Submission #1110592

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Source Code Expand

#include<iostream>
#include<cstdio>
#include<string>
#include<algorithm>
#include<vector>
#include<queue>
#include<functional>
#include<map>
#include<cstring>
#include<unordered_map>
using namespace std;

vector<int>a[100005];
int b[100005];
int saiki(int c) {
	if (a[c].size() == 0)return 0;
	for (int d = 0; d < a[c].size(); d++) {
		b[d] = saiki(a[c][d]);
	}
	sort(b, b + a[c].size(), greater<int>());
	int MAX = 0;
	for (int e = 0; e < a[c].size(); e++) {
		MAX = max(MAX, b[e] + e + 1);
	}
	return MAX;
}
int main() {
	int c; cin >> c;
	for (int d = 1; d < c; d++) {
		int e; scanf("%d", &e); e--;
		a[e].push_back(d);
	}
	cout << saiki(0) << endl;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:30:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   int e; scanf("%d", &e); e--;
                         ^

Judge Result