Submission #1825441
Source Code Expand
#include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace std; using namespace __gnu_pbds; #define fi first #define se second #define mp make_pair #define pb push_back #define fbo find_by_order #define ook order_of_key typedef long long ll; typedef pair<int,int> ii; typedef vector<int> vi; typedef long double ld; typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> pbds; typedef set<int>::iterator sit; typedef map<int,int>::iterator mit; typedef vector<int>::iterator vit; int a[100001]; vi adj[100001]; int h[100001]; int ans, k; void dfs(int u, int p) { h[u] = 1; for(int i = 0; i < adj[u].size(); i++) { int v = adj[u][i]; dfs(v, u); h[u] = max(h[u], h[v] + 1); } if(u != 1 && p != 1 && h[u] >= k) { ans++; h[u] = 0; } } int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n; cin >> n >> k; for(int i = 1; i <= n; i++) { cin >> a[i]; } ans = 0; if(a[1] != 1) { a[1] = 1; ans++; } for(int i = 2; i <= n; i++) { adj[a[i]].pb(i); } //now we have a tree dfs(1, -1); cout << ans; }
Submission Info
Submission Time | |
---|---|
Task | D - Teleporter |
User | vjudge4 |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 1132 Byte |
Status | AC |
Exec Time | 29 ms |
Memory | 14336 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 | 2684 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 | 28 ms | 14336 KB |
1_03.txt | AC | 28 ms | 14336 KB |
1_04.txt | AC | 28 ms | 14336 KB |
1_05.txt | AC | 28 ms | 14336 KB |
1_06.txt | AC | 28 ms | 14336 KB |
1_07.txt | AC | 29 ms | 14336 KB |
1_08.txt | AC | 29 ms | 14336 KB |
1_09.txt | AC | 28 ms | 14336 KB |
1_10.txt | AC | 26 ms | 10368 KB |
1_11.txt | AC | 26 ms | 10368 KB |
1_12.txt | AC | 26 ms | 10368 KB |
1_13.txt | AC | 24 ms | 6528 KB |
1_14.txt | AC | 23 ms | 6528 KB |
1_15.txt | AC | 23 ms | 6528 KB |
1_16.txt | AC | 16 ms | 5116 KB |
1_17.txt | AC | 16 ms | 5116 KB |
1_18.txt | AC | 16 ms | 5116 KB |
1_19.txt | AC | 10 ms | 3960 KB |
1_20.txt | AC | 10 ms | 3960 KB |
1_21.txt | AC | 10 ms | 3960 KB |
1_22.txt | AC | 21 ms | 4992 KB |
1_23.txt | AC | 21 ms | 4992 KB |
1_24.txt | AC | 21 ms | 4992 KB |
1_25.txt | AC | 20 ms | 4480 KB |
1_26.txt | AC | 20 ms | 4480 KB |
1_27.txt | AC | 20 ms | 4480 KB |
1_28.txt | AC | 13 ms | 4096 KB |
1_29.txt | AC | 13 ms | 4096 KB |
1_30.txt | AC | 13 ms | 4096 KB |
1_31.txt | AC | 22 ms | 4992 KB |
1_32.txt | AC | 22 ms | 4992 KB |
1_33.txt | AC | 22 ms | 4992 KB |
1_34.txt | AC | 22 ms | 4992 KB |
1_35.txt | AC | 23 ms | 5376 KB |
1_36.txt | AC | 23 ms | 5376 KB |
1_37.txt | AC | 23 ms | 5376 KB |
1_38.txt | AC | 23 ms | 5376 KB |
1_39.txt | AC | 23 ms | 5376 KB |
1_40.txt | AC | 23 ms | 5376 KB |
1_41.txt | AC | 23 ms | 5376 KB |
1_42.txt | AC | 23 ms | 5376 KB |
1_43.txt | AC | 23 ms | 5760 KB |
1_44.txt | AC | 23 ms | 5760 KB |
1_45.txt | AC | 23 ms | 5760 KB |
1_46.txt | AC | 23 ms | 5760 KB |
1_47.txt | AC | 24 ms | 7680 KB |
1_48.txt | AC | 25 ms | 7680 KB |
1_49.txt | AC | 25 ms | 7680 KB |
1_50.txt | AC | 25 ms | 7680 KB |
1_51.txt | AC | 27 ms | 12800 KB |
1_52.txt | AC | 27 ms | 12800 KB |
1_53.txt | AC | 27 ms | 12800 KB |
1_54.txt | AC | 27 ms | 12800 KB |