結果
問題 | No.1582 Vertexes vs Edges |
ユーザー | rniya |
提出日時 | 2021-07-02 22:24:16 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 60 ms / 2,000 ms |
コード長 | 4,677 bytes |
コンパイル時間 | 2,452 ms |
コンパイル使用メモリ | 208,120 KB |
実行使用メモリ | 14,336 KB |
最終ジャッジ日時 | 2024-06-29 12:09:49 |
合計ジャッジ時間 | 4,440 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 3 ms
5,376 KB |
testcase_05 | AC | 37 ms
12,928 KB |
testcase_06 | AC | 4 ms
5,376 KB |
testcase_07 | AC | 7 ms
5,376 KB |
testcase_08 | AC | 19 ms
8,064 KB |
testcase_09 | AC | 35 ms
12,288 KB |
testcase_10 | AC | 22 ms
9,088 KB |
testcase_11 | AC | 4 ms
5,376 KB |
testcase_12 | AC | 16 ms
7,168 KB |
testcase_13 | AC | 26 ms
9,472 KB |
testcase_14 | AC | 27 ms
9,472 KB |
testcase_15 | AC | 38 ms
11,904 KB |
testcase_16 | AC | 19 ms
7,424 KB |
testcase_17 | AC | 26 ms
9,216 KB |
testcase_18 | AC | 43 ms
13,696 KB |
testcase_19 | AC | 26 ms
9,856 KB |
testcase_20 | AC | 25 ms
8,832 KB |
testcase_21 | AC | 21 ms
8,320 KB |
testcase_22 | AC | 40 ms
12,544 KB |
testcase_23 | AC | 16 ms
6,656 KB |
testcase_24 | AC | 8 ms
5,376 KB |
testcase_25 | AC | 21 ms
7,936 KB |
testcase_26 | AC | 17 ms
6,912 KB |
testcase_27 | AC | 40 ms
11,648 KB |
testcase_28 | AC | 12 ms
6,016 KB |
testcase_29 | AC | 33 ms
10,368 KB |
testcase_30 | AC | 20 ms
7,808 KB |
testcase_31 | AC | 35 ms
10,496 KB |
testcase_32 | AC | 14 ms
6,400 KB |
testcase_33 | AC | 57 ms
14,292 KB |
testcase_34 | AC | 60 ms
14,336 KB |
testcase_35 | AC | 58 ms
14,336 KB |
testcase_36 | AC | 2 ms
5,376 KB |
testcase_37 | AC | 2 ms
5,376 KB |
testcase_38 | AC | 2 ms
5,376 KB |
ソースコード
#define LOCAL #include <bits/stdc++.h> using namespace std; #pragma region Macros typedef long long ll; typedef __int128_t i128; typedef unsigned int uint; typedef unsigned long long ull; #define ALL(x) (x).begin(), (x).end() template <typename T> istream& operator>>(istream& is, vector<T>& v) { for (T& x : v) is >> x; return is; } template <typename T> ostream& operator<<(ostream& os, const vector<T>& v) { for (int i = 0; i < (int)v.size(); i++) { os << v[i] << (i + 1 == (int)v.size() ? "" : " "); } return os; } template <typename T, typename U> ostream& operator<<(ostream& os, const pair<T, U>& p) { os << '(' << p.first << ',' << p.second << ')'; return os; } template <typename T, typename U, typename V> ostream& operator<<(ostream& os, const tuple<T, U, V>& t) { os << '(' << get<0>(t) << ',' << get<1>(t) << ',' << get<2>(t) << ')'; return os; } template <typename T, typename U, typename V, typename W> ostream& operator<<(ostream& os, const tuple<T, U, V, W>& t) { os << '(' << get<0>(t) << ',' << get<1>(t) << ',' << get<2>(t) << ',' << get<3>(t) << ')'; return os; } template <typename T, typename U> ostream& operator<<(ostream& os, const map<T, U>& m) { os << '{'; for (auto itr = m.begin(); itr != m.end();) { os << '(' << itr->first << ',' << itr->second << ')'; if (++itr != m.end()) os << ','; } os << '}'; return os; } template <typename T, typename U> ostream& operator<<(ostream& os, const unordered_map<T, U>& m) { os << '{'; for (auto itr = m.begin(); itr != m.end();) { os << '(' << itr->first << ',' << itr->second << ')'; if (++itr != m.end()) os << ','; } os << '}'; return os; } template <typename T> ostream& operator<<(ostream& os, const set<T>& s) { os << '{'; for (auto itr = s.begin(); itr != s.end();) { os << *itr; if (++itr != s.end()) os << ','; } os << '}'; return os; } template <typename T> ostream& operator<<(ostream& os, const multiset<T>& s) { os << '{'; for (auto itr = s.begin(); itr != s.end();) { os << *itr; if (++itr != s.end()) os << ','; } os << '}'; return os; } template <typename T> ostream& operator<<(ostream& os, const unordered_set<T>& s) { os << '{'; for (auto itr = s.begin(); itr != s.end();) { os << *itr; if (++itr != s.end()) os << ','; } os << '}'; return os; } template <typename T> ostream& operator<<(ostream& os, const deque<T>& v) { for (int i = 0; i < (int)v.size(); i++) { os << v[i] << (i + 1 == (int)v.size() ? "" : " "); } return os; } void debug_out() { cerr << '\n'; } template <class Head, class... Tail> void debug_out(Head&& head, Tail&&... tail) { cerr << head; if (sizeof...(Tail) > 0) cerr << ", "; debug_out(move(tail)...); } #ifdef LOCAL #define debug(...) \ cerr << " "; \ cerr << #__VA_ARGS__ << " :[" << __LINE__ << ":" << __FUNCTION__ << "]" << '\n'; \ cerr << " "; \ debug_out(__VA_ARGS__) #else #define debug(...) 42 #endif template <typename T> T gcd(T x, T y) { return y != 0 ? gcd(y, x % y) : x; } template <typename T> T lcm(T x, T y) { return x / gcd(x, y) * y; } template <class T1, class T2> inline bool chmin(T1& a, T2 b) { if (a > b) { a = b; return true; } return false; } template <class T1, class T2> inline bool chmax(T1& a, T2 b) { if (a < b) { a = b; return true; } return false; } #pragma endregion const int INF = 1e9; const long long IINF = 1e18; const int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; const char dir[4] = {'D', 'R', 'U', 'L'}; const long long MOD = 1000000007; // const long long MOD = 998244353; int main() { cin.tie(0); ios::sync_with_stdio(false); int N; cin >> N; vector<vector<int>> G(N); for (int i = 0; i < N - 1; i++) { int u, v; cin >> u >> v; u--, v--; G[u].emplace_back(v); G[v].emplace_back(u); } vector<vector<int>> dp(N, vector<int>(2, 0)); auto dfs = [&](auto self, int v, int p) -> void { dp[v][0] = 1; for (int& u : G[v]) { if (u == p) continue; self(self, u, v); dp[v][0] += min(dp[u][0], dp[u][1]); dp[v][1] += dp[u][0]; } }; dfs(dfs, 0, -1); int ans = min(dp[0][0], dp[0][1]); cout << ans << '\n'; return 0; }