//start of jonathanirvings' template v2.0.0 (BETA)
#define jonathan using
#define ganteng namespace
#define banget std
#include <stdio.h>
#include <iostream>
#include <algorithm>
#include <deque>
#include <string>
#include <string.h>
#include <vector>
#include <stack>
#include <queue>
#include <math.h>
#include <stdlib.h>
#include <map>
#include <set>
#include <time.h>
#include <bitset>
#include <list>
jonathan ganteng banget;
typedef long long LL;
typedef pair<int,int> pii;
typedef pair<pii,pii> ppi;
typedef pair<LL,LL> pll;
typedef pair<string,string> pss;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pii> vii;
typedef vector<LL> vl;
typedef vector<vl> vvl;
typedef vector<string> vstr;
typedef vector<char> vc;
double EPS = 1e-9;
int INF = 2000000000;
long long INFF = 8000000000000000000LL;
double PI = acos(-1);
int dirx[8] = {-1,0,0,1,-1,-1,1,1};
int diry[8] = {0,1,-1,0,-1,1,-1,1};
#ifdef TESTING
#define DEBUG fprintf(stderr,"====TESTING====\n")
#define VALUE(x) cerr << "The value of " << #x << " is " << x << endl
#define debug(...) fprintf(stderr, __VA_ARGS__)
#else
#define DEBUG
#define VALUE(x)
#define debug(...)
#endif
#define FOR(a,b,c) for (int (a)=(b);(a)<(c);++(a))
#define FORN(a,b,c) for (int (a)=(b);(a)<=(c);++(a))
#define FORD(a,b,c) for (int (a)=(b);(a)>=(c);--(a))
#define FORSQ(a,b,c) for (int (a)=(b);(a)*(a)<=(c);++(a))
#define FORL(a,b,c) for (LL (a)=(b);(a)<=(c);++(a))
#define FORLSQ(a,b,c) for (int (a)=(b);(LL)(a)*(LL)(a)<=(c);++(a))
#define FORC(a,b,c) for (char (a)=(b);(a)<=(c);++(a))
#define REP(i,n) FOR(i,0,n)
#define REPN(i,n) FORN(i,1,n)
#define REPD(i,n) FORD(i,n,1)
#define MAX(a,b) a = max(a,b)
#define MIN(a,b) a = min(a,b)
#define SQR(x) ((x) * (x))
#define RESET(a,b) memset(a,b,sizeof(a))
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define ALL(v) v.begin(),v.end()
#define ALLA(arr,sz) arr,arr+sz
#define SIZE(v) (int)v.size()
#define SORT(v) sort(ALL(v))
#define REVERSE(v) reverse(ALL(v))
#define SORTA(arr,sz) sort(ALLA(arr,sz))
#define REVERSEA(arr,sz) reverse(ALLA(arr,sz))
#define PERMUTE next_permutation
#define TC(t) while(t--)
#define READ(n,data) {scanf("%d",&n); REPN(i,n) scanf("%d",&data[i]);}
inline string IntToString(int a){
char x[100];
sprintf(x,"%d",a); string s = x;
return s;
}
inline int StringToInt(string a){
char x[100]; int res;
strcpy(x,a.c_str()); sscanf(x,"%d",&res);
return res;
}
inline string GetString(void){
char x[1000005];
scanf("%s",x); string s = x;
return s;
}
inline string uppercase(string s){
int n = SIZE(s);
REP(i,n) if (s[i] >= 'a' && s[i] <= 'z') s[i] = s[i] - 'a' + 'A';
return s;
}
inline string lowercase(string s){
int n = SIZE(s);
REP(i,n) if (s[i] >= 'A' && s[i] <= 'Z') s[i] = s[i] - 'A' + 'a';
return s;
}
inline void OPEN (string s) {
freopen ((s + ".in").c_str (), "r", stdin);
freopen ((s + ".out").c_str (), "w", stdout);
}
//end of jonathanirvings' template v2.0.0 (BETA)
int n,m;
int parent[100005];
vi child[100005];
int dp[100005];
int risan;
priority_queue<int> pq;
inline void dfs(int now,int take)
{
int sz = SIZE(child[now]);
dp[now] = 1;
REP(i,sz) dfs(child[now][i],take);
while (!pq.empty()) pq.pop();
REP(i,sz) pq.push(dp[child[now][i]]);
REP(i,take)
{
if (pq.empty()) break;
dp[now] += pq.top();
pq.pop();
}
}
bool bisa(int x)
{
dfs(0,x);
return (dp[0] >= m);
}
int main()
{
scanf("%d %d",&n,&m);
FOR(i,1,n)
{
scanf("%d",&parent[i]);
--parent[i];
child[parent[i]].pb(i);
}
int L = 0, R = n, risan = -1;
while (L <= R)
{
int M = (L + R) >> 1;
if (bisa(M))
{
risan = M;
R = M - 1;
} else L = M + 1;
}
printf("%d\n",risan);
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
4804 KB |
Output is correct |
2 |
Correct |
0 ms |
4804 KB |
Output is correct |
3 |
Correct |
0 ms |
4804 KB |
Output is correct |
4 |
Correct |
0 ms |
4804 KB |
Output is correct |
5 |
Correct |
0 ms |
4804 KB |
Output is correct |
6 |
Correct |
0 ms |
4804 KB |
Output is correct |
7 |
Correct |
0 ms |
4804 KB |
Output is correct |
8 |
Correct |
0 ms |
4804 KB |
Output is correct |
9 |
Correct |
0 ms |
4804 KB |
Output is correct |
10 |
Correct |
0 ms |
4804 KB |
Output is correct |
11 |
Correct |
0 ms |
4804 KB |
Output is correct |
12 |
Correct |
0 ms |
4804 KB |
Output is correct |
13 |
Correct |
0 ms |
4804 KB |
Output is correct |
14 |
Correct |
0 ms |
4804 KB |
Output is correct |
15 |
Correct |
0 ms |
4804 KB |
Output is correct |
16 |
Correct |
0 ms |
4804 KB |
Output is correct |
17 |
Correct |
0 ms |
4804 KB |
Output is correct |
18 |
Correct |
0 ms |
4804 KB |
Output is correct |
19 |
Correct |
0 ms |
4804 KB |
Output is correct |
20 |
Correct |
0 ms |
4804 KB |
Output is correct |
21 |
Correct |
0 ms |
4804 KB |
Output is correct |
22 |
Correct |
0 ms |
4804 KB |
Output is correct |
23 |
Correct |
0 ms |
4804 KB |
Output is correct |
24 |
Correct |
0 ms |
4804 KB |
Output is correct |
25 |
Correct |
0 ms |
4804 KB |
Output is correct |
26 |
Correct |
0 ms |
4804 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
4804 KB |
Output is correct |
2 |
Correct |
0 ms |
4804 KB |
Output is correct |
3 |
Correct |
0 ms |
4804 KB |
Output is correct |
4 |
Correct |
0 ms |
4804 KB |
Output is correct |
5 |
Correct |
0 ms |
4804 KB |
Output is correct |
6 |
Correct |
0 ms |
4804 KB |
Output is correct |
7 |
Correct |
0 ms |
4804 KB |
Output is correct |
8 |
Correct |
0 ms |
4804 KB |
Output is correct |
9 |
Correct |
0 ms |
4804 KB |
Output is correct |
10 |
Correct |
0 ms |
4804 KB |
Output is correct |
11 |
Correct |
0 ms |
4804 KB |
Output is correct |
12 |
Correct |
0 ms |
4804 KB |
Output is correct |
13 |
Correct |
0 ms |
4804 KB |
Output is correct |
14 |
Correct |
0 ms |
4804 KB |
Output is correct |
15 |
Correct |
0 ms |
4804 KB |
Output is correct |
16 |
Correct |
0 ms |
4804 KB |
Output is correct |
17 |
Correct |
0 ms |
4804 KB |
Output is correct |
18 |
Correct |
0 ms |
4804 KB |
Output is correct |
19 |
Correct |
0 ms |
4804 KB |
Output is correct |
20 |
Correct |
0 ms |
4804 KB |
Output is correct |
21 |
Correct |
0 ms |
4804 KB |
Output is correct |
22 |
Correct |
0 ms |
4804 KB |
Output is correct |
23 |
Correct |
0 ms |
4804 KB |
Output is correct |
24 |
Correct |
0 ms |
4804 KB |
Output is correct |
25 |
Correct |
0 ms |
4804 KB |
Output is correct |
26 |
Correct |
0 ms |
4804 KB |
Output is correct |
27 |
Correct |
0 ms |
4804 KB |
Output is correct |
28 |
Correct |
0 ms |
4804 KB |
Output is correct |
29 |
Correct |
0 ms |
4804 KB |
Output is correct |
30 |
Correct |
0 ms |
4804 KB |
Output is correct |
31 |
Correct |
0 ms |
4804 KB |
Output is correct |
32 |
Correct |
0 ms |
4804 KB |
Output is correct |
33 |
Correct |
0 ms |
4804 KB |
Output is correct |
34 |
Correct |
0 ms |
4804 KB |
Output is correct |
35 |
Correct |
0 ms |
4804 KB |
Output is correct |
36 |
Correct |
0 ms |
4804 KB |
Output is correct |
37 |
Correct |
0 ms |
4804 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
4804 KB |
Output is correct |
2 |
Correct |
176 ms |
6784 KB |
Output is correct |
3 |
Correct |
64 ms |
6256 KB |
Output is correct |
4 |
Correct |
64 ms |
6256 KB |
Output is correct |
5 |
Correct |
172 ms |
6784 KB |
Output is correct |
6 |
Correct |
144 ms |
6520 KB |
Output is correct |
7 |
Correct |
140 ms |
6520 KB |
Output is correct |
8 |
Correct |
132 ms |
6388 KB |
Output is correct |
9 |
Correct |
140 ms |
6520 KB |
Output is correct |
10 |
Correct |
120 ms |
6256 KB |
Output is correct |
11 |
Correct |
148 ms |
6388 KB |
Output is correct |
12 |
Correct |
184 ms |
6652 KB |
Output is correct |
13 |
Correct |
148 ms |
6652 KB |
Output is correct |
14 |
Correct |
88 ms |
5992 KB |
Output is correct |
15 |
Correct |
152 ms |
6652 KB |
Output is correct |
16 |
Correct |
92 ms |
5992 KB |
Output is correct |
17 |
Correct |
124 ms |
6388 KB |
Output is correct |
18 |
Correct |
60 ms |
5728 KB |
Output is correct |
19 |
Correct |
20 ms |
5332 KB |
Output is correct |
20 |
Correct |
52 ms |
5992 KB |
Output is correct |
21 |
Correct |
36 ms |
5728 KB |
Output is correct |
22 |
Correct |
12 ms |
5200 KB |
Output is correct |
23 |
Correct |
48 ms |
5992 KB |
Output is correct |
24 |
Correct |
56 ms |
6124 KB |
Output is correct |
25 |
Correct |
0 ms |
4804 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
4804 KB |
Output is correct |
2 |
Correct |
100 ms |
5512 KB |
Output is correct |
3 |
Correct |
96 ms |
6344 KB |
Output is correct |
4 |
Correct |
88 ms |
6388 KB |
Output is correct |
5 |
Correct |
88 ms |
7708 KB |
Output is correct |
6 |
Correct |
68 ms |
6256 KB |
Output is correct |
7 |
Correct |
80 ms |
13188 KB |
Output is correct |
8 |
Correct |
172 ms |
6520 KB |
Output is correct |
9 |
Correct |
184 ms |
6520 KB |
Output is correct |
10 |
Correct |
124 ms |
6124 KB |
Output is correct |
11 |
Correct |
48 ms |
5332 KB |
Output is correct |
12 |
Correct |
148 ms |
6256 KB |
Output is correct |
13 |
Correct |
100 ms |
5860 KB |
Output is correct |
14 |
Correct |
144 ms |
6256 KB |
Output is correct |
15 |
Correct |
164 ms |
6520 KB |
Output is correct |
16 |
Correct |
72 ms |
5596 KB |
Output is correct |
17 |
Correct |
60 ms |
5596 KB |
Output is correct |
18 |
Correct |
108 ms |
6124 KB |
Output is correct |
19 |
Correct |
124 ms |
6124 KB |
Output is correct |
20 |
Correct |
52 ms |
5464 KB |
Output is correct |
21 |
Correct |
32 ms |
5200 KB |
Output is correct |
22 |
Correct |
36 ms |
8400 KB |
Output is correct |
23 |
Correct |
48 ms |
9856 KB |
Output is correct |
24 |
Correct |
44 ms |
9792 KB |
Output is correct |
25 |
Correct |
32 ms |
6256 KB |
Output is correct |
26 |
Correct |
72 ms |
7312 KB |
Output is correct |
27 |
Correct |
68 ms |
6256 KB |
Output is correct |
28 |
Correct |
44 ms |
5728 KB |
Output is correct |
29 |
Correct |
56 ms |
6124 KB |
Output is correct |
30 |
Correct |
68 ms |
5992 KB |
Output is correct |
31 |
Correct |
68 ms |
5992 KB |
Output is correct |
32 |
Correct |
24 ms |
5200 KB |
Output is correct |
33 |
Correct |
32 ms |
5576 KB |
Output is correct |
34 |
Correct |
40 ms |
5148 KB |
Output is correct |
35 |
Correct |
4 ms |
4804 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
4804 KB |
Output is correct |
2 |
Correct |
92 ms |
5588 KB |
Output is correct |
3 |
Correct |
100 ms |
6344 KB |
Output is correct |
4 |
Correct |
72 ms |
6388 KB |
Output is correct |
5 |
Correct |
88 ms |
7708 KB |
Output is correct |
6 |
Correct |
68 ms |
6256 KB |
Output is correct |
7 |
Correct |
92 ms |
13184 KB |
Output is correct |
8 |
Correct |
164 ms |
6520 KB |
Output is correct |
9 |
Correct |
100 ms |
5776 KB |
Output is correct |
10 |
Correct |
96 ms |
6344 KB |
Output is correct |
11 |
Correct |
92 ms |
6388 KB |
Output is correct |
12 |
Correct |
88 ms |
7708 KB |
Output is correct |
13 |
Correct |
64 ms |
6256 KB |
Output is correct |
14 |
Correct |
80 ms |
13184 KB |
Output is correct |
15 |
Correct |
172 ms |
6520 KB |
Output is correct |
16 |
Correct |
176 ms |
6520 KB |
Output is correct |
17 |
Correct |
168 ms |
6520 KB |
Output is correct |
18 |
Correct |
156 ms |
6388 KB |
Output is correct |
19 |
Correct |
120 ms |
6124 KB |
Output is correct |
20 |
Correct |
108 ms |
5992 KB |
Output is correct |
21 |
Correct |
112 ms |
6124 KB |
Output is correct |
22 |
Correct |
28 ms |
5200 KB |
Output is correct |
23 |
Correct |
108 ms |
5992 KB |
Output is correct |
24 |
Correct |
44 ms |
5332 KB |
Output is correct |
25 |
Correct |
64 ms |
5596 KB |
Output is correct |
26 |
Correct |
64 ms |
5596 KB |
Output is correct |
27 |
Correct |
144 ms |
6256 KB |
Output is correct |
28 |
Correct |
152 ms |
6388 KB |
Output is correct |
29 |
Correct |
148 ms |
6388 KB |
Output is correct |
30 |
Correct |
12 ms |
4936 KB |
Output is correct |
31 |
Correct |
28 ms |
5068 KB |
Output is correct |
32 |
Correct |
164 ms |
6388 KB |
Output is correct |
33 |
Correct |
152 ms |
6256 KB |
Output is correct |
34 |
Correct |
28 ms |
5200 KB |
Output is correct |
35 |
Correct |
164 ms |
6388 KB |
Output is correct |
36 |
Correct |
168 ms |
6388 KB |
Output is correct |
37 |
Correct |
124 ms |
6124 KB |
Output is correct |
38 |
Correct |
112 ms |
5992 KB |
Output is correct |
39 |
Correct |
164 ms |
6388 KB |
Output is correct |
40 |
Correct |
12 ms |
4936 KB |
Output is correct |
41 |
Correct |
56 ms |
5464 KB |
Output is correct |
42 |
Correct |
60 ms |
11732 KB |
Output is correct |
43 |
Correct |
28 ms |
8040 KB |
Output is correct |
44 |
Correct |
48 ms |
9972 KB |
Output is correct |
45 |
Correct |
72 ms |
7312 KB |
Output is correct |
46 |
Correct |
16 ms |
5464 KB |
Output is correct |
47 |
Correct |
52 ms |
10304 KB |
Output is correct |
48 |
Correct |
64 ms |
11968 KB |
Output is correct |
49 |
Correct |
76 ms |
12872 KB |
Output is correct |
50 |
Correct |
76 ms |
7444 KB |
Output is correct |
51 |
Correct |
40 ms |
6256 KB |
Output is correct |
52 |
Correct |
48 ms |
5860 KB |
Output is correct |
53 |
Correct |
48 ms |
5992 KB |
Output is correct |
54 |
Correct |
20 ms |
5464 KB |
Output is correct |
55 |
Correct |
60 ms |
5992 KB |
Output is correct |
56 |
Correct |
48 ms |
5596 KB |
Output is correct |
57 |
Correct |
128 ms |
6388 KB |
Output is correct |
58 |
Correct |
28 ms |
5464 KB |
Output is correct |
59 |
Correct |
28 ms |
5596 KB |
Output is correct |
60 |
Correct |
56 ms |
5992 KB |
Output is correct |
61 |
Correct |
28 ms |
5332 KB |
Output is correct |
62 |
Correct |
48 ms |
5728 KB |
Output is correct |
63 |
Correct |
60 ms |
5728 KB |
Output is correct |
64 |
Correct |
84 ms |
6344 KB |
Output is correct |
65 |
Correct |
88 ms |
6344 KB |
Output is correct |
66 |
Correct |
48 ms |
5268 KB |
Output is correct |
67 |
Correct |
44 ms |
5284 KB |
Output is correct |
68 |
Correct |
68 ms |
5448 KB |
Output is correct |
69 |
Correct |
32 ms |
5124 KB |
Output is correct |
70 |
Correct |
76 ms |
5676 KB |
Output is correct |
71 |
Correct |
40 ms |
5260 KB |
Output is correct |
72 |
Correct |
0 ms |
4804 KB |
Output is correct |