結果
問題 | No.1023 Cyclic Tour |
ユーザー | fiord |
提出日時 | 2020-04-12 23:02:35 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 169 ms / 2,000 ms |
コード長 | 4,305 bytes |
コンパイル時間 | 1,571 ms |
コンパイル使用メモリ | 150,704 KB |
実行使用メモリ | 10,704 KB |
最終ジャッジ日時 | 2024-09-22 13:28:58 |
合計ジャッジ時間 | 10,653 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 | 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 | 72 ms
5,376 KB |
testcase_05 | AC | 72 ms
5,376 KB |
testcase_06 | AC | 76 ms
5,376 KB |
testcase_07 | AC | 74 ms
5,376 KB |
testcase_08 | AC | 89 ms
8,436 KB |
testcase_09 | AC | 85 ms
8,112 KB |
testcase_10 | AC | 83 ms
8,260 KB |
testcase_11 | AC | 92 ms
8,636 KB |
testcase_12 | AC | 91 ms
9,416 KB |
testcase_13 | AC | 85 ms
8,884 KB |
testcase_14 | AC | 85 ms
8,876 KB |
testcase_15 | AC | 88 ms
9,140 KB |
testcase_16 | AC | 158 ms
10,496 KB |
testcase_17 | AC | 162 ms
10,704 KB |
testcase_18 | AC | 166 ms
10,288 KB |
testcase_19 | AC | 157 ms
10,032 KB |
testcase_20 | AC | 149 ms
7,744 KB |
testcase_21 | AC | 151 ms
7,884 KB |
testcase_22 | AC | 152 ms
8,436 KB |
testcase_23 | AC | 160 ms
8,652 KB |
testcase_24 | AC | 167 ms
9,936 KB |
testcase_25 | AC | 147 ms
7,620 KB |
testcase_26 | AC | 150 ms
7,612 KB |
testcase_27 | AC | 147 ms
7,340 KB |
testcase_28 | AC | 168 ms
9,660 KB |
testcase_29 | AC | 166 ms
10,044 KB |
testcase_30 | AC | 169 ms
9,680 KB |
testcase_31 | AC | 155 ms
9,168 KB |
testcase_32 | AC | 162 ms
9,652 KB |
testcase_33 | AC | 169 ms
9,552 KB |
testcase_34 | AC | 56 ms
5,376 KB |
testcase_35 | AC | 127 ms
5,376 KB |
testcase_36 | AC | 151 ms
8,000 KB |
testcase_37 | AC | 154 ms
8,840 KB |
testcase_38 | AC | 159 ms
9,652 KB |
testcase_39 | AC | 161 ms
8,764 KB |
testcase_40 | AC | 160 ms
8,764 KB |
testcase_41 | AC | 161 ms
8,768 KB |
testcase_42 | AC | 150 ms
7,628 KB |
testcase_43 | AC | 156 ms
9,656 KB |
testcase_44 | AC | 77 ms
6,272 KB |
testcase_45 | AC | 93 ms
10,320 KB |
testcase_46 | AC | 90 ms
10,188 KB |
testcase_47 | AC | 77 ms
6,944 KB |
testcase_48 | AC | 154 ms
8,272 KB |
testcase_49 | AC | 154 ms
8,276 KB |
testcase_50 | AC | 151 ms
8,912 KB |
testcase_51 | AC | 150 ms
8,528 KB |
testcase_52 | AC | 156 ms
8,148 KB |
ソースコード
#define _CRT_SECURE_NO_WARNINGS #define _USE_MATH_DEFINES #include <iostream> #include <fstream> #include <cstdio> #include <cmath> #include <cstdlib> #include <cstring> #include <cassert> #include <string> #include <vector> #include <utility> #include <complex> #include <set> #include <map> #include <unordered_map> #include <queue> #include <stack> #include <deque> #include <tuple> #include <bitset> #include <limits> #include <algorithm> #include <array> #include <random> #include <complex> #include <regex> using namespace std; typedef long double ld; typedef long long ll; typedef vector<int> vint; typedef vector<ll> vll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef pair<double, double> pdd; typedef complex<ld> compd; #define quickIO() {cin.tie(0); cout.sync_with_stdio(false);} #define reach(i,a) for(auto i:a) #define rep(i,n) for(int i=0;i<((int)n);i++) #define REP(i,n) for(int i=0;i<=((int)n);i++) #define srep(i,a,n) for(int i=a;i<((int)n);i++) #define SREP(i,a,n) for(int i=a;i<=((int)n);i++) #define rrep(i,n) for(int i=n-1;i>=0;i--) #define RREP(i,n) for(int i=n;i>=0;i--) #define all(a) (a).begin(),(a).end() #define mp(a,b) make_pair(a,b) #define mt make_tuple #define pb push_back template<typename T> istream& operator >> (istream& is, vector<T>& vec) { for (T& x : vec) is >> x; return is; } template<typename T> ostream& operator << (ostream& os, vector<T>& vec) { os << "["; rep(i, vec.size()) os << (i ? ", " : "") << vec[i]; os << "]"; return os; } template<typename T> istream& operator >> (istream& is, pair<T, T>& p) { is >> p.first >> p.second; return is; } template<typename T> ostream& operator << (ostream& os, pair<T, T>& p) { os << p.first << " " << p.second; return os; } template<typename T> bool operator < (vector<T>& a, vector<T>& b) { rep(i, a.size()) { if (i == b.size()) return false; if (a[i] < b[i]) return true; else if (a[i] > b[i]) return false; } return false; } template<typename T> bool operator > (vector<T>& a, vector<T>& b) { rep(i, a.size()) { if (i == b.size()) return true; if (a[i] < b[i]) return false; else if (a[i] > b[i]) return true; } return false; } int bitcnt(ll x) { x = ((x & 0xAAAAAAAAAAAAAAAA) >> 1) + (x & 0x5555555555555555); x = ((x & 0xCCCCCCCCCCCCCCCC) >> 2) + (x & 0x3333333333333333); x = ((x & 0xF0F0F0F0F0F0F0F0) >> 4) + (x & 0x0F0F0F0F0F0F0F0F); x = ((x & 0xFF00FF00FF00FF00) >> 8) + (x & 0x00FF00FF00FF00FF); x = ((x & 0xFFFF0000FFFF0000) >> 16) + (x & 0x0000FFFF0000FFFF); x = ((x & 0xFFFFFFFF00000000) >> 32) + (x & 0x00000000FFFFFFFF); return x; } int bitcnt(int x) { x = ((x & 0xAAAAAAAA) >> 1) + (x & 0x55555555); x = ((x & 0xCCCCCCCC) >> 2) + (x & 0x33333333); x = ((x & 0xF0F0F0F0) >> 4) + (x & 0x0F0F0F0F); x = ((x & 0xFF00FF00) >> 8) + (x & 0x00FF00FF); x = ((x & 0xFFFF0000) >> 16) + (x & 0x0000FFFF); return x; } ll sqrtll(ll x) { ll left = 0, right = x; rep(i, 100) { ll mid = (left + right) >> 1; if (mid * mid <= x) left = mid; else right = mid; } return left; } ll gcd(ll a, ll b) { return b == 0 ? a : gcd(b, a % b); } #define debug(x) printf("Case #%d: ", x) #undef DEBUG const ld infl = 1e100; const ll mod = 998244353; const ld eps = 1e-9; const ll inf = 1e15; const int dx[] = { 1,0,-1,0,1, -1 }; const int dy[] = { 0,1,0,-1,1, -1 }; int group[100000]; int parent(int i) { return group[i] = (group[i] == i ? i : parent(group[i])); } void merge(int i, int j) { i = parent(i); j = parent(j); group[i] = j; } int main() { int n, m; cin >> n >> m; vector<pii> d_edge; rep(i, n) group[i] = i; rep(i, m) { int a, b, c; cin >> a >> b >> c; a--; b--; if (c == 1) { if (parent(a) == parent(b)) { cout << "Yes" << endl; return 0; } else merge(a, b); } else d_edge.push_back(mp(a, b)); } vint deg(n); vector<vint> edge(n); for (auto e : d_edge) { edge[parent(e.first)].push_back(parent(e.second)); } rep(i, n) { for (int to : edge[i]) { deg[to]++; } } queue<int> q; int cnt = 0; rep(i, n) { if (i == parent(i)) { cnt++; if (deg[i] == 0) { q.push(i); cnt--; } } } while (!q.empty()) { int it = q.front(); q.pop(); for (int to : edge[it]) { if (--deg[to] == 0) { q.push(to); cnt--; } } } cout << (cnt ? "Yes" : "No") << endl; return 0; }