Submission #993477

#	Time	Username	Problem	Language	Result	Execution time	Memory
993477		ramalzaher	September (APIO24_september)	C++17	100 / 100	165 ms	18024 KiB

september

#include "september.h"
#include <bits/stdc++.h>
using namespace std;
 
const int N = 1e5 + 5;
vector<int> g[N];
int value[N];
 
void dfs(int node) {
	for(int to: g[node]) {
		dfs(to);
		value[node] = max(value[node], value[to]);
	}
}
 
int solve(int N, int M, vector<int> F, vector<vector<int>> S) {
	for(int i = 0; i <= N; i++) {
		g[i].clear();
		value[i] = 0;
	}
	for(int i = 1; i < N; i++) {
		g[F[i]].push_back(i);
	}
	for(int i = 0; i < M; i++) {
		for(int j = 0; j < N - 1; j++) {
			value[S[i][j]] = max(value[S[i][j]], j + 1);
		}
	}
	dfs(0);
	vector<int> values;
	for(int i = 1; i < N; i++) {
		values.push_back(value[i]);
	}
	sort(values.begin(), values.end());
	// for(int i: values) {
	// 	cout << i << " ";
	// }
	// cout << "\n";
	int pos = 0;
	int cnt = 0;
	for(int i = 1; i < N; i++) {
		while(pos != values.size() && values[pos] == i) {
			pos += 1;
		}
		if(i == pos) {
			cnt += 1;
		}
	}
	return cnt;
}

Compilation message (stderr)

september.cpp: In function 'int solve(int, int, std::vector<int>, std::vector<std::vector<int> >)':
september.cpp:42:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |   while(pos != values.size() && values[pos] == i) {
      |         ~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 14 / 14
• Subtask 3: 5 / 5
• Subtask 4: 9 / 9
• Subtask 5: 5 / 5
• Subtask 6: 11 / 11
• Subtask 7: 9 / 9
• Subtask 8: 11 / 11
• Subtask 9: 9 / 9
• Subtask 10: 16 / 16