Submission #3631472
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
//#include <boost/multiprecision/cpp_int.hpp>
// using namespace boost::multiprecision;
// using cint = cpp_int;
// Define
using ll = long long;
using ull = unsigned long long;
using ld = long double;
const ll MOD = 1e9 + 7;
const ll INF = LONG_MAX;
const ull MAX = ULONG_MAX;
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define x first
#define y second
#define endl '\n'
#define space ' '
#define def inline auto
#define func inline constexpr ll
#define run __attribute__((constructor)) def _
#define all(v) begin(v), end(v)
#define input(a) scanf("%lld", &(a))
#define print(a) printf("%lld\n", (a))
// Debug
#define debug(...) \
{ \
cerr << __LINE__ << ": " << #__VA_ARGS__ << " = "; \
for (auto &&X : {__VA_ARGS__}) cerr << "[" << X << "] "; \
cerr << endl; \
}
#define dump(a, h, w) \
rep(i, h) { \
rep(j, w) cerr << a[i][j] << space; \
cerr << endl; \
}
#define lldump(a, n) dump(vector<vector<ll>>{a}, 1, n)
// Loop
#define inc(i, a, n) for (ll i = (a), _##i = (n); i <= _##i; ++i)
#define dec(i, a, n) for (ll i = (a), _##i = (n); i >= _##i; --i)
#define each(i, a) for (auto &&i : a)
#define rep(i, n) inc(i, 0, n - 1)
#define loop() for (;;)
// Stream
#define fout(n) cout << fixed << setprecision(n)
#define fasten cin.tie(0), ios::sync_with_stdio(0)
// Speed
run() { fasten, fout(10); }
#pragma GCC optimize("O3")
#pragma GCC optimization_level 3
#pragma GCC target("avx")
// Math
func gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
func lcm(ll a, ll b) { return a * b / gcd(a, b); }
func sign(ll a) { return a ? abs(a) / a : 0; }
def in() {
ll A;
cin >> A;
return A;
}
struct UFT {
vector<ll> parent;
UFT(ll N) : parent(N) { rep(i, N) parent[i] = i; }
def root(ll x) {
if (parent[x] == x)
return x;
else
return parent[x] = root(parent[x]);
}
def unite(ll x, ll y) {
ll root_x = root(x), root_y = root(y);
if (root_x != root_y) {
if (root_x > root_y) swap(root_x, root_y);
parent[root_x] = root_y;
}
}
def same(ll x, ll y) { return root(x) == root(y); }
};
ll N, M;
vector<ll> K;
vector<vector<ll>> Language;
signed main() {
cin >> N >> M;
UFT uf(N);
rep(i, M) Language.pb({});
rep(i, N) {
K.pb(in());
rep(j, K[i]) Language[in() - 1].pb(i);
}
rep(i, M) {
rep(j, Language[i].size() - 1)
uf.unite(Language[i][j], Language[i][j + 1]);
}
rep(i, N - 1) if (!uf.same(i, i + 1)) return puts("NO") & 0;
return puts("YES") & 0;
}
// for compilation: g++ -Ofast -march=native -o _ _.cpp -std=c++17
Submission Info
Submission Time |
|
Task |
C - Interpretation |
User |
Shuzaei |
Language |
C++14 (GCC 5.4.1) |
Score |
400 |
Code Size |
3289 Byte |
Status |
AC |
Exec Time |
30 ms |
Memory |
7280 KB |
Judge Result
Set Name |
sample |
dataset1 |
dataset2 |
Score / Max Score |
0 / 0 |
200 / 200 |
200 / 200 |
Status |
|
|
|
Set Name |
Test Cases |
sample |
sample-01.txt, sample-02.txt |
dataset1 |
sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt |
dataset2 |
sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 02-01.txt, 02-02.txt, 02-03.txt, 02-04.txt, 02-05.txt, 02-06.txt, 02-07.txt, 02-08.txt, 02-09.txt, 02-10.txt, 02-11.txt, 02-12.txt, 02-13.txt, sample-01.txt, sample-02.txt |
Case Name |
Status |
Exec Time |
Memory |
01-01.txt |
AC |
1 ms |
256 KB |
01-02.txt |
AC |
2 ms |
256 KB |
01-03.txt |
AC |
2 ms |
384 KB |
01-04.txt |
AC |
2 ms |
256 KB |
01-05.txt |
AC |
2 ms |
256 KB |
01-06.txt |
AC |
2 ms |
384 KB |
01-07.txt |
AC |
2 ms |
256 KB |
01-08.txt |
AC |
2 ms |
384 KB |
01-09.txt |
AC |
2 ms |
256 KB |
01-10.txt |
AC |
2 ms |
384 KB |
02-01.txt |
AC |
24 ms |
4848 KB |
02-02.txt |
AC |
19 ms |
3064 KB |
02-03.txt |
AC |
22 ms |
3316 KB |
02-04.txt |
AC |
29 ms |
5488 KB |
02-05.txt |
AC |
23 ms |
3320 KB |
02-06.txt |
AC |
30 ms |
5232 KB |
02-07.txt |
AC |
24 ms |
3320 KB |
02-08.txt |
AC |
19 ms |
3308 KB |
02-09.txt |
AC |
22 ms |
7280 KB |
02-10.txt |
AC |
18 ms |
5108 KB |
02-11.txt |
AC |
18 ms |
5108 KB |
02-12.txt |
AC |
20 ms |
4212 KB |
02-13.txt |
AC |
20 ms |
4212 KB |
sample-01.txt |
AC |
1 ms |
256 KB |
sample-02.txt |
AC |
1 ms |
256 KB |