結果
問題 | No.1293 2種類の道路 |
ユーザー | Hyado |
提出日時 | 2020-11-20 22:01:02 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 60 ms / 2,000 ms |
コード長 | 3,438 bytes |
コンパイル時間 | 2,190 ms |
コンパイル使用メモリ | 183,656 KB |
実行使用メモリ | 14,208 KB |
最終ジャッジ日時 | 2024-07-23 13:00:59 |
合計ジャッジ時間 | 3,785 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
(要ログイン)
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
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 59 ms
11,008 KB |
testcase_10 | AC | 60 ms
10,880 KB |
testcase_11 | AC | 59 ms
11,008 KB |
testcase_12 | AC | 59 ms
10,880 KB |
testcase_13 | AC | 60 ms
10,752 KB |
testcase_14 | AC | 47 ms
14,120 KB |
testcase_15 | AC | 48 ms
14,208 KB |
testcase_16 | AC | 53 ms
12,288 KB |
testcase_17 | AC | 57 ms
12,928 KB |
testcase_18 | AC | 38 ms
13,444 KB |
testcase_19 | AC | 36 ms
14,080 KB |
testcase_20 | AC | 38 ms
14,080 KB |
testcase_21 | AC | 30 ms
5,376 KB |
testcase_22 | AC | 31 ms
5,376 KB |
testcase_23 | AC | 31 ms
5,376 KB |
ソースコード
//#pragma GCC optimize("Ofast") //#pragma GCC optimize("unroll-loops") //#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #include <bits/stdc++.h> using namespace std; using ll = long long; using ull = unsigned long long; using db = double; using ld = long double; template<typename T> using V = vector<T>; template<typename T> using VV = vector<vector<T>>; #define fs first #define sc second #define pb push_back #define mp make_pair #define mt make_tuple #define eb emplace_back #define lb lower_bound #define ub upper_bound #define all(v) (v).begin(),(v).end() #define siz(v) (ll)(v).size() #define rep(i,a,n) for(ll i=a;i<(ll)(n);++i) #define repr(i,a,n) for(ll i=n-1;(ll)a<=i;--i) #define ENDL '\n' typedef pair<int,int> Pi; typedef pair<ll,ll> PL; constexpr ll mod = 1000000007; // 998244353; constexpr ll INF = 1000000099; constexpr ll LINF = (ll)(1e18 +99); const ld PI = acos((ld)-1); const vector<ll> dx={-1,0,1,0},dy={0,1,0,-1}; template<typename T,typename U> inline bool chmin(T& t, const U& u){if(t>u){t=u;return 1;}return 0;} template<typename T,typename U> inline bool chmax(T& t, const U& u){if(t<u){t=u;return 1;}return 0;} template<typename T> inline T gcd(T a,T b){return b?gcd(b,a%b):a;} inline void yes() { cout << "Yes" << ENDL; } inline void no() { cout << "No" << ENDL; } template<typename T,typename Y> inline T mpow(T a, Y n) { T res = 1; for(;n;n>>=1) { if (n & 1) res = res * a; a = a * a; } return res; } template <typename T> V<T> prefix_sum(const V<T>& v) { int n = v.size(); V<T> ret(n + 1); rep(i, 0, n) ret[i + 1] = ret[i] + v[i]; return ret; } template<typename T> istream& operator >> (istream& is, vector<T>& vec){ for(auto&& x: vec) is >> x; return is; } template<typename T,typename Y> ostream& operator<<(ostream& os,const pair<T,Y>& p){ return os<<"{"<<p.fs<<","<<p.sc<<"}"; } template<typename T> ostream& operator<<(ostream& os,const V<T>& v){ os<<"{"; for(auto e:v)os<<e<<","; return os<<"}"; } template<typename ...Args> void debug(Args&... args){ for(auto const& x:{args...}){ cerr<<x<<' '; } cerr<<ENDL; } template <typename T> struct UnionFind { vector<T> Parent; UnionFind(T N) { Parent = vector<T>(N, -1); } T root(T A) { if(Parent[A] < 0) return A; return Parent[A] = root(Parent[A]); } T size(T A) { return -Parent[root(A)]; } bool connect(T A, T B) { A = root(A); B = root(B); if(A == B) return false; if(size(A) < size(B)) swap(A, B); Parent[A] += Parent[B]; Parent[B] = A; return true; } bool same(T A, T B) { return root(A) == root(B); } }; signed main(){ cin.tie(0);cerr.tie(0);ios::sync_with_stdio(false); cout<<fixed<<setprecision(20); ll n,a,b;cin>>n>>a>>b; UnionFind<ll> au(n),bu(n); rep(i,0,a){ int x,y;cin>>x>>y; --x;--y; au.connect(x,y); } rep(i,0,b){ int x,y;cin>>x>>y; --x;--y; bu.connect(x,y); } ll ans=0; V<set<int>> rcon(n,set<int>()); rep(i,0,n){ rcon[au.root(i)].emplace(bu.root(i)); } rep(i,0,n){ int aroot=au.root(i); if(aroot!=i)continue; for(auto&& j:rcon[aroot]){ int broot=bu.root(j); ans+=au.size(aroot)*bu.size(broot); } ans-=au.size(aroot); } cout<<ans<<ENDL; } //! ( . _ . ) ! //CHECK overflow,vector_size,what to output? //any other simpler approach? //list all conditions, try mathematical and graphic observation