結果
問題 | No.2532 Want Play More |
ユーザー | au7777 |
提出日時 | 2023-11-14 11:59:08 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 228 ms / 2,000 ms |
コード長 | 3,350 bytes |
コンパイル時間 | 3,982 ms |
コンパイル使用メモリ | 240,440 KB |
実行使用メモリ | 29,824 KB |
最終ジャッジ日時 | 2024-09-26 03:34:19 |
合計ジャッジ時間 | 7,777 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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 | 228 ms
14,208 KB |
testcase_02 | AC | 213 ms
14,464 KB |
testcase_03 | AC | 197 ms
13,824 KB |
testcase_04 | AC | 188 ms
13,696 KB |
testcase_05 | AC | 186 ms
13,568 KB |
testcase_06 | AC | 162 ms
29,824 KB |
testcase_07 | AC | 4 ms
5,376 KB |
testcase_08 | AC | 7 ms
5,376 KB |
testcase_09 | AC | 6 ms
5,376 KB |
testcase_10 | AC | 81 ms
8,448 KB |
testcase_11 | AC | 77 ms
8,320 KB |
testcase_12 | AC | 141 ms
11,392 KB |
testcase_13 | AC | 97 ms
9,344 KB |
testcase_14 | AC | 31 ms
5,376 KB |
testcase_15 | AC | 199 ms
14,208 KB |
testcase_16 | AC | 158 ms
12,416 KB |
testcase_17 | AC | 5 ms
5,376 KB |
testcase_18 | AC | 115 ms
10,368 KB |
testcase_19 | AC | 160 ms
12,800 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 114 ms
14,880 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> typedef long long int ll; using namespace std; typedef pair<ll, ll> P; using namespace atcoder; template<typename T> using min_priority_queue = priority_queue<T, vector<T>, greater<T>>; #define USE998244353 #ifdef USE998244353 const ll MOD = 998244353; // const double PI = 3.1415926535897932; using mint = modint998244353; #else const ll MOD = 1000000007; using mint = modint1000000007; #endif #pragma region //使いがち const int MAX = 2000001; long long fac[MAX], finv[MAX], inv[MAX]; void COMinit() { fac[0] = fac[1] = 1; finv[0] = finv[1] = 1; inv[1] = 1; for (int i = 2; i < MAX; i++){ fac[i] = fac[i - 1] * i % MOD; inv[i] = MOD - inv[MOD%i] * (MOD / i) % MOD; finv[i] = finv[i - 1] * inv[i] % MOD; } } long long COM(int n, int k){ if (n < k) return 0; if (n < 0 || k < 0) return 0; return fac[n] * (finv[k] * finv[n - k] % MOD) % MOD; } ll gcd(ll x, ll y) { if (y == 0) return x; else if (y > x) { return gcd (y, x); } else return gcd(x % y, y); } ll lcm(ll x, ll y) { return x / gcd(x, y) * y; } ll my_sqrt(ll x) { // ll m = 0; ll M = 3000000001; while (M - m > 1) { ll now = (M + m) / 2; if (now * now <= x) { m = now; } else { M = now; } } return m; } ll keta(ll num, ll arity) { ll ret = 0; while (num) { num /= arity; ret++; } return ret; } ll ceil(ll n, ll m) { // n > 0, m > 0 ll ret = n / m; if (n % m) ret++; return ret; } ll pow_ll(ll x, ll n) { if (n == 0) return 1; if (n % 2) { return pow_ll(x, n - 1) * x; } else { ll tmp = pow_ll(x, n / 2); return tmp * tmp; } } vector<ll> compress(vector<ll>& v) { // [3 5 5 6 1 1 10 1] -> [1 2 2 3 0 0 4 0] vector<ll> u = v; sort(u.begin(), u.end()); u.erase(unique(u.begin(),u.end()),u.end()); map<ll, ll> mp; for (int i = 0; i < u.size(); i++) { mp[u[i]] = i; } for (int i = 0; i < v.size(); i++) { v[i] = mp[v[i]]; } return v; } vector<ll> Eratosthenes( const ll N ) { vector<bool> is_prime( N + 1 ); for( ll i = 0; i <= N; i++ ) { is_prime[ i ] = true; } vector<ll> P; for( ll i = 2; i <= N; i++ ) { if( is_prime[ i ] ) { for( ll j = 2 * i; j <= N; j += i ) { is_prime[ j ] = false; } P.emplace_back( i ); } } return P; } #pragma endregion int n; int dfs(int cur, int par, bool wantMax, const vector<vector<int>>& e) { int ret; if (wantMax) ret = 0; else ret = n; bool flag = false; for (auto nex : e[cur]) { if (nex == par) continue; flag = true; if (wantMax) ret = max(ret, dfs(nex, cur, !wantMax, e) + 1); else ret = min(ret, dfs(nex, cur, !wantMax, e) + 1); } if (!flag) return 0; return ret; } int main() { cin >> n; vector<vector<int>> e(n); for (int i = 0; i < n - 1; i++) { int a, b; cin >> a >> b; a--; b--; e[a].push_back(b); e[b].push_back(a); } cout << dfs(0, -1, true, e) << '\n'; cout << dfs(0, -1, false, e) << '\n'; return 0; }