結果

問題 No.2205 Lights Out on Christmas Tree
ユーザー 👑 rin204rin204
提出日時 2023-02-03 21:38:39
言語 C++17(gcc12)
(gcc 12.3.0 + boost 1.87.0)
結果
AC  
実行時間 77 ms / 2,000 ms
コード長 5,998 bytes
コンパイル時間 1,965 ms
コンパイル使用メモリ 213,584 KB
実行使用メモリ 21,248 KB
最終ジャッジ日時 2024-07-02 19:28:07
合計ジャッジ時間 5,885 ms
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
5,248 KB
testcase_01 AC 1 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 2 ms
5,376 KB
testcase_04 AC 1 ms
5,376 KB
testcase_05 AC 2 ms
5,376 KB
testcase_06 AC 2 ms
5,376 KB
testcase_07 AC 1 ms
5,376 KB
testcase_08 AC 2 ms
5,376 KB
testcase_09 AC 1 ms
5,376 KB
testcase_10 AC 2 ms
5,376 KB
testcase_11 AC 60 ms
15,804 KB
testcase_12 AC 62 ms
15,800 KB
testcase_13 AC 63 ms
15,888 KB
testcase_14 AC 65 ms
15,804 KB
testcase_15 AC 72 ms
21,248 KB
testcase_16 AC 45 ms
10,880 KB
testcase_17 AC 45 ms
10,880 KB
testcase_18 AC 2 ms
5,376 KB
testcase_19 AC 65 ms
15,616 KB
testcase_20 AC 66 ms
14,976 KB
testcase_21 AC 65 ms
14,900 KB
testcase_22 AC 59 ms
15,952 KB
testcase_23 AC 68 ms
14,976 KB
testcase_24 AC 66 ms
15,268 KB
testcase_25 AC 66 ms
15,012 KB
testcase_26 AC 76 ms
14,900 KB
testcase_27 AC 69 ms
15,816 KB
testcase_28 AC 60 ms
15,964 KB
testcase_29 AC 61 ms
16,000 KB
testcase_30 AC 75 ms
14,976 KB
testcase_31 AC 67 ms
15,740 KB
testcase_32 AC 68 ms
15,232 KB
testcase_33 AC 68 ms
15,100 KB
testcase_34 AC 68 ms
14,928 KB
testcase_35 AC 73 ms
14,848 KB
testcase_36 AC 74 ms
14,976 KB
testcase_37 AC 66 ms
14,892 KB
testcase_38 AC 77 ms
15,016 KB
testcase_39 AC 66 ms
15,536 KB
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

// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using ull = unsigned long long;
template <class T>
using pq = priority_queue<T>;
template <class T>
using qp = priority_queue<T, vector<T>, greater<T>>;
#define vec(T, A, ...) vector<T> A(__VA_ARGS__);
#define vvec(T, A, h, ...) vector<vector<T>> A(h, vector<T>(__VA_ARGS__));
#define vvvec(T, A, h1, h2, ...) vector<vector<vector<T>>> A(h1, vector<vector<T>>(h2, vector<T>(__VA_ARGS__)));
#define endl "\n"
#define spa ' '
#define len(A) A.size()
#define all(A) begin(A), end(A)
#define fori1(a) for(ll _ = 0; _ < (a); _++)
#define fori2(i, a) for(ll i = 0; i < (a); i++)
#define fori3(i, a, b) for(ll i = (a); i < (b); i++)
#define fori4(i, a, b, c) for(ll i = (a); ((c) > 0 || i > (b)) && ((c) < 0 || i < (b)); i += (c))
#define overload4(a, b, c, d, e, ...) e
#define fori(...) overload4(__VA_ARGS__, fori4, fori3, fori2, fori1)(__VA_ARGS__)
template <typename T>
vector<tuple<ll, T>> ENUMERATE(vector<T> &A, ll s = 0){
vector<tuple<ll, T>> ret(A.size());
for(int i = 0; i < A.size(); i++) ret[i] = {i + s, A[i]};
return ret;
}
vector<tuple<ll, char>> ENUMERATE(string &A, ll s = 0){
vector<tuple<ll, char>> ret(A.size());
for(int i = 0; i < A.size(); i++) ret[i] = {i + s, A[i]};
return ret;
}
#define enum1(A) fori(A.size())
#define enum2(a, A) for(auto a:A)
#define enum3(i, a, A) for(auto&& [i, a]: ENUMERATE(A))
#define enum4(i, a, A, s) for(auto&& [i, a]: ENUMERATE(A, s))
#define enum(...) overload4(__VA_ARGS__, enum4, enum3, enum2, enum1)(__VA_ARGS__)
template <typename T, typename S>
vector<tuple<T, S>> ZIP(vector<T> &A, vector<S> &B){
int n = min(A.size(), B.size());
vector<tuple<T, S>> ret(n);
for(int i = 0; i < n; i++) ret[i] = {A[i], B[i]};
return ret;
}
template <typename T, typename S>
vector<tuple<ll, T, S>> ENUMZIP(vector<T> &A, vector<S> &B, ll s = 0){
int n = min(A.size(), B.size());
vector<tuple<ll, T, S>> ret(n);
for(int i = 0; i < n; i++) ret[i] = {i + s, A[i], B[i]};
return ret;
}
#define zip4(a, b, A, B) for(auto&& [a, b]: ZIP(A, B))
#define enumzip5(i, a, b, A, B) for(auto&& [i, a, b]: ENUMZIP(A, B))
#define enumzip6(i, a, b, A, B, s) for(auto&& [i, a, b]: ENUMZIP(A, B, s))
#define overload6(a, b, c, d, e, f, g, ...) g
#define zip(...) overload6(__VA_ARGS__, enumzip6, enumzip5, zip4, _, _, _)(__VA_ARGS__)
vector<char> stoc(string &S){
int n = S.size();
vector<char> ret(n);
for(int i = 0; i < n; i++) ret[i] = S[i];
return ret;
}
#define INT(...) int __VA_ARGS__; inp(__VA_ARGS__);
#define LL(...) ll __VA_ARGS__; inp(__VA_ARGS__);
#define STRING(...) string __VA_ARGS__; inp(__VA_ARGS__);
#define CHAR(...) char __VA_ARGS__; inp(__VA_ARGS__);
#define VEC(T, A, n) vector<T> A(n); inp(A);
#define VVEC(T, A, n, m) vector<vector<T>> A(n, vector<T>(m)); inp(A);
const ll MOD1 = 1000000007;
const ll MOD9 = 998244353;
template<class T> auto min(const T& a){
return *min_element(all(a));
}
template<class T> auto max(const T& a){
return *max_element(all(a));
}
template <class T, class S>
inline bool chmax(T &a, const S &b) {
return (a < b ? a = b, 1 : 0);
}
template <class T, class S>
inline bool chmin(T &a, const S &b) {
return (a > b ? a = b, 1 : 0);
}
void FLUSH(){cout << flush;}
void print(){cout << endl;}
template <class Head, class... Tail>
void print(Head &&head, Tail &&... tail) {
cout << head;
if (sizeof...(Tail)) cout << spa;
print(forward<Tail>(tail)...);
}
template<typename T>
void print(vector<T> &A){
int n = A.size();
for(int i = 0; i < n; i++){
cout << A[i];
if(i == n - 1) cout << endl;
else cout << spa;
}
}
template<typename T>
void print(vector<vector<T>> &A){
for(auto &row: A) print(row);
}
template<typename T, typename S>
void print(pair<T, S> &A){
cout << A.first << spa << A.second << endl;
}
template<typename T, typename S>
void print(vector<pair<T, S>> &A){
for(auto &row: A) print(row);
}
template<typename T, typename S>
void prisep(vector<T> &A, S sep){
int n = A.size();
for(int i = 0; i < n; i++){
cout << A[i];
if(i == n - 1) cout << endl;
else cout << sep;
}
}
template<typename T, typename S>
void priend(T A, S end){
cout << A << end;
}
template<typename T>
void priend(T A){
priend(A, spa);
}
template<class... T>
void inp(T&... a){
(cin >> ... >> a);
}
template<typename T>
void inp(vector<T> &A){
for(auto &a:A) cin >> a;
}
template<typename T>
void inp(vector<vector<T>> &A){
for(auto &row:A) inp(row);
}
template<typename T, typename S>
void inp(pair<T, S> &A){
inp(A.first, A.second);
}
template<typename T, typename S>
void inp(vector<pair<T, S>> &A){
for(auto &row: A) inp(row.first, row.second);
}
template<typename T>
T sum(vector<T> &A){
T tot = 0;
for(auto a:A) tot += a;
return tot;
}
template<typename T>
pair<vector<T>, map<T, int>> compression(vector<T> X){
sort(all(X));
X.erase(unique(all(X)), X.end());
map<T, int> mp;
for(int i = 0; i < X.size(); i++) mp[X[i]] = i;
return {X, mp};
}
void solve(){
INT(n);
vvec(int, edges, n);
fori(n - 1){
INT(u, v);
u--;
v--;
edges[u].push_back(v);
edges[v].push_back(u);
}
VEC(int, C, n);
fori(i, n) C[i] ^= 1;
int ans = 0;
auto dfs=[&](auto &&self, int pos, int bpos) -> int {
int res = C[pos];
for(auto npos:edges[pos]){
if(npos == bpos) continue;
auto tmp = self(self, npos, pos);
ans += tmp;
res ^= tmp;
}
return res;
};
auto res = dfs(dfs, 0, -1);
if(res == 1) ans = -1;
print(ans);
}
int main(){
cin.tie(0)->sync_with_stdio(0);
// cout << fixed << setprecision(12);
int t;
t = 1;
// cin >> t;
while(t--) solve();
return 0;
}
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