Submission #1371303
Source Code Expand
#include <iostream> #include <vector> #include <queue> using namespace std; typedef pair<int,int> P; int n,k,a[100000],ans = 0,d[100000]; vector<int> rev[100000]; void dfs(int v,int depth){ d[v] = depth; for(int i = 0;i < rev[v].size();i++){ int to = rev[v][i]; if(d[to] == -1) dfs(to,depth + 1); } } void dfs2(int v){ d[v] = 0; for(int i = 0;i < rev[v].size();i++){ int to = rev[v][i]; if(d[to]) dfs2(to); } } bool used[100000] = {}; int main(){ cin >> n >> k; for(int i = 0;i < n;i++) { cin >> a[i];a[i]--; if(i) rev[a[i]].push_back(i); d[i] = -1; } if(a[0]) ans++; dfs(0,0); priority_queue<P> que; for(int i = 0;i < n;i++){ if(d[i] > k) que.push(P(d[i],i)); } while(!que.empty()){ P p = que.top();que.pop(); int v = p.second; if(d[v] <= k) continue; for(int i = 0;i < k - 1;i++) v = a[v]; ans++; dfs2(v); } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Teleporter |
User | hoget157 |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 945 Byte |
Status | AC |
Exec Time | 72 ms |
Memory | 12280 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 | 3 ms | 2560 KB |
0_01.txt | AC | 3 ms | 2560 KB |
0_02.txt | AC | 3 ms | 2560 KB |
1_00.txt | AC | 3 ms | 2560 KB |
1_01.txt | AC | 3 ms | 2560 KB |
1_02.txt | AC | 67 ms | 12280 KB |
1_03.txt | AC | 72 ms | 12280 KB |
1_04.txt | AC | 70 ms | 12280 KB |
1_05.txt | AC | 70 ms | 12280 KB |
1_06.txt | AC | 62 ms | 11772 KB |
1_07.txt | AC | 60 ms | 11772 KB |
1_08.txt | AC | 55 ms | 11136 KB |
1_09.txt | AC | 50 ms | 11136 KB |
1_10.txt | AC | 63 ms | 9972 KB |
1_11.txt | AC | 68 ms | 9972 KB |
1_12.txt | AC | 72 ms | 9972 KB |
1_13.txt | AC | 66 ms | 7672 KB |
1_14.txt | AC | 68 ms | 7672 KB |
1_15.txt | AC | 68 ms | 7672 KB |
1_16.txt | AC | 38 ms | 5756 KB |
1_17.txt | AC | 32 ms | 5116 KB |
1_18.txt | AC | 32 ms | 5116 KB |
1_19.txt | AC | 20 ms | 3832 KB |
1_20.txt | AC | 20 ms | 3832 KB |
1_21.txt | AC | 20 ms | 3832 KB |
1_22.txt | AC | 59 ms | 6136 KB |
1_23.txt | AC | 61 ms | 6136 KB |
1_24.txt | AC | 62 ms | 6136 KB |
1_25.txt | AC | 58 ms | 5624 KB |
1_26.txt | AC | 58 ms | 5624 KB |
1_27.txt | AC | 58 ms | 5624 KB |
1_28.txt | AC | 46 ms | 5240 KB |
1_29.txt | AC | 34 ms | 4352 KB |
1_30.txt | AC | 34 ms | 4096 KB |
1_31.txt | AC | 64 ms | 6140 KB |
1_32.txt | AC | 45 ms | 4992 KB |
1_33.txt | AC | 44 ms | 4992 KB |
1_34.txt | AC | 43 ms | 4992 KB |
1_35.txt | AC | 67 ms | 6520 KB |
1_36.txt | AC | 45 ms | 5376 KB |
1_37.txt | AC | 44 ms | 5376 KB |
1_38.txt | AC | 45 ms | 5376 KB |
1_39.txt | AC | 68 ms | 6524 KB |
1_40.txt | AC | 66 ms | 6520 KB |
1_41.txt | AC | 45 ms | 5376 KB |
1_42.txt | AC | 44 ms | 5376 KB |
1_43.txt | AC | 67 ms | 6780 KB |
1_44.txt | AC | 67 ms | 6780 KB |
1_45.txt | AC | 60 ms | 6780 KB |
1_46.txt | AC | 45 ms | 5632 KB |
1_47.txt | AC | 67 ms | 7932 KB |
1_48.txt | AC | 67 ms | 7932 KB |
1_49.txt | AC | 60 ms | 7932 KB |
1_50.txt | AC | 45 ms | 6784 KB |
1_51.txt | AC | 69 ms | 11256 KB |
1_52.txt | AC | 70 ms | 11256 KB |
1_53.txt | AC | 72 ms | 11256 KB |
1_54.txt | AC | 47 ms | 10112 KB |