結果
問題 | No.898 tri-βutree |
ユーザー | tatyam |
提出日時 | 2019-10-04 21:46:20 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 10,496 bytes |
コンパイル時間 | 2,476 ms |
コンパイル使用メモリ | 218,844 KB |
実行使用メモリ | 29,880 KB |
最終ジャッジ日時 | 2024-10-03 07:24:56 |
合計ジャッジ時間 | 7,142 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 102 ms
29,880 KB |
testcase_01 | AC | 3 ms
6,816 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll=long long; using ld=long double; using ull=unsigned long long; using uint=unsigned int; using pcc=pair<char,char>; using pii=pair<int,int>; using pll=pair<ll,ll>; using pdd=pair<double,double>; using tuplis=pair<ll,pll>; using tuplis2=pair<pll,ll>; template<class T> using pq=priority_queue<T,vector<T>,greater<T>>; const ll LINF=0x1fffffffffffffff; const ll MINF=0x7fffffffffff; const int INF=0x3fffffff; const ll MOD=1000000007; const ll MODD=998244353; const ld DINF=numeric_limits<ld>::infinity(); const ld EPS=1e-9; const ld PI=3.141592653589793238462643383279; const vector<ll>four{0,1,0,-1,0}; #define _overload4(_1,_2,_3,_4,name,...) name #define _overload3(_1,_2,_3,name,...) name #define _rep1(n) for(ll i=0;i<n;++i) #define _rep2(i,n) for(ll i=0;i<n;++i) #define _rep3(i,a,b) for(ll i=a;i<b;++i) #define _rep4(i,a,b,c) for(ll i=a;i<b;i+=c) #define rep(...) _overload4(__VA_ARGS__,_rep4,_rep3,_rep2,_rep1)(__VA_ARGS__) #define _rrep1(n) for(ll i=(n)-1;i>=0;i--) #define _rrep2(i,n) for(ll i=(n)-1;i>=0;i--) #define _rrep3(i,a,b) for(ll i=(b)-1;i>=(a);i--) #define _rrep4(i,a,b,c) for(ll i=a+(b-a-1)/c*c;i>=a;i-=c) #define rrep(...) _overload4(__VA_ARGS__,_rrep4,_rrep3,_rrep2,_rrep1)(__VA_ARGS__) #define each(i,a) for(auto &i:a) #define sum(...) accumulate(range(__VA_ARGS__),0LL) #define dsum(...) accumulate(range(__VA_ARGS__),double(0)) #define _range(i) (i).begin(),(i).end() #define _range2(i,k) (i).begin(),(i).begin()+k #define _range3(i,a,b) (i).begin()+a,(i).begin()+b #define range(...) _overload3(__VA_ARGS__,_range3,_range2,_range)(__VA_ARGS__) #define _rrange(i) (i).rbegin(),(i).rend() #define _rrange2(i,k) (i).rbegin(),(i).rbegin()+k #define _rrange3(i,a,b) (i).rbegin()+a,(i).rbegin()+b #define rrange(...) _overload3(__VA_ARGS__,_rrange3,_rrange2,_rrange)(__VA_ARGS__) #define elif else if #define unless(a) if(!(a)) #define mp make_pair #define mt make_tuple #define INT(...) int __VA_ARGS__;in(__VA_ARGS__) #define LL(...) ll __VA_ARGS__;in(__VA_ARGS__) #define ULL(...) ull __VA_ARGS__;in(__VA_ARGS__) #define STR(...) string __VA_ARGS__;in(__VA_ARGS__) #define CHR(...) char __VA_ARGS__;in(__VA_ARGS__) #define DBL(...) double __VA_ARGS__;in(__VA_ARGS__) #define vec(type,name,...) vector<type> name(__VA_ARGS__) #define VEC(type,name,size) vector<type> name(size);in(name) #define vv(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__)) #define VV(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__));in(name) #define vvv(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__))) inline constexpr ll gcd(ll a,ll b){if(!a||!b)return 0;while(b){ll c=b;b=a%b;a=c;}return a;} inline constexpr ll lcm(ll a,ll b){if(!a||!b)return 0;return a*b/gcd(a,b);} template<class T> inline constexpr T min(vector<T> &v){return *min_element(range(v));} inline char min(string &v){return *min_element(range(v));} template<class T> inline constexpr T max(vector<T> &v){return *max_element(range(v));} inline char max(string &v){return *max_element(range(v));} inline constexpr ll intpow(ll a,ll b){ll ans=1;for(ll i=1;b;i*=2){if(b&i){b^=i;ans*=a;}a*=a;}return ans;} template<typename T> inline constexpr bool chmin(T &mn,const T &cnt){if(mn>cnt){mn=cnt;return 1;}else return 0;} template<typename T> inline constexpr bool chmax(T &mx,const T &cnt){if(mx<cnt){mx=cnt;return 1;}else return 0;} template<class T> unordered_map<T,ll> press(vector<T> &a){ auto b = a; sort(range(b)); b.erase(unique(range(b)), b.end()); unordered_map<T,ll> ans; rep(b.size()) ans[b[i]] = i; each(i, a) i = ans[i]; return ans; } template<class T> map<T,ll> press_map(vector<T> &a){ auto b = a; sort(range(b)); b.erase(unique(range(b)), b.end()); map<T,ll> ans; rep(b.size()) ans[b[i]] = i; each(i, a) i = ans[i]; return ans; } inline int scan(){ return getchar(); } inline void scan(int &a){ scanf("%d", &a); } inline void scan(unsigned &a){ scanf("%u", &a); } inline void scan(long &a){ scanf("%ld", &a); } inline void scan(long long &a){ scanf("%lld", &a); } inline void scan(unsigned long long &a){ scanf("%llu", &a); } inline void scan(char &a){ cin >> a; } inline void scan(float &a){ scanf("%f", &a); } inline void scan(double &a){ scanf("%lf", &a); } inline void scan(long double &a){ scanf("%Lf", &a); } inline void scan(vector<bool> &vec){ for(unsigned i = 0; i < vec.size(); i++) { int a; scan(a); vec[i] = a; } } inline void scan(char a[]){ scanf("%s", a); } inline void scan(string &a){ cin >> a; } template<class T> inline void scan(vector<T> &vec); template<class T, size_t size> inline void scan(array<T, size> &vec); template<class T, class L> inline void scan(pair<T, L> &p); template<class T, size_t size> inline void scan(T (&vec)[size]); template<class T> inline void scan(vector<T> &vec){ for(auto &i : vec) scan(i); } template<class T, size_t size> inline void scan(array<T, size> &vec){ for(auto &i : vec) scan(i); } template<class T, class L> inline void scan(pair<T, L> &p){ scan(p.first); scan(p.second); } template<class T, size_t size> inline void scan(T (&vec)[size]){ for(auto &i : vec) scan(i); } template<class T> inline void scan(T &a){ cin>>a; } inline void in(){} template <class Head, class... Tail> inline void in(Head &head, Tail&... tail){ scan(head); in(tail...); } inline void print(){ putchar(' '); } inline void print(const bool &a){ printf("%d", a); } inline void print(const int &a){ printf("%d", a); } inline void print(const unsigned &a){ printf("%u", a); } inline void print(const long &a){ printf("%ld", a); } inline void print(const long long &a){ printf("%lld", a); } inline void print(const unsigned long long &a){ printf("%llu", a); } inline void print(const char &a){ printf("%c", a); } inline void print(const char a[]){ printf("%s", a); } inline void print(const float &a){ printf("%.15f", a); } inline void print(const double &a){ printf("%.15f", a); } inline void print(const long double &a){ printf("%.15Lf", a); } template<class T> void print(const vector<T> &vec); template<class T, size_t size> void print(const array<T, size> &vec); template<class T, class L> void print(const pair<T, L> &p); template<class T, size_t size> inline void print(const T (&vec)[size]); template<class T> void print(const vector<T> &vec){ if(vec.empty()) return; print(vec[0]); for(auto i = vec.begin(); ++i != vec.end(); ){ putchar(' '); print(*i); } } template<class T, size_t size> void print(const array<T, size> &vec){ print(vec[0]); for(auto i = vec.begin(); ++i != vec.end(); ){ putchar(' '); print(*i); } } template<class T, class L> void print(const pair<T, L> &p){ print(p.first); putchar(' '); print(p.second); } template<class T, size_t size> inline void print(const T (&vec)[size]){ print(vec[0]); for(auto i = vec; ++i != end(vec); ){ putchar(' '); print(*i); } } template<class T> inline void print(const T &a){ cout << a; } inline int out(){ putchar('\n'); return 0; } template<class T> inline int out(const T &t){ print(t); putchar('\n'); return 0; } template<class Head, class... Tail> inline int out(const Head &head, const Tail&... tail){ print(head); putchar(' '); out(tail...); return 0; } template <class T> inline void err(T t){cerr<<t<<'\n';} template<class Head, class... Tail> inline void err(const Head &head, const Tail&... tail){ cerr<<head<<' '; err(tail...); } inline void err(){cerr<<'\n';} inline int first(const bool &i){return out(i?"first":"second");} inline int yes(const bool &i){return out(i?"yes":"no");} inline int Yes(const bool &i){return out(i?"Yes":"No");} inline int YES(const bool &i){return out(i?"YES":"NO");} inline int Yay(const bool &i){return out(i?"Yay!":":(");} inline int Possible(const bool &i){return out(i?"Possible":"Impossible");} inline int POSSIBLE(const bool &i){return out(i?"POSSIBLE":"IMPOSSIBLE");} inline void Case(ll i){printf("Case #%lld: ",i);} template< typename T > struct edge { int src, to; T cost; edge(int to, T cost) : src(-1), to(to), cost(cost) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost) {} edge &operator=(const int &x) { to = x; return *this; } operator int() const { return to; } }; template< typename T > using Edges = vector< edge< T > >; template< typename T > using WeightedGraph = vector< Edges< T > >; using UnWeightedGraph = vector< vector< int > >; template< typename T > using Matrix = vector< vector< T > >; template< typename G > struct DoublingLowestCommonAncestor { const int LOG; vector< int > dep; const G &g; vector< vector< int > > table; DoublingLowestCommonAncestor(const G &g) : g(g), dep(g.size()), LOG(32 - __builtin_clz(g.size())) { table.assign(LOG, vector< int >(g.size(), -1)); } void dfs(int idx, int par, int d) { table[0][idx] = par; dep[idx] = d; for(auto &to : g[idx]) { if(to != par) dfs(to, idx, d + 1); } } void build() { dfs(0, -1, 0); for(int k = 0; k + 1 < LOG; k++) { for(int i = 0; i < table[k].size(); i++) { if(table[k][i] == -1) table[k + 1][i] = -1; else table[k + 1][i] = table[k][table[k][i]]; } } } int query(int u, int v) { if(dep[u] > dep[v]) swap(u, v); for(int i = LOG - 1; i >= 0; i--) { if(((dep[v] - dep[u]) >> i) & 1) v = table[i][v]; } if(u == v) return u; for(int i = LOG - 1; i >= 0; i--) { if(table[i][u] != table[i][v]) { u = table[i][u]; v = table[i][v]; } } return table[0][u]; } }; ll n=100000; WeightedGraph<ll> G(n); ll sum[100001]; void dfs(int idx, int par) { for(auto &to : G[idx]) { if(to != par) sum[to] += sum[idx] + to.cost, dfs(to, idx); } } signed main(){ in(n); UnWeightedGraph g(n); rep(n-1){ LL(u,v,w); g[u].push_back(v); g[v].push_back(u); G[u].emplace_back(u,v,w); G[v].emplace_back(v,u,w); } DoublingLowestCommonAncestor< UnWeightedGraph > lca(g); lca.build(); dfs(0, -1); LL(q); rep(_,q){ LL(x,y,z); ll xy=lca.query(x,y),yz=lca.query(y,z),zx=lca.query(z,x); ll ans=sum[x]+sum[y]+sum[z]; if(xy==yz)out(ans-sum[xy]-sum[zx]); elif(yz==zx)out(ans-sum[yz]-sum[xy]); elif(zx==xy)out(ans-sum[zx]-sum[yz]); } }