Submission #1176908
Source Code Expand
#include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<math.h> #include<string> #include<string.h> #include<stack> #include<queue> #include<vector> #include<utility> #include<set> #include<map> #include<stdlib.h> #include<iomanip> using namespace std; #define ll long long #define ld long double #define EPS 0.0000000001 #define INF 1e9 #define MOD 1000000007 #define rep(i,n) for(i=0;i<n;i++) #define loop(i,a,n) for(i=a;i<n;i++) #define all(in) in.begin(),in.end() #define shosu(x) fixed<<setprecision(x) typedef vector<int> vi; typedef pair<int,int> pii; #define MAX_N 100000 int parent[MAX_N]; int ran[MAX_N]; void init(int n) { int i; rep(i,n){ parent[i]=i; ran[i]=0; } } int find(int x) { if(parent[x]==x) return x; else return parent[x]=find(parent[x]); } void unite(int x,int y) { x=find(x); y=find(y); if(x==y)return; if(ran[x]<ran[y]) parent[x]=y; else{ parent[y]=x; if(ran[x]==ran[y])ran[x]++; } } vi lan[100005]; int main() { int i,j; int n,m; cin>>n>>m; // vi lan(m); rep(i,n){ int k,l; cin>>k; rep(j,k){ cin>>l; l--;//0indexed lan[l].push_back(i);//0indexed } } init(n); rep(i,m){ rep(j,lan[i].size()) unite(lan[i][0],lan[i][j]); } bool ans=true; rep(i,n){ if(find(parent[0])!=find(parent[i])) ans=false; } if(ans)cout<<"YES"<<endl; else cout<<"NO"<<endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Interpretation |
User | rika0384 |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 1629 Byte |
Status | AC |
Exec Time | 59 ms |
Memory | 4736 KB |
Judge Result
Set Name | sample | dataset1 | dataset2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | 200 / 200 | ||||||
Status |
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Set Name | Test Cases |
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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 | 2 ms | 2560 KB |
01-02.txt | AC | 3 ms | 2560 KB |
01-03.txt | AC | 3 ms | 2560 KB |
01-04.txt | AC | 3 ms | 2560 KB |
01-05.txt | AC | 3 ms | 2560 KB |
01-06.txt | AC | 3 ms | 2560 KB |
01-07.txt | AC | 3 ms | 2560 KB |
01-08.txt | AC | 3 ms | 2560 KB |
01-09.txt | AC | 3 ms | 2560 KB |
01-10.txt | AC | 3 ms | 2560 KB |
02-01.txt | AC | 47 ms | 4608 KB |
02-02.txt | AC | 49 ms | 3968 KB |
02-03.txt | AC | 48 ms | 4096 KB |
02-04.txt | AC | 59 ms | 4352 KB |
02-05.txt | AC | 54 ms | 3968 KB |
02-06.txt | AC | 59 ms | 4352 KB |
02-07.txt | AC | 55 ms | 4096 KB |
02-08.txt | AC | 39 ms | 3940 KB |
02-09.txt | AC | 58 ms | 3832 KB |
02-10.txt | AC | 50 ms | 4732 KB |
02-11.txt | AC | 50 ms | 4732 KB |
02-12.txt | AC | 49 ms | 4736 KB |
02-13.txt | AC | 51 ms | 4608 KB |
sample-01.txt | AC | 2 ms | 2560 KB |
sample-02.txt | AC | 2 ms | 2560 KB |