AtCoder Grand Contest 009

Submission #1077298

Source codeソースコード

#include <vector>
#include <map>
#include <algorithm>
#include <cstdio>
using namespace std;

map<int,vector<int>>H;
int f(int i){
	vector<int>a;
	for(auto &e:H[i])a.push_back(-f(e));
	sort(a.begin(),a.end());
	int r=0;
	for(int i=1;i<=a.size();i++)r=max(r,i-a[i-1]);
	return r;
}
 
int main(){
	int N,a;
	scanf("%d",&N);
	for(int i=2;i<=N;i++)scanf("%d",&a),H[a].push_back(i);
	printf("%d\n",f(1));
}

Submission

Task問題 B - Tournament
User nameユーザ名 002_ciel
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 800
Source lengthソースコード長 422 Byte
File nameファイル名
Exec time実行時間 91 ms
Memory usageメモリ使用量 22144 KB

Compiler messageコンパイルメッセージ

./Main.cpp: In function ‘int main()’:
./Main.cpp:19:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&N);
^
./Main.cpp:20:55: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
for(int i=2;i<=N;i++)scanf("%d",&a),H[a].push_back(i);
^

Test case

Set

Set name Score得点 / Max score Cases
Sample - s1.txt,s2.txt,s3.txt
All 800 / 800 01.txt,02.txt,03.txt,04.txt,05.txt,06.txt,07.txt,08.txt,09.txt,10.txt,11.txt,12.txt,13.txt,14.txt,15.txt,16.txt,17.txt,18.txt,19.txt,20.txt,21.txt,22.txt,23.txt,24.txt,25.txt,26.txt,27.txt,28.txt,29.txt,30.txt,31.txt,32.txt,33.txt,34.txt,35.txt,36.txt,37.txt,38.txt,39.txt,40.txt,41.txt,42.txt,43.txt,44.txt,45.txt,46.txt,47.txt,48.txt,49.txt,50.txt,s1.txt,s2.txt,s3.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
01.txt AC 90 ms 9600 KB
02.txt AC 90 ms 9600 KB
03.txt AC 90 ms 9728 KB
04.txt AC 90 ms 9600 KB
05.txt AC 90 ms 9728 KB
06.txt AC 90 ms 9728 KB
07.txt AC 91 ms 9600 KB
08.txt AC 90 ms 9600 KB
09.txt AC 91 ms 9600 KB
10.txt AC 90 ms 9728 KB
11.txt AC 78 ms 22144 KB
12.txt AC 74 ms 18176 KB
13.txt AC 72 ms 16128 KB
14.txt AC 61 ms 14080 KB
15.txt AC 59 ms 12800 KB
16.txt AC 58 ms 11520 KB
17.txt AC 59 ms 10880 KB
18.txt AC 60 ms 10240 KB
19.txt AC 67 ms 10112 KB
20.txt AC 70 ms 9984 KB
21.txt AC 39 ms 8824 KB
22.txt AC 37 ms 8672 KB
23.txt AC 37 ms 8688 KB
24.txt AC 39 ms 8624 KB
25.txt AC 39 ms 8576 KB
26.txt AC 41 ms 8576 KB
27.txt AC 43 ms 8576 KB
28.txt AC 51 ms 8576 KB
29.txt AC 59 ms 8704 KB
30.txt AC 65 ms 8704 KB
31.txt AC 65 ms 9600 KB
32.txt AC 58 ms 9088 KB
33.txt AC 54 ms 8832 KB
34.txt AC 56 ms 8832 KB
35.txt AC 54 ms 8960 KB
36.txt AC 44 ms 8576 KB
37.txt AC 38 ms 8704 KB
38.txt AC 37 ms 8704 KB
39.txt AC 33 ms 8576 KB
40.txt AC 33 ms 8448 KB
41.txt AC 3 ms 256 KB
42.txt AC 3 ms 256 KB
43.txt AC 2 ms 256 KB
44.txt AC 3 ms 256 KB
45.txt AC 2 ms 256 KB
46.txt AC 3 ms 256 KB
47.txt AC 2 ms 256 KB
48.txt AC 3 ms 256 KB
49.txt AC 2 ms 256 KB
50.txt AC 2 ms 256 KB
s1.txt AC 2 ms 256 KB
s2.txt AC 3 ms 256 KB
s3.txt AC 2 ms 256 KB