
21 |
Correct |
89 ms |
4476 KB |
Output is correct |
22 |
Correct |
32 ms |
3948 KB |
Output is correct |
23 |
Correct |
124 ms |
4740 KB |
Output is correct |
24 |
Correct |
133 ms |
4872 KB |
Output is correct |
25 |
Correct |
0 ms |
3552 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
3552 KB |
Output is correct |
2 |
Correct |
164 ms |
4384 KB |
Output is correct |
3 |
Correct |
200 ms |
5092 KB |
Output is correct |
4 |
Correct |
223 ms |
5136 KB |
Output is correct |
5 |
Correct |
170 ms |
6456 KB |
Output is correct |
6 |
Correct |
150 ms |
5004 KB |
Output is correct |
7 |
Correct |
170 ms |
14276 KB |
Output is correct |
8 |
Correct |
323 ms |
5268 KB |
Output is correct |
9 |
Correct |
340 ms |
5268 KB |
Output is correct |
10 |
Correct |
244 ms |
4872 KB |
Output is correct |
11 |
Correct |
72 ms |
4080 KB |
Output is correct |
12 |
Correct |
289 ms |
5004 KB |
Output is correct |
13 |
Correct |
170 ms |
4608 KB |
Output is correct |
14 |
Correct |
288 ms |
5004 KB |
Output is correct |
15 |
Correct |
332 ms |
5268 KB |
Output is correct |
16 |
Correct |
120 ms |
4344 KB |
Output is correct |
17 |
Correct |
107 ms |
4344 KB |
Output is correct |
18 |
Correct |
216 ms |
4872 KB |
Output is correct |
19 |
Correct |
245 ms |
4872 KB |
Output is correct |
20 |
Correct |
88 ms |
4212 KB |
Output is correct |
21 |
Correct |
43 ms |
3948 KB |
Output is correct |
22 |
Correct |
61 ms |
8176 KB |
Output is correct |
23 |
Correct |
93 ms |
10040 KB |
Output is correct |
24 |
Correct |
84 ms |
9936 KB |
Output is correct |
25 |
Correct |
74 ms |
5004 KB |
Output is correct |
26 |
Correct |
145 ms |
6060 KB |
Output is correct |
27 |
Correct |
145 ms |
5004 KB |
Output is correct |
28 |
Correct |
96 ms |
4476 KB |
Output is correct |
29 |
Correct |
119 ms |
4872 KB |
Output is correct |
30 |
Correct |
158 ms |
4740 KB |
Output is correct |
31 |
Correct |
158 ms |
4740 KB |
Output is correct |
32 |
Correct |
44 ms |
3948 KB |
Output is correct |
33 |
Correct |
68 ms |
4324 KB |
Output is correct |
34 |
Correct |
61 ms |
3896 KB |
Output is correct |
35 |
Correct |
9 ms |
3552 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
3552 KB |
Output is correct |
2 |
Correct |
66 ms |
4392 KB |
Output is correct |
3 |
Correct |
159 ms |
5092 KB |
Output is correct |
4 |
Correct |
209 ms |
5136 KB |
Output is correct |
5 |
Correct |
171 ms |
6456 KB |
Output is correct |
6 |
Correct |
154 ms |
5004 KB |
Output is correct |
7 |
Correct |
169 ms |
14272 KB |
Output is correct |
8 |
Correct |
326 ms |
5268 KB |
Output is correct |
9 |
Correct |
174 ms |
4648 KB |
Output is correct |
10 |
Correct |
186 ms |
5092 KB |
Output is correct |
11 |
Correct |
217 ms |
5136 KB |
Output is correct |
12 |
Correct |
173 ms |
6456 KB |
Output is correct |
13 |
Correct |
151 ms |
5004 KB |
Output is correct |
14 |
Correct |
157 ms |
14272 KB |
Output is correct |
15 |
Correct |
331 ms |
5268 KB |
Output is correct |
16 |
Correct |
343 ms |
5268 KB |
Output is correct |
17 |
Correct |
351 ms |
5268 KB |
Output is correct |
18 |
Correct |
330 ms |
5136 KB |
Output is correct |
19 |
Correct |
234 ms |
4872 KB |
Output is correct |
20 |
Correct |
206 ms |
4740 KB |
Output is correct |
21 |
Correct |
222 ms |
4872 KB |
Output is correct |
22 |
Correct |
43 ms |
3948 KB |
Output is correct |
23 |
Correct |
205 ms |
4740 KB |
Output is correct |
24 |
Correct |
68 ms |
4080 KB |
Output is correct |
25 |
Correct |
94 ms |
4344 KB |
Output is correct |
26 |
Correct |
121 ms |
4344 KB |
Output is correct |
27 |
Correct |
295 ms |
5004 KB |
Output is correct |
28 |
Correct |
318 ms |
5136 KB |
Output is correct |
29 |
Correct |
307 ms |
5136 KB |
Output is correct |
30 |
Correct |
21 ms |
3684 KB |
Output is correct |
31 |
Correct |
44 ms |
3816 KB |
Output is correct |
32 |
Correct |
326 ms |
5136 KB |
Output is correct |
33 |
Correct |
296 ms |
5004 KB |
Output is correct |
34 |
Correct |
46 ms |
3948 KB |
Output is correct |
35 |
Correct |
318 ms |
5136 KB |
Output is correct |
36 |
Correct |
324 ms |
5268 KB |
Output is correct |
37 |
Correct |
247 ms |
4872 KB |
Output is correct |
38 |
Correct |
198 ms |
4740 KB |
Output is correct |
39 |
Correct |
311 ms |
5136 KB |
Output is correct |
40 |
Correct |
18 ms |
3684 KB |
Output is correct |
41 |
Correct |
95 ms |
4212 KB |
Output is correct |
42 |
Correct |
135 ms |
12428 KB |
Output is correct |
43 |
Correct |
59 ms |
7708 KB |
Output is correct |
44 |
Correct |
95 ms |
10192 KB |
Output is correct |
45 |
Correct |
136 ms |
6060 KB |
Output is correct |
46 |
Correct |
29 ms |
4212 KB |
Output is correct |
47 |
Correct |
101 ms |
10616 KB |
Output is correct |
48 |
Correct |
127 ms |
12712 KB |
Output is correct |
49 |
Correct |
153 ms |
13888 KB |
Output is correct |
50 |
Correct |
158 ms |
6192 KB |
Output is correct |
51 |
Correct |
77 ms |
5004 KB |
Output is correct |
52 |
Correct |
112 ms |
4608 KB |
Output is correct |
53 |
Correct |
119 ms |
4740 KB |
Output is correct |
54 |
Correct |
70 ms |
4212 KB |
Output is correct |
55 |
Correct |
151 ms |
4740 KB |
Output is correct |
56 |
Correct |
108 ms |
4344 KB |
Output is correct |
57 |
Correct |
246 ms |
5136 KB |
Output is correct |
58 |
Correct |
64 ms |
4212 KB |
Output is correct |
59 |
Correct |
81 ms |
4344 KB |
Output is correct |
60 |
Correct |
129 ms |
4872 KB |
Output is correct |
61 |
Correct |
62 ms |
4080 KB |
Output is correct |
62 |
Correct |
113 ms |
4476 KB |
Output is correct |
63 |
Correct |
92 ms |
4476 KB |
Output is correct |
64 |
Correct |
113 ms |
5092 KB |
Output is correct |
65 |
Correct |
174 ms |
5092 KB |
Output is correct |
66 |
Correct |
43 ms |
4144 KB |
Output is correct |
67 |
Correct |
36 ms |
4156 KB |
Output is correct |
68 |
Correct |
90 ms |
4320 KB |
Output is correct |
69 |
Correct |
52 ms |
3872 KB |
Output is correct |
70 |
Correct |
134 ms |
4544 KB |
Output is correct |
71 |
Correct |
64 ms |
4008 KB |
Output is correct |
72 |
Correct |
0 ms |
3552 KB |
Output is correct |