Submission #1353325
Source Code Expand
#include<stdio.h> #include<string.h> #include<iostream> #include<string> #include<cstdio> #include<vector> #include<algorithm> #include<functional> #define P pair<int,int> using namespace std; P S[100000]; int p[100000]; int d[100000]; int W[100000]; int DFS(int a) { if (d[a] != -1)return d[a]; return d[a] = DFS(p[a]) + 1; } signed main() { int n, k; scanf("%d%d", &n, &k); for (int i = 0; i < n; i++) { scanf("%d", &p[i]); p[i]--; } int ans = p[0] != 0; memset(d, -1, sizeof(d)); d[0] = 0; S[0] = { 0,0 }; for (int i = 1; i < n; i++) { DFS(i); S[i] = { d[i],i }; } sort(S, S + n, greater<P>()); for (int i = 0; i < n; i++) { if (S[i].second == 0)continue; int count = W[S[i].second]; if (count == k - 1&&p[S[i].second]!=0) { ans++; } else { W[p[S[i].second]] = max(count + 1,W[p[S[i].second]]); } } cout << ans << endl; }
Submission Info
Submission Time | |
---|---|
Task | D - Teleporter |
User | naoki2016 |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 911 Byte |
Status | AC |
Exec Time | 22 ms |
Memory | 3712 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:21:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] int n, k; scanf("%d%d", &n, &k); ^ ./Main.cpp:23:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &p[i]); ^
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 | 1 ms | 640 KB |
0_01.txt | AC | 1 ms | 640 KB |
0_02.txt | AC | 1 ms | 640 KB |
1_00.txt | AC | 1 ms | 640 KB |
1_01.txt | AC | 1 ms | 640 KB |
1_02.txt | AC | 21 ms | 2816 KB |
1_03.txt | AC | 21 ms | 2816 KB |
1_04.txt | AC | 21 ms | 3072 KB |
1_05.txt | AC | 22 ms | 3712 KB |
1_06.txt | AC | 21 ms | 2816 KB |
1_07.txt | AC | 21 ms | 3584 KB |
1_08.txt | AC | 21 ms | 2816 KB |
1_09.txt | AC | 21 ms | 3200 KB |
1_10.txt | AC | 21 ms | 2304 KB |
1_11.txt | AC | 21 ms | 2944 KB |
1_12.txt | AC | 21 ms | 2944 KB |
1_13.txt | AC | 22 ms | 1792 KB |
1_14.txt | AC | 22 ms | 2176 KB |
1_15.txt | AC | 22 ms | 2176 KB |
1_16.txt | AC | 17 ms | 1792 KB |
1_17.txt | AC | 18 ms | 2176 KB |
1_18.txt | AC | 18 ms | 2176 KB |
1_19.txt | AC | 12 ms | 1792 KB |
1_20.txt | AC | 12 ms | 1792 KB |
1_21.txt | AC | 12 ms | 1792 KB |
1_22.txt | AC | 20 ms | 1792 KB |
1_23.txt | AC | 21 ms | 2176 KB |
1_24.txt | AC | 20 ms | 2176 KB |
1_25.txt | AC | 19 ms | 1792 KB |
1_26.txt | AC | 20 ms | 2176 KB |
1_27.txt | AC | 19 ms | 2176 KB |
1_28.txt | AC | 19 ms | 1792 KB |
1_29.txt | AC | 17 ms | 2176 KB |
1_30.txt | AC | 16 ms | 2176 KB |
1_31.txt | AC | 21 ms | 2176 KB |
1_32.txt | AC | 21 ms | 2176 KB |
1_33.txt | AC | 22 ms | 2176 KB |
1_34.txt | AC | 21 ms | 2176 KB |
1_35.txt | AC | 22 ms | 2176 KB |
1_36.txt | AC | 22 ms | 2176 KB |
1_37.txt | AC | 22 ms | 2176 KB |
1_38.txt | AC | 22 ms | 2176 KB |
1_39.txt | AC | 22 ms | 2176 KB |
1_40.txt | AC | 22 ms | 2176 KB |
1_41.txt | AC | 22 ms | 2176 KB |
1_42.txt | AC | 22 ms | 2176 KB |
1_43.txt | AC | 22 ms | 2304 KB |
1_44.txt | AC | 22 ms | 2304 KB |
1_45.txt | AC | 22 ms | 2304 KB |
1_46.txt | AC | 22 ms | 2176 KB |
1_47.txt | AC | 22 ms | 2560 KB |
1_48.txt | AC | 22 ms | 2560 KB |
1_49.txt | AC | 22 ms | 2432 KB |
1_50.txt | AC | 22 ms | 2560 KB |
1_51.txt | AC | 21 ms | 2688 KB |
1_52.txt | AC | 21 ms | 3456 KB |
1_53.txt | AC | 21 ms | 2688 KB |
1_54.txt | AC | 21 ms | 3072 KB |