Submission #237236

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
237236	2020-06-05 11:30:38	IgorI	Cat in a tree (BOI17_catinatree)	C++17	51 / 100	280 ms	524292 KiB

catinatree

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 200000;
const int K = 2000;
int n, d;
int dp[N][K];
int p[N];
vector<int> graph[N];
void dfs(int v)
{
    for (auto u : graph[v]) dfs(u);
    dp[v][0] = 1;
    for (auto u : graph[v]) dp[v][0] += dp[u][d - 1];
    for (int j = d; j > 0; j--)
    {
        if (2 * j >= d)
        {
            for (auto u : graph[v])
            {
                dp[v][j] += dp[u][j - 1];
            }
        }
        else
        {
 
 
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Compilation message (stderr)

catinatree.cpp: In function 'void dfs(int)':
catinatree.cpp:31:17: warning: unused variable 'allow' [-Wunused-variable]
             int allow = d - j - 1;
                 ^~~~~

• Subtask 1: 11 / 11
• Subtask 2: 40 / 40
• Subtask 3: 0 / 49