結果
問題 | No.2072 Anatomy |
ユーザー | |
提出日時 | 2022-09-16 22:37:41 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 131 ms / 2,000 ms |
コード長 | 5,053 bytes |
コンパイル時間 | 1,101 ms |
コンパイル使用メモリ | 112,640 KB |
実行使用メモリ | 8,832 KB |
最終ジャッジ日時 | 2024-12-21 21:55:09 |
合計ジャッジ時間 | 4,727 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 112 ms
7,936 KB |
testcase_09 | AC | 125 ms
8,320 KB |
testcase_10 | AC | 115 ms
7,552 KB |
testcase_11 | AC | 123 ms
8,064 KB |
testcase_12 | AC | 95 ms
7,040 KB |
testcase_13 | AC | 126 ms
8,576 KB |
testcase_14 | AC | 80 ms
6,528 KB |
testcase_15 | AC | 77 ms
6,528 KB |
testcase_16 | AC | 126 ms
8,576 KB |
testcase_17 | AC | 126 ms
8,448 KB |
testcase_18 | AC | 66 ms
6,144 KB |
testcase_19 | AC | 131 ms
8,704 KB |
testcase_20 | AC | 130 ms
8,704 KB |
testcase_21 | AC | 126 ms
8,704 KB |
testcase_22 | AC | 131 ms
8,704 KB |
testcase_23 | AC | 128 ms
8,832 KB |
testcase_24 | AC | 127 ms
8,704 KB |
testcase_25 | AC | 129 ms
8,704 KB |
testcase_26 | AC | 2 ms
5,248 KB |
testcase_27 | AC | 127 ms
8,704 KB |
testcase_28 | AC | 124 ms
8,832 KB |
コンパイルメッセージ
main.cpp: In function 'int main()': main.cpp:168:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions] 168 | auto [a,b] = m[i]; | ^
ソースコード
#include <cstdio> #include <cstdint> #include <cmath> #include <cstring> #include <iostream> #include <iomanip> #include <vector> #include <map> #include <unordered_map> #include <set> #include <unordered_set> #include <queue> #include <algorithm> #include <numeric> #include <cassert> using namespace std; namespace atcoder{};using namespace atcoder; using ull = uint64_t; using ll = int64_t; using vi = vector<int>; using vll = vector<ll>; using vs = vector<string>; using ld = long double; using P = pair<ll,ll>; using G = vector<vector<int>>; #ifdef MYDEBUG #define LO(...) fprintf(stderr, __VA_ARGS__) #define debug(x) cerr << "\033[33m(line:" << __LINE__ << ") " << #x << ": " << x << "\033[m" << endl #else #define LO(...) (void)0 #define debug(x) (void)0 #endif #define reps(i,a,n) for(ll i##_len = (ll)(n), i = (a); i < i##_len; ++i) #define rep(i,n) reps(i,0,n) #define rrep(i,n) reps(i,1,n+1) #define repd(i,n) for(ll i=n-1;i>=0;i--) #define rrepd(i,n) for(ll i=n;i>=1;i--) #define inp(i) ll i; cin >> i; #define inps(s) string s; cin >> s; #define inpp(p) cin >> (p).first >> (p).second; #define inpv(v,N) vll v(N);rep(i,N)cin>>v[i]; #define inpg(g,N,M) g.resize(N);rep(i,M){inp(a);inp(b);a--,b--;g[a].push_back(b);g[b].push_back(a);} #define all(v) begin(v),end(v) #define YESNO(bool) if(bool){cout<<"YES"<<endl;}else{cout<<"NO"<<endl;} #define yesno(bool) if(bool){cout<<"yes"<<endl;}else{cout<<"no"<<endl;} #define YesNo(bool) if(bool){cout<<"Yes"<<endl;}else{cout<<"No"<<endl;} #define YES cout<<"YES"<<endl #define NO cout<<"NO"<<endl #define yes cout<<"yes"<<endl #define no cout<<"no"<<endl #define Yes cout<<"Yes"<<endl #define No cout<<"No"<<endl #define SP cout << " "; #define ENDL cout << "\n"; #define outp(i) cout << (i); #define outps(i) cout << (i) << " "; #define outpl(i) cout << (i) << "\n"; #define setfp() cout << fixed << setprecision(16) template<typename C> void outpv(C &v){for(auto &&e:v){cout << e;if(&e != &v.back()) cout << ' ';}cout << "\n";} template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } inline ll lg(ll __n) { return sizeof(ll) * __CHAR_BIT__ - 1 - __builtin_clzl(__n); } int dx[4]={1,0,-1,0}; int dy[4]={0,1,0,-1}; #ifndef ATCODER_DSU_HPP #define ATCODER_DSU_HPP 1 #include <algorithm> #include <cassert> #include <vector> namespace atcoder { // Implement (union by size) + (path compression) // Reference: // Zvi Galil and Giuseppe F. Italiano, // Data structures and algorithms for disjoint set union problems struct dsu { public: dsu() : _n(0) {} explicit dsu(int n) : _n(n), parent_or_size(n, -1) {} int merge(int a, int b) { assert(0 <= a && a < _n); assert(0 <= b && b < _n); int x = leader(a), y = leader(b); if (x == y) return x; if (-parent_or_size[x] < -parent_or_size[y]) std::swap(x, y); parent_or_size[x] += parent_or_size[y]; parent_or_size[y] = x; return x; } bool same(int a, int b) { assert(0 <= a && a < _n); assert(0 <= b && b < _n); return leader(a) == leader(b); } int leader(int a) { assert(0 <= a && a < _n); if (parent_or_size[a] < 0) return a; return parent_or_size[a] = leader(parent_or_size[a]); } int size(int a) { assert(0 <= a && a < _n); return -parent_or_size[leader(a)]; } std::vector<std::vector<int>> groups() { std::vector<int> leader_buf(_n), group_size(_n); for (int i = 0; i < _n; i++) { leader_buf[i] = leader(i); group_size[leader_buf[i]]++; } std::vector<std::vector<int>> result(_n); for (int i = 0; i < _n; i++) { result[i].reserve(group_size[i]); } for (int i = 0; i < _n; i++) { result[leader_buf[i]].push_back(i); } result.erase( std::remove_if(result.begin(), result.end(), [&](const std::vector<int>& v) { return v.empty(); }), result.end()); return result; } private: int _n; // root node: -1 * component size // otherwise: parent std::vector<int> parent_or_size; }; } // namespace atcoder #endif // ATCODER_DSU_HPP vector<P> m; int main(){ inp(N); inp(M); dsu d(N); m.resize(M); rep(i,M){ inp(a);inp(b); a--,b--; m[i] = {a,b}; } ll c = 0; vll ff(N); repd(i,M){ auto [a,b] = m[i]; LO("i=%ld, %ld %ld\n",i,a,b); ll p = ff[d.leader(a)]; ll q = ff[d.leader(b)]; if(d.same(m[i].first, m[i].second)){ c++; LO("same: %ld==%ld max:%ld\n", a,b,max(p,q)); ff[d.leader(a)]++; }else{ d.merge(m[i].first, m[i].second); LO("merge: %ld<>%ld max:%ld\n", a,b,max(p,q)); ff[d.leader(a)] = max(p,q)+1; } } outpl(ff[d.leader(0)]); return 0; }