結果
問題 | No.1605 Matrix Shape |
ユーザー | fastmath |
提出日時 | 2021-07-16 22:08:46 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 406 ms / 2,000 ms |
コード長 | 3,873 bytes |
コンパイル時間 | 1,647 ms |
コンパイル使用メモリ | 142,436 KB |
実行使用メモリ | 30,564 KB |
最終ジャッジ日時 | 2024-07-06 09:23:53 |
合計ジャッジ時間 | 6,618 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 5 ms
9,796 KB |
testcase_01 | AC | 5 ms
9,668 KB |
testcase_02 | AC | 4 ms
11,444 KB |
testcase_03 | AC | 5 ms
9,664 KB |
testcase_04 | AC | 4 ms
9,408 KB |
testcase_05 | AC | 5 ms
9,928 KB |
testcase_06 | AC | 5 ms
9,544 KB |
testcase_07 | AC | 5 ms
9,672 KB |
testcase_08 | AC | 6 ms
10,480 KB |
testcase_09 | AC | 6 ms
11,096 KB |
testcase_10 | AC | 6 ms
9,924 KB |
testcase_11 | AC | 5 ms
9,800 KB |
testcase_12 | AC | 6 ms
9,924 KB |
testcase_13 | AC | 5 ms
9,920 KB |
testcase_14 | AC | 5 ms
11,164 KB |
testcase_15 | AC | 5 ms
10,504 KB |
testcase_16 | AC | 5 ms
9,800 KB |
testcase_17 | AC | 5 ms
9,540 KB |
testcase_18 | AC | 5 ms
10,048 KB |
testcase_19 | AC | 398 ms
30,564 KB |
testcase_20 | AC | 267 ms
23,012 KB |
testcase_21 | AC | 257 ms
22,728 KB |
testcase_22 | AC | 338 ms
28,780 KB |
testcase_23 | AC | 406 ms
29,696 KB |
testcase_24 | AC | 397 ms
29,636 KB |
testcase_25 | AC | 59 ms
13,256 KB |
testcase_26 | AC | 58 ms
14,152 KB |
testcase_27 | AC | 58 ms
14,844 KB |
testcase_28 | AC | 57 ms
14,732 KB |
testcase_29 | AC | 58 ms
13,380 KB |
testcase_30 | AC | 272 ms
21,416 KB |
testcase_31 | AC | 236 ms
20,932 KB |
testcase_32 | AC | 159 ms
18,884 KB |
testcase_33 | AC | 146 ms
18,244 KB |
testcase_34 | AC | 43 ms
15,776 KB |
testcase_35 | AC | 234 ms
24,776 KB |
testcase_36 | AC | 110 ms
20,292 KB |
ソースコード
#include <iostream> #include <cstdio> #include <cstdlib> #include <algorithm> #include <cmath> #include <vector> #include <set> #include <map> #include <unordered_set> #include <unordered_map> #include <queue> #include <ctime> #include <cassert> #include <complex> #include <string> #include <cstring> #include <chrono> #include <random> #include <bitset> #include <fstream> #include <array> using namespace std; #define int long long #define ii pair <int, int> #define app push_back #define all(a) a.begin(), a.end() #define bp __builtin_popcountll #define ll long long #define mp make_pair #define x first #define y second #define Time (double)clock()/CLOCKS_PER_SEC #define debug(x) std::cerr << #x << ": " << x << '\n'; #define FORI(i,a,b) for (int i = (a); i < (b); ++i) #define FOR(i,a) FORI(i,0,a) #define ROFI(i,a,b) for (int i = (b)-1; i >= (a); --i) #define ROF(i,a) ROFI(i,0,a) #define rep(a) FOR(_,a) #define each(a,x) for (auto& a: x) #define FORN(i, n) FORI(i, 1, n + 1) using vi = vector<int>; template <typename T> std::istream& operator >>(std::istream& input, std::pair <T, T> & data) { input >> data.x >> data.y; return input; } template <typename T> std::istream& operator >>(std::istream& input, std::vector<T>& data) { for (T& x : data) input >> x; return input; } template <typename T> std::ostream& operator <<(std::ostream& output, const pair <T, T> & data) { output << "(" << data.x << "," << data.y << ")"; return output; } template <typename T> std::ostream& operator <<(std::ostream& output, const std::vector<T>& data) { for (const T& x : data) output << x << " "; return output; } std::ostream& operator <<(std::ostream& output, const __int128 &x) { __int128 n = x; if (n == 0) { output << "0"; return output; } if (n < 0) { n = -n; output << "-"; } string s; while (n) { s += '0' + (n%10); n /= 10; } reverse(all(s)); cout << s; return output; } ll div_up(ll a, ll b) { return a/b+((a^b)>0&&a%b); } // divide a by b rounded up ll div_down(ll a, ll b) { return a/b-((a^b)<0&&a%b); } // divide a by b rounded down ll math_mod(ll a, ll b) { return a - b * div_down(a, b); } #define tcT template<class T #define tcTU tcT, class U tcT> using V = vector<T>; tcT> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; } // set a = min(a,b) tcT> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; } ll gcd(ll a, ll b) { while (b) { tie(a, b) = mp(b, a % b); } return a; } int Bit(int mask, int bit) { return (mask >> bit) & 1; } const int N = 2e5+7; vi g[N]; bool used[N]; void dfs(int u) { used[u] = 1; each (v, g[u]) { if (!used[v]) { dfs(v); } } } int in[N], out[N]; signed main() { #ifdef LOCAL #else #define endl '\n' ios_base::sync_with_stdio(0); cin.tie(0); #endif int n; cin >> n; int some = -1; set <int> comp; rep (n) { int u, v; cin >> u >> v; out[u]++; in[v]++; some = u; g[u].app(v); g[v].app(u); comp.insert(u); comp.insert(v); } dfs(some); FOR (i, N) { if (g[i].size() && !used[i]) { cout << 0 << endl; exit(0); } } vi cnt(2); FOR (i, N) { if (in[i] != out[i]) { if (in[i] == out[i] + 1) { cnt[0]++; } else if (out[i] == in[i] + 1) { cnt[1]++; } else { cout << 0 << endl; exit(0); } } } if (cnt[0] == 0 && cnt[1] == 0) { cout << comp.size() << endl; } else if (cnt[0] == 1 && cnt[1] == 1) { cout << 1 << endl; } else { cout << 0 << endl; } }