結果

問題 No.2726 Rooted Tree Nim
ユーザー pitP
提出日時 2024-04-12 23:13:31
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 2,360 bytes
コンパイル時間 4,268 ms
コンパイル使用メモリ 253,900 KB
最終ジャッジ日時 2025-02-21 00:47:53
ジャッジサーバーID
(参考情報)
judge5 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 3 WA * 10
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); }
istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); }
istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); }
typedef long long ll;
typedef vector<vector<int>> Graph;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define FOR(i,l,r) for (int i = l;i < (int)(r); i++)
#define rep(i,n) for (int i = 0;i < (int)(n); i++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define my_sort(x) sort(x.begin(), x.end())
#define my_max(x) *max_element(all(x))
#define my_min(x) *min_element(all(x))
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const int INF = (1<<30) - 1;
const ll LINF = (1LL<<62) - 1;
const int MOD = 998244353;
const int MOD2 = 1e9+7;
const double PI = acos(-1);
vector<int> di = {1,0,-1,0};
vector<int> dj = {0,1,0,-1};
#ifdef LOCAL
# include <debug_print.hpp>
# define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
# define debug(...) (static_cast<void>(0))
#endif
void solve(){
int N, K; cin >> N >> K;
Graph g(N);
rep(i,N-1){
int X, Y; cin >> X >> Y;
X--;
Y--;
g[X].push_back(Y);
g[Y].push_back(X);
}
vector<ll> A(N);
rep(i,N) cin >> A[i];
vector<ll> dp(N);
function<ll(int, int)> dfs = [&](int now, int par){
dp[now] = 0;
ll x = 0;
for(int nxt : g[now]){
if(nxt == par) continue;
x ^= dfs(nxt, now);
dp[now] += dp[nxt];
}
dp[now] += A[now];
x ^= dp[now] % (K + 1);
return x;
};
ll x = dfs(0, -1);
cout << (x == 0 ? "K" : "P") << endl;
}
int main(){
cin.tie(0);
ios_base::sync_with_stdio(false);
int T; cin >> T;
while(T--) solve();
}
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