結果
問題 | No.2277 Honest or Dishonest ? |
ユーザー | jiangly |
提出日時 | 2023-04-21 21:28:44 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 67 ms / 2,000 ms |
コード長 | 6,237 bytes |
コンパイル時間 | 2,467 ms |
コンパイル使用メモリ | 210,544 KB |
実行使用メモリ | 9,600 KB |
最終ジャッジ日時 | 2024-11-08 06:22:00 |
合計ジャッジ時間 | 6,486 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 47 ms
7,680 KB |
testcase_04 | AC | 50 ms
8,576 KB |
testcase_05 | AC | 21 ms
6,528 KB |
testcase_06 | AC | 37 ms
6,528 KB |
testcase_07 | AC | 33 ms
6,272 KB |
testcase_08 | AC | 19 ms
6,656 KB |
testcase_09 | AC | 32 ms
7,040 KB |
testcase_10 | AC | 23 ms
5,248 KB |
testcase_11 | AC | 12 ms
5,248 KB |
testcase_12 | AC | 18 ms
5,248 KB |
testcase_13 | AC | 43 ms
7,168 KB |
testcase_14 | AC | 21 ms
5,248 KB |
testcase_15 | AC | 17 ms
6,016 KB |
testcase_16 | AC | 29 ms
6,272 KB |
testcase_17 | AC | 14 ms
5,248 KB |
testcase_18 | AC | 45 ms
8,320 KB |
testcase_19 | AC | 47 ms
8,448 KB |
testcase_20 | AC | 37 ms
6,912 KB |
testcase_21 | AC | 29 ms
5,632 KB |
testcase_22 | AC | 31 ms
6,528 KB |
testcase_23 | AC | 42 ms
6,316 KB |
testcase_24 | AC | 27 ms
6,400 KB |
testcase_25 | AC | 37 ms
7,808 KB |
testcase_26 | AC | 14 ms
5,888 KB |
testcase_27 | AC | 20 ms
5,248 KB |
testcase_28 | AC | 18 ms
5,760 KB |
testcase_29 | AC | 27 ms
6,912 KB |
testcase_30 | AC | 19 ms
5,248 KB |
testcase_31 | AC | 35 ms
6,784 KB |
testcase_32 | AC | 24 ms
6,528 KB |
testcase_33 | AC | 47 ms
8,064 KB |
testcase_34 | AC | 51 ms
7,936 KB |
testcase_35 | AC | 9 ms
5,248 KB |
testcase_36 | AC | 30 ms
6,272 KB |
testcase_37 | AC | 45 ms
6,912 KB |
testcase_38 | AC | 10 ms
5,248 KB |
testcase_39 | AC | 14 ms
5,248 KB |
testcase_40 | AC | 8 ms
5,248 KB |
testcase_41 | AC | 51 ms
8,320 KB |
testcase_42 | AC | 36 ms
6,784 KB |
testcase_43 | AC | 61 ms
9,600 KB |
testcase_44 | AC | 63 ms
9,600 KB |
testcase_45 | AC | 62 ms
9,472 KB |
testcase_46 | AC | 61 ms
9,600 KB |
testcase_47 | AC | 64 ms
9,600 KB |
testcase_48 | AC | 63 ms
9,472 KB |
testcase_49 | AC | 67 ms
9,600 KB |
testcase_50 | AC | 65 ms
9,472 KB |
testcase_51 | AC | 61 ms
9,600 KB |
testcase_52 | AC | 60 ms
9,600 KB |
ソースコード
#include <bits/stdc++.h> using i64 = long long; template<class T> constexpr T power(T a, i64 b) { T res = 1; for (; b; b /= 2, a *= a) { if (b % 2) { res *= a; } } return res; } constexpr i64 mul(i64 a, i64 b, i64 p) { i64 res = a * b - i64(1.L * a * b / p) * p; res %= p; if (res < 0) { res += p; } return res; } template<i64 P> struct MLong { i64 x; constexpr MLong() : x{} {} constexpr MLong(i64 x) : x{norm(x % getMod())} {} static i64 Mod; constexpr static i64 getMod() { if (P > 0) { return P; } else { return Mod; } } constexpr static void setMod(i64 Mod_) { Mod = Mod_; } constexpr i64 norm(i64 x) const { if (x < 0) { x += getMod(); } if (x >= getMod()) { x -= getMod(); } return x; } constexpr i64 val() const { return x; } explicit constexpr operator i64() const { return x; } constexpr MLong operator-() const { MLong res; res.x = norm(getMod() - x); return res; } constexpr MLong inv() const { assert(x != 0); return power(*this, getMod() - 2); } constexpr MLong &operator*=(MLong rhs) & { x = mul(x, rhs.x, getMod()); return *this; } constexpr MLong &operator+=(MLong rhs) & { x = norm(x + rhs.x); return *this; } constexpr MLong &operator-=(MLong rhs) & { x = norm(x - rhs.x); return *this; } constexpr MLong &operator/=(MLong rhs) & { return *this *= rhs.inv(); } friend constexpr MLong operator*(MLong lhs, MLong rhs) { MLong res = lhs; res *= rhs; return res; } friend constexpr MLong operator+(MLong lhs, MLong rhs) { MLong res = lhs; res += rhs; return res; } friend constexpr MLong operator-(MLong lhs, MLong rhs) { MLong res = lhs; res -= rhs; return res; } friend constexpr MLong operator/(MLong lhs, MLong rhs) { MLong res = lhs; res /= rhs; return res; } friend constexpr std::istream &operator>>(std::istream &is, MLong &a) { i64 v; is >> v; a = MLong(v); return is; } friend constexpr std::ostream &operator<<(std::ostream &os, const MLong &a) { return os << a.val(); } friend constexpr bool operator==(MLong lhs, MLong rhs) { return lhs.val() == rhs.val(); } friend constexpr bool operator!=(MLong lhs, MLong rhs) { return lhs.val() != rhs.val(); } }; template<> i64 MLong<0LL>::Mod = 1; template<int P> struct MInt { int x; constexpr MInt() : x{} {} constexpr MInt(i64 x) : x{norm(x % getMod())} {} static int Mod; constexpr static int getMod() { if (P > 0) { return P; } else { return Mod; } } constexpr static void setMod(int Mod_) { Mod = Mod_; } constexpr int norm(int x) const { if (x < 0) { x += getMod(); } if (x >= getMod()) { x -= getMod(); } return x; } constexpr int val() const { return x; } explicit constexpr operator int() const { return x; } constexpr MInt operator-() const { MInt res; res.x = norm(getMod() - x); return res; } constexpr MInt inv() const { assert(x != 0); return power(*this, getMod() - 2); } constexpr MInt &operator*=(MInt rhs) & { x = 1LL * x * rhs.x % getMod(); return *this; } constexpr MInt &operator+=(MInt rhs) & { x = norm(x + rhs.x); return *this; } constexpr MInt &operator-=(MInt rhs) & { x = norm(x - rhs.x); return *this; } constexpr MInt &operator/=(MInt rhs) & { return *this *= rhs.inv(); } friend constexpr MInt operator*(MInt lhs, MInt rhs) { MInt res = lhs; res *= rhs; return res; } friend constexpr MInt operator+(MInt lhs, MInt rhs) { MInt res = lhs; res += rhs; return res; } friend constexpr MInt operator-(MInt lhs, MInt rhs) { MInt res = lhs; res -= rhs; return res; } friend constexpr MInt operator/(MInt lhs, MInt rhs) { MInt res = lhs; res /= rhs; return res; } friend constexpr std::istream &operator>>(std::istream &is, MInt &a) { i64 v; is >> v; a = MInt(v); return is; } friend constexpr std::ostream &operator<<(std::ostream &os, const MInt &a) { return os << a.val(); } friend constexpr bool operator==(MInt lhs, MInt rhs) { return lhs.val() == rhs.val(); } friend constexpr bool operator!=(MInt lhs, MInt rhs) { return lhs.val() != rhs.val(); } }; template<> int MInt<0>::Mod = 1; template<int V, int P> constexpr MInt<P> CInv = MInt<P>(V).inv(); constexpr int P = 998244353; using Z = MInt<P>; int main() { std::ios::sync_with_stdio(false); std::cin.tie(nullptr); int N, Q; std::cin >> N >> Q; std::vector<std::vector<std::pair<int, int>>> adj(N); for (int i = 0; i < Q; i++) { int A, B, C; std::cin >> A >> B >> C; A--, B--; adj[A].push_back({B, C}); adj[B].push_back({A, C}); } Z ans = 1; std::vector<int> c(N, -1); for (int i = 0; i < N; i++) { if (c[i] == -1) { std::queue<int> q; q.push(i); c[i] = 0; while (!q.empty()) { int x = q.front(); q.pop(); for (auto [y, z] : adj[x]) { if (c[y] == -1) { c[y] = c[x] ^ z; q.push(y); } else if (c[y] != (c[x] ^ z)) { ans = 0; } } } ans *= 2; } } std::cout << ans << "\n"; return 0; }