結果
問題 | No.1207 グラフX |
ユーザー | kaage |
提出日時 | 2020-07-31 10:56:53 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 387 ms / 2,000 ms |
コード長 | 6,255 bytes |
コンパイル時間 | 1,356 ms |
コンパイル使用メモリ | 131,552 KB |
実行使用メモリ | 34,596 KB |
最終ジャッジ日時 | 2024-07-05 23:16:29 |
合計ジャッジ時間 | 18,590 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 329 ms
20,568 KB |
testcase_01 | AC | 331 ms
20,644 KB |
testcase_02 | AC | 332 ms
20,516 KB |
testcase_03 | AC | 324 ms
20,636 KB |
testcase_04 | AC | 331 ms
20,640 KB |
testcase_05 | AC | 386 ms
34,592 KB |
testcase_06 | AC | 385 ms
34,592 KB |
testcase_07 | AC | 387 ms
34,596 KB |
testcase_08 | AC | 268 ms
16,288 KB |
testcase_09 | AC | 281 ms
18,716 KB |
testcase_10 | AC | 368 ms
27,552 KB |
testcase_11 | AC | 386 ms
34,596 KB |
testcase_12 | AC | 271 ms
16,660 KB |
testcase_13 | AC | 175 ms
11,424 KB |
testcase_14 | AC | 324 ms
19,996 KB |
testcase_15 | AC | 290 ms
17,572 KB |
testcase_16 | AC | 160 ms
11,684 KB |
testcase_17 | AC | 220 ms
15,264 KB |
testcase_18 | AC | 182 ms
15,136 KB |
testcase_19 | AC | 232 ms
13,852 KB |
testcase_20 | AC | 329 ms
20,388 KB |
testcase_21 | AC | 36 ms
8,792 KB |
testcase_22 | AC | 222 ms
15,396 KB |
testcase_23 | AC | 244 ms
16,412 KB |
testcase_24 | AC | 161 ms
14,240 KB |
testcase_25 | AC | 328 ms
20,276 KB |
testcase_26 | AC | 258 ms
17,308 KB |
testcase_27 | AC | 311 ms
19,104 KB |
testcase_28 | AC | 292 ms
18,848 KB |
testcase_29 | AC | 286 ms
18,724 KB |
testcase_30 | AC | 156 ms
12,556 KB |
testcase_31 | AC | 155 ms
11,296 KB |
testcase_32 | AC | 127 ms
12,580 KB |
testcase_33 | AC | 135 ms
12,576 KB |
testcase_34 | AC | 281 ms
17,444 KB |
testcase_35 | AC | 34 ms
8,900 KB |
testcase_36 | AC | 275 ms
18,596 KB |
testcase_37 | AC | 237 ms
15,900 KB |
testcase_38 | AC | 67 ms
10,012 KB |
testcase_39 | AC | 145 ms
13,472 KB |
testcase_40 | AC | 134 ms
11,168 KB |
testcase_41 | AC | 212 ms
13,728 KB |
testcase_42 | AC | 5 ms
8,156 KB |
testcase_43 | AC | 4 ms
7,988 KB |
testcase_44 | AC | 5 ms
7,988 KB |
testcase_45 | AC | 293 ms
20,640 KB |
testcase_46 | AC | 303 ms
20,640 KB |
testcase_47 | AC | 298 ms
20,768 KB |
testcase_48 | AC | 299 ms
20,636 KB |
ソースコード
#line 2 "/Users/kaage/Desktop/ProgrammingWorkspace/library/other/template.hpp" #define _CRT_SECURE_NO_WARNINGS #pragma target("avx") #pragma optimize("O3") #pragma optimize("unroll-loops") #include <algorithm> #include <bitset> #include <cassert> #include <cfloat> #include <climits> #include <cmath> #include <complex> #include <ctime> #include <deque> #include <fstream> #include <functional> #include <iomanip> #include <iostream> #include <iterator> #include <list> #include <map> #include <memory> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> #define rep(i,n) for(int i=0;i<(lint)(n);i++) #define REP(i,n) for(int i=1;i<=(lint)(n);i++) #define all(V) V.begin(),V.end() typedef long long lint; typedef unsigned long long ulint; typedef std::pair<int, int> P; typedef std::pair<lint, lint> LP; constexpr int INF = INT_MAX/2; constexpr lint LINF = LLONG_MAX/2; constexpr double eps = DBL_EPSILON; constexpr double PI=3.141592653589793238462643383279; template<class T> class prique :public std::priority_queue<T, std::vector<T>, std::greater<T>> {}; template <class T, class U> inline bool chmax(T& lhs, const U& rhs) { if (lhs < rhs) { lhs = rhs; return 1; } return 0; } template <class T, class U> inline bool chmin(T& lhs, const U& rhs) { if (lhs > rhs) { lhs = rhs; return 1; } return 0; } inline lint gcd(lint a, lint b) { while (b) { lint c = a; a = b; b = c % b; } return a; } inline lint lcm(lint a, lint b) { return a / gcd(a, b) * b; } bool isprime(lint n) { if (n == 1)return false; for (int i = 2; i * i <= n; i++) { if (n % i == 0)return false; } return true; } template<typename T> T mypow(T a, lint b) { if (!b)return T(1); if (b & 1)return mypow(a, b - 1) * a; T memo = mypow(a, b >> 1); return memo * memo; } lint modpow(lint a, lint b, lint m) { if (!b)return 1; if (b & 1)return modpow(a, b - 1, m) * a % m; lint memo = modpow(a, b >> 1, m); return memo * memo % m; } template<typename T> void printArray(std::vector<T>& vec) { rep(i, vec.size() - 1)std::cout << vec[i] << " "; std::cout << vec.back() << std::endl; } template<typename T> void printArray(T l, T r) { T rprev = r; rprev--; for (T i = l; i != rprev; i++) { std::cout << *i << " "; } std::cout << *rprev << std::endl; } #line 3 "/Users/kaage/Desktop/ProgrammingWorkspace/library/graph/UnionFind.hpp" class UnionFind { protected: std::vector<int> par, rank, size; public: UnionFind(unsigned int size) { par.resize(size); rank.resize(size, 0); this->size.resize(size, 1); rep(i, size) { par[i] = i; } } int find(int n) { if (par[n] == n)return n; return par[n] = find(par[n]); } void unite(int n, int m) { n = find(n); m = find(m); if (n == m)return; if (rank[n] < rank[m]) { par[n] = m; size[m] += size[n]; } else { par[m] = n; size[n] += size[m]; if (rank[n] == rank[m])rank[n]++; } } bool same(int n, int m) { return find(n) == find(m); } int getsize(int n) { return size[find(n)]; } }; #line 3 "/Users/kaage/Desktop/ProgrammingWorkspace/library/algebraic/ModInt.hpp" class ModInt { lint value; public: static const unsigned int modulo; ModInt() : value(0) {} template<typename T> ModInt(T value = 0) : value(value) { if (value < 0)value = -(lint)(-value % modulo) + modulo; this->value = value % modulo; } inline operator int()const { return value; } inline ModInt& operator+=(const ModInt& x) { value += x.value; if (value >= modulo)value -= modulo; return *this; } inline ModInt& operator++() { if (value == modulo - 1)value = 0; else value++; return *this; } inline ModInt operator-()const { return ModInt(0) -= *this; } inline ModInt& operator-=(const ModInt& x) { value -= x.value; if (value < 0)value += modulo; return *this; } inline ModInt& operator--() { if (value == 0)value = modulo - 1; else value--; return *this; } inline ModInt& operator*=(const ModInt& x) { value = value * x.value % modulo; return *this; } inline ModInt& operator/=(ModInt rhs) { int exp = modulo - 2; while (exp) { if (exp & 1)*this *= rhs; rhs *= rhs; exp >>= 1; } return *this; } template<typename T> ModInt operator+(const T& rhs)const { return ModInt(*this) += rhs; } template<typename T> ModInt& operator+=(const T& rhs) { return operator+=(ModInt(rhs)); } template<typename T> ModInt operator-(const T& rhs)const { return ModInt(*this) -= rhs; } template<typename T> ModInt& operator-=(const T& rhs) { return operator-=(ModInt(rhs)); } template<typename T> ModInt operator*(const T& rhs)const { return ModInt(*this) *= rhs; } template<typename T> ModInt& operator*=(const T& rhs) { return operator*=(ModInt(rhs)); } template<typename T> ModInt operator/(const T& rhs)const { return ModInt(*this) /= rhs; } template<typename T> ModInt& operator/=(const T& rhs) { return operator/=(ModInt(rhs)); } }; std::istream& operator>>(std::istream& ist, ModInt& x) { lint a; ist >> a; x = a; return ist; } #line 4 "main.cpp" const unsigned int ModInt::modulo=1000000007; int n,m,x; ModInt ans; std::vector<std::pair<int,P>> vec; std::vector<P> edges[200010]; bool used[200010]; int dfs(int node){ used[node]=true; int cnt=1; for(const P& i:edges[node]){ if(!used[i.first]){ int s=dfs(i.first); ans+=mypow(ModInt(x),i.second)*s*(n-s); cnt+=s; } } return cnt; } int main(){ std::cin>>n>>m>>x; rep(i,m){ int a,b,c; std::cin>>a>>b>>c; vec.push_back({c,{a,b}}); } UnionFind uf(n+1); for(const auto& i:vec){ if(!uf.same(i.second.first,i.second.second)){ uf.unite(i.second.first,i.second.second); edges[i.second.first].emplace_back(i.second.second,i.first); edges[i.second.second].emplace_back(i.second.first,i.first); } } dfs(1); std::cout<<ans<<std::endl; }