結果
問題 | No.1843 Tree ANDistance |
ユーザー | ゆにぽけ |
提出日時 | 2023-10-09 09:28:21 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 156 ms / 2,000 ms |
コード長 | 3,270 bytes |
コンパイル時間 | 1,501 ms |
コンパイル使用メモリ | 131,236 KB |
実行使用メモリ | 32,580 KB |
最終ジャッジ日時 | 2024-07-26 18:24:45 |
合計ジャッジ時間 | 7,054 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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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 | 145 ms
25,540 KB |
testcase_01 | AC | 144 ms
25,540 KB |
testcase_02 | AC | 150 ms
32,580 KB |
testcase_03 | AC | 156 ms
30,408 KB |
testcase_04 | AC | 145 ms
26,056 KB |
testcase_05 | AC | 120 ms
25,576 KB |
testcase_06 | AC | 116 ms
25,412 KB |
testcase_07 | AC | 141 ms
25,408 KB |
testcase_08 | AC | 149 ms
25,544 KB |
testcase_09 | AC | 149 ms
31,688 KB |
testcase_10 | AC | 150 ms
30,656 KB |
testcase_11 | AC | 144 ms
26,176 KB |
testcase_12 | AC | 101 ms
25,188 KB |
testcase_13 | AC | 113 ms
25,280 KB |
testcase_14 | AC | 10 ms
22,080 KB |
testcase_15 | AC | 11 ms
21,956 KB |
testcase_16 | AC | 9 ms
21,960 KB |
testcase_17 | AC | 9 ms
21,952 KB |
testcase_18 | AC | 8 ms
21,956 KB |
testcase_19 | AC | 11 ms
21,956 KB |
testcase_20 | AC | 9 ms
21,824 KB |
testcase_21 | AC | 8 ms
21,956 KB |
testcase_22 | AC | 7 ms
21,960 KB |
testcase_23 | AC | 8 ms
21,824 KB |
testcase_24 | AC | 8 ms
21,828 KB |
testcase_25 | AC | 8 ms
21,952 KB |
testcase_26 | AC | 8 ms
21,828 KB |
testcase_27 | AC | 8 ms
21,952 KB |
testcase_28 | AC | 87 ms
24,644 KB |
testcase_29 | AC | 48 ms
23,748 KB |
testcase_30 | AC | 58 ms
25,924 KB |
testcase_31 | AC | 102 ms
29,384 KB |
testcase_32 | AC | 76 ms
25,280 KB |
testcase_33 | AC | 26 ms
22,720 KB |
testcase_34 | AC | 58 ms
24,128 KB |
testcase_35 | AC | 8 ms
21,828 KB |
testcase_36 | AC | 8 ms
21,828 KB |
testcase_37 | AC | 8 ms
21,824 KB |
ソースコード
#include<iostream> #include<vector> #include<algorithm> #include<cstring> #include<cassert> #include<cmath> #include<ctime> #include<iomanip> #include<numeric> #include<stack> #include<queue> #include<map> #include<unordered_map> #include<set> #include<unordered_set> #include<bitset> #include<random> using namespace std; template<int m> struct modint { private: unsigned int value; static constexpr int mod() {return m;} public: constexpr modint(const long long x = 0) noexcept { long long y = x; if(y < 0 || y >= mod()) { y %= mod(); if(y < 0) y += mod(); } value = (unsigned int)y; } constexpr unsigned int val() noexcept {return value;} constexpr modint &operator+=(const modint &other) noexcept { value += other.value; if(value >= mod()) value -= mod(); return *this; } constexpr modint &operator-=(const modint &other) noexcept { unsigned int x = value; if(x < other.value) x += mod(); x -= other.value; value = x; return *this; } constexpr modint &operator*=(const modint &other) noexcept { unsigned long long x = value; x *= other.value; value = (unsigned int) (x % mod()); return *this; } constexpr modint &operator/=(const modint &other) noexcept { return *this *= other.inverse(); } constexpr modint inverse() const noexcept { assert(value); long long a = value,b = mod(),x = 1,y = 0; while(b) { long long q = a/b; a -= q*b; swap(a,b); x -= q*y; swap(x,y); } return modint(x); } constexpr modint power(long long N) const noexcept { assert(N >= 0); modint p = *this,ret = 1; while(N) { if(N & 1) ret *= p; p *= p; N >>= 1; } return ret; } constexpr modint operator+() {return *this;} constexpr modint operator-() {return modint() - *this;} constexpr modint &operator++(int) noexcept {return *this += 1;} constexpr modint &operator--(int) noexcept {return *this -= 1;} friend modint operator+(const modint& lhs, const modint& rhs) {return modint(lhs) += rhs;} friend modint operator-(const modint& lhs, const modint& rhs) {return modint(lhs) -= rhs;} friend modint operator*(const modint& lhs, const modint& rhs) {return modint(lhs) *= rhs;} friend modint operator/(const modint& lhs, const modint& rhs) {return modint(lhs) /= rhs;} friend ostream &operator<<(ostream &os,const modint &x) {return os << x.value;} }; //using mint = modint<998244353>; using mint = modint<1000000007>; int N; vector<pair<int,int>> G[1 << 17]; mint dp[1 << 17][30]; void dfs0(int u,int p) { for(auto [v,w]:G[u]) if(v != p) { dfs0(v,u); for(int i = 0;i < 30;i++) dp[u][i] += (w >> i & 1 ? dp[v][i] + 1:0); } } mint ans; void dfs1(int u,int p,int pw) { if(p >= 0) { for(int i = 0;i < 30;i++) if(pw >> i & 1) { mint pdp = dp[p][i]; pdp -= dp[u][i]+1; dp[u][i] += pdp + 1; } } for(int i = 0;i < 30;i++) ans += dp[u][i]*(1 << i); for(auto [v,w]:G[u]) if(v != p) dfs1(v,u,w); } void solve() { cin >> N; for(int i = 1;i < N;i++) { int u,v,w; cin >> u >> v >> w; u--; v--; G[u].push_back(make_pair(v,w)); G[v].push_back(make_pair(u,w)); } dfs0(0,-1); ans = 0; dfs1(0,-1,0); ans /= 2; cout << ans << endl; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int tt = 1; //cin >> tt; while(tt--) solve(); }