Submission #3783695
Source Code Expand
#include<cmath> #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> #include<vector> using namespace std; const int maxn=1e5; int n,k,ans,tot; vector<int>vr[maxn+8]; int pre[maxn+8],now[maxn+8],son[maxn+8],dep[maxn+8],fa[maxn+8]; bool vis[maxn+8]; int read() { int x=0,f=1;char ch=getchar(); for (;ch<'0'||ch>'9';ch=getchar()) if (ch=='-') f=-1; for (;ch>='0'&&ch<='9';ch=getchar()) x=x*10+ch-'0'; return x*f; } void add(int u,int v) { pre[++tot]=now[u]; now[u]=tot; son[tot]=v; } void dfs(int x) { vr[dep[x]].push_back(x); for (int p=now[x];p;p=pre[p]) { int child=son[p]; fa[child]=x;dep[child]=dep[x]+1; dfs(child); } } void solve(int x) { for (int i=1;i<=k;i++) { if (vis[x]) return; vis[x]=1; x=fa[x]; } ans+=(x!=1); } int main() { n=read(),k=read(); int x=read();if (x!=1) ans=1; for (int i=2;i<=n;i++) { int f=read(); add(f,i); } dfs(1); vis[1]=1; for (int i=n;i;i--) for (vector<int>::iterator it=vr[i].begin();it!=vr[i].end();it++) solve(*it); printf("%d\n",ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Teleporter |
User | AlseoRoplyer |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 1207 Byte |
Status | AC |
Exec Time | 23 ms |
Memory | 10880 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 800 / 800 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_00.txt, 0_01.txt, 0_02.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 2 ms | 2560 KB |
0_01.txt | AC | 2 ms | 2560 KB |
0_02.txt | AC | 2 ms | 2560 KB |
1_00.txt | AC | 2 ms | 2560 KB |
1_01.txt | AC | 2 ms | 2560 KB |
1_02.txt | AC | 22 ms | 10880 KB |
1_03.txt | AC | 22 ms | 10880 KB |
1_04.txt | AC | 22 ms | 10880 KB |
1_05.txt | AC | 23 ms | 10880 KB |
1_06.txt | AC | 23 ms | 10880 KB |
1_07.txt | AC | 23 ms | 10880 KB |
1_08.txt | AC | 23 ms | 10880 KB |
1_09.txt | AC | 23 ms | 10880 KB |
1_10.txt | AC | 19 ms | 7808 KB |
1_11.txt | AC | 19 ms | 7808 KB |
1_12.txt | AC | 19 ms | 7808 KB |
1_13.txt | AC | 13 ms | 5376 KB |
1_14.txt | AC | 13 ms | 5376 KB |
1_15.txt | AC | 13 ms | 5376 KB |
1_16.txt | AC | 9 ms | 5244 KB |
1_17.txt | AC | 9 ms | 5244 KB |
1_18.txt | AC | 9 ms | 5244 KB |
1_19.txt | AC | 6 ms | 4728 KB |
1_20.txt | AC | 6 ms | 4728 KB |
1_21.txt | AC | 6 ms | 4728 KB |
1_22.txt | AC | 12 ms | 5248 KB |
1_23.txt | AC | 12 ms | 5248 KB |
1_24.txt | AC | 12 ms | 5120 KB |
1_25.txt | AC | 11 ms | 5116 KB |
1_26.txt | AC | 11 ms | 5116 KB |
1_27.txt | AC | 11 ms | 5116 KB |
1_28.txt | AC | 11 ms | 5116 KB |
1_29.txt | AC | 11 ms | 5116 KB |
1_30.txt | AC | 11 ms | 5244 KB |
1_31.txt | AC | 13 ms | 5248 KB |
1_32.txt | AC | 14 ms | 5248 KB |
1_33.txt | AC | 14 ms | 5248 KB |
1_34.txt | AC | 14 ms | 5248 KB |
1_35.txt | AC | 14 ms | 5120 KB |
1_36.txt | AC | 15 ms | 5120 KB |
1_37.txt | AC | 15 ms | 5120 KB |
1_38.txt | AC | 15 ms | 5248 KB |
1_39.txt | AC | 14 ms | 5248 KB |
1_40.txt | AC | 15 ms | 5248 KB |
1_41.txt | AC | 15 ms | 5248 KB |
1_42.txt | AC | 15 ms | 5248 KB |
1_43.txt | AC | 15 ms | 5504 KB |
1_44.txt | AC | 16 ms | 5504 KB |
1_45.txt | AC | 16 ms | 5504 KB |
1_46.txt | AC | 16 ms | 5504 KB |
1_47.txt | AC | 18 ms | 6656 KB |
1_48.txt | AC | 19 ms | 6656 KB |
1_49.txt | AC | 19 ms | 6656 KB |
1_50.txt | AC | 20 ms | 6656 KB |
1_51.txt | AC | 22 ms | 9984 KB |
1_52.txt | AC | 22 ms | 9984 KB |
1_53.txt | AC | 22 ms | 9984 KB |
1_54.txt | AC | 23 ms | 9984 KB |