結果
問題 | No.2674 k-Walk on Bipartite |
ユーザー | akiaa11 |
提出日時 | 2024-03-20 01:03:03 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 77 ms / 2,000 ms |
コード長 | 3,775 bytes |
コンパイル時間 | 3,790 ms |
コンパイル使用メモリ | 266,068 KB |
実行使用メモリ | 13,696 KB |
最終ジャッジ日時 | 2024-09-30 05:55:23 |
合計ジャッジ時間 | 5,717 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,248 KB |
testcase_03 | AC | 1 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 | 45 ms
11,776 KB |
testcase_08 | AC | 54 ms
10,112 KB |
testcase_09 | AC | 37 ms
11,904 KB |
testcase_10 | AC | 66 ms
11,460 KB |
testcase_11 | AC | 41 ms
9,856 KB |
testcase_12 | AC | 67 ms
10,368 KB |
testcase_13 | AC | 35 ms
10,752 KB |
testcase_14 | AC | 11 ms
8,136 KB |
testcase_15 | AC | 70 ms
12,160 KB |
testcase_16 | AC | 49 ms
12,404 KB |
testcase_17 | AC | 47 ms
9,728 KB |
testcase_18 | AC | 20 ms
8,704 KB |
testcase_19 | AC | 39 ms
11,392 KB |
testcase_20 | AC | 36 ms
11,648 KB |
testcase_21 | AC | 52 ms
10,624 KB |
testcase_22 | AC | 77 ms
13,696 KB |
testcase_23 | AC | 2 ms
5,248 KB |
testcase_24 | AC | 2 ms
5,248 KB |
testcase_25 | AC | 2 ms
5,248 KB |
testcase_26 | AC | 2 ms
5,248 KB |
testcase_27 | AC | 2 ms
5,248 KB |
testcase_28 | AC | 1 ms
5,248 KB |
testcase_29 | AC | 1 ms
5,248 KB |
testcase_30 | AC | 2 ms
5,248 KB |
testcase_31 | AC | 2 ms
5,248 KB |
testcase_32 | AC | 2 ms
5,248 KB |
testcase_33 | AC | 2 ms
5,248 KB |
testcase_34 | AC | 1 ms
5,248 KB |
testcase_35 | AC | 2 ms
5,248 KB |
testcase_36 | AC | 2 ms
5,248 KB |
testcase_37 | AC | 1 ms
5,248 KB |
testcase_38 | AC | 2 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> #define SELECTER(_1,_2,_3,SELECT,...) SELECT #define rep1(i,n) for(int i=0;i<(int)n;++i) #define rep2(i,a,n) for(int i=(int)a;i<(int)n;++i) #define rep(...) SELECTER(__VA_ARGS__,rep2,rep1)(__VA_ARGS__) #define RSELECTER(_1, _2, _3, RSELECT, ...) RSELECT #define rrep1(i,n) for(int i=(int)(n)-1;i>=0;--i) #define rrep2(i,a,n) for(int i=(int)(n)-1;i>=(int)a;--i) #define rrep(...) RSELECTER(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__) #define all(a) a.begin(),a.end() #define rall(a) a.rbegin(),a.rend() #define fi first #define se second #define PrintR LogOutput #ifdef _DEBUG #define Log(...) LogOutput(__VA_ARGS__) #else #define Log(...) #endif #define M_PI 3.14159265358979323846 using namespace std; using namespace atcoder; using ll=long long; using ld=long double; using pii=pair<int,int>; using pll=pair<long long,long long>; using pdd=pair<long double,long double>; using tp=tuple<int,int,int>; using tpll=tuple<ll,ll,ll>; using veci=vector<int>; using vecpii=vector<pair<int,int>>; using vecll=vector<long long>; using vecpll=vector<pair<long long,long long>>; using vecpdd=vector<pair<long double,long double>>; using vecs=vector<string>; using vecb=vector<bool>; using vecd=vector<long double>; using vectp=vector<tp>; using vectpll=vector<tpll>; using mint=modint998244353; using mint10=modint1000000007; template<typename T, typename S> istream& operator>>(istream& in, pair<T, S>& a){return in >> a.first >> a.second;} template<typename T, typename S> ostream& operator<<(ostream& out, const pair<T, S>& a){return out << a.first << ' ' << a.second;} ostream& operator<<(ostream& out, const mint& a){return out << a.val();} ostream& operator<<(ostream& out, const mint10& a){return out << a.val();} ostream& operator<<(ostream& out, const modint& a){return out << a.val();} template<typename T> ostream& operator<<(ostream& out, const vector<T>& d){for(int i = 0 ; i < d.size() ; ++i) out << d[i] << (i == d.size() - 1 ? "" : " "); return out;} template<typename T, typename S> pair<T, S> operator+(const pair<T, S>& a, const pair<T, S>& b){return {a.fi + b.fi, a.se + b.se};} template<typename T, typename S> pair<T, S> operator-(const pair<T, S>& a, const pair<T, S>& b){return {a.fi - b.fi, a.se - b.se};} template<class T> inline bool chmax(T& a,T b){if(a<b) {a=b;return true;} return false;} template<class T> inline bool chmin(T& a,T b){if(a>b) {a=b;return true;} return false;} bool Judge(int i, int j, int h, int w){return i < 0 || j < 0 || i >= h || j >= w;} bool PrintA(int i){cout<<(i ? "Yes" : "No")<<endl;return i;} constexpr ll INF=numeric_limits<ll>::max() >> 2; constexpr int inf=numeric_limits<int>::max() >> 1; constexpr ll MOD=998244353; const int vi[] = {0, 1, 0, -1}, vj[] = {1, 0, -1, 0}; template<typename... Args> void LogOutput(Args&&... args){ stringstream ss; ((ss << args << ' '), ...); cout << ss.str().substr(0, ss.str().length() - 1) << endl; } template<typename T> void LogOutput(vector<vector<T>>& data){for(auto d : data) LogOutput(d);} int main(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); int n, m;cin>>n>>m; int s, t, k;cin>>s>>t>>k; s--, t--; vector<veci> g(n); int p = 1; rep(i, m){ int u, v;cin>>u>>v; u--, v--; if(u == s || v == s) p = 0; g[u].push_back(v); g[v].push_back(u); } if(n == 1){ cout<<"No"<<endl; return 0; } veci dist(n, -1); queue<int> q; q.push(s); dist[s] = 0; while(q.size()){ int v = q.front(); q.pop(); for(int nv : g[v]) if(dist[nv] == -1){ dist[nv] = dist[v] + 1; q.push(nv); } } if(n == 2 && dist[s ^ 1] == -1) dist[s ^ 1] = (1 << 30) + 1; if(dist[t] != -1 && dist[t] % 2 != k % 2) cout<<"No"<<endl; else if(p || dist[t] == -1 || dist[t] > k) cout<<"Unknown"<<endl; else cout<<"Yes"<<endl; }