oj.uz

Submission #786370

# Submission time Handle Problem Language Result Execution time Memory
786370 2023-07-18T07:10:57 Z Evirir Newspapers (CEOI21_newspapers) C++17
4 / 100
 1 ms 340 KB 
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
//using namespace __gnu_pbds;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#define watch(x) cout<<(#x)<<"="<<(x)<<'\n'
#define mset(d,val) memset(d,val,sizeof(d))
#define cbug if(DEBUG) cout
#define setp(x) cout<<fixed<<setprecision(x)
#define sz(x) (int)(x).size()
#define all(x) begin(x), end(x)
#define forn(i,a,b) for(int i=(a);i<(b);i++)
#define fore(i,a,b) for(int i=(a);i<=(b);i++)
#define pb push_back
#define F first
#define S second
#define fbo find_by_order
#define ook order_of_key
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> ii;
typedef vector<ll> vi;
typedef vector<ii> vii;
//template<typename T>
//using pbds = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
void SD(int t=0){ cout<<"PASSED "<<t<<endl; }
ostream& operator<<(ostream &out, ii x){ out<<"("<<x.F<<","<<x.S<<")"; return out; }
template<typename T> void amax(T &a, T b){ a=max(a,b); }
template<typename T> void amin(T &a, T b){ a=min(a,b); }
struct Hash {
	static uint64_t splitmix64(uint64_t x) {
		// http://xorshift.di.unimi.it/splitmix64.c
		x += 0x9e3779b97f4a7c15;
		x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
		x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
		return x ^ (x >> 31);
	}
	size_t operator()(uint64_t x) const {
		static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
		return splitmix64(x + FIXED_RANDOM);
	}
};

const ll INF = ll(1e18);
const int MOD = 998244353;
const bool DEBUG = 0;
const int MAXN = 1005;
const int LG = 21;

int n,m;
vector<int> adj[MAXN];

void no()
{
	cout<<"NO\n";
}

int main()
{
	cin.tie(0)->sync_with_stdio(0);

	cin>>n>>m;
	forn(i,0,m)
	{
		int u,v; cin>>u>>v; u--; v--;
		adj[u].pb(v);
		adj[v].pb(u);
	}

	if (m != n - 1)
	{
		no();
		return 0;
	}

	// if (n == 1)
	// {
	// 	cout<<"YES\n";
	// 	cout<<1<<'\n';
	// 	cout<<1<<'\n';
	// 	return 0;
	// }

	// int rt = -1;
	// forn(i,0,n)
	// {
	// 	if (sz(adj[i]) == 1)
	// 	{
	// 		rt = i;
	// 		break;
	// 	}
	// }
	// assert(rt != -1);
	// rt = adj[rt][0];
	// if (sz(adj[rt]) != n - 1)
	// {
	// 	no();
	// 	return 0;
	// }

	cout << "YES\n";
	cout << 1 << '\n';
	cout << 1 << '\n';
	// cout << rt + 1 << ' ' << rt + 1 << '\n';

	return 0;
}

Subtask #1
0.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Partially correct 0 ms 340 KB Failed to provide a successful strategy.
3 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
4 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
7 Correct 0 ms 340 KB Output is correct
8 Partially correct 0 ms 340 KB Failed to provide a successful strategy.
9 Incorrect 0 ms 340 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #2
4.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
3 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
4 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 340 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 340 KB Failed to provide a successful strategy.
7 Partially correct 0 ms 340 KB Failed to provide a successful strategy.
8 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
9 Partially correct 1 ms 212 KB Failed to provide a successful strategy.
10 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
11 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
12 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
13 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
14 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
15 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
16 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
17 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
18 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
19 Partially correct 1 ms 340 KB Failed to provide a successful strategy.
20 Partially correct 1 ms 340 KB Failed to provide a successful strategy.

Subtask #3
0.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Partially correct 0 ms 340 KB Failed to provide a successful strategy.
3 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
4 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
5 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
6 Partially correct 0 ms 212 KB Failed to provide a successful strategy.
7 Correct 0 ms 340 KB Output is correct
8 Partially correct 0 ms 340 KB Failed to provide a successful strategy.
9 Incorrect 0 ms 340 KB Output isn't correct
10 Halted 0 ms 0 KB -