oj.uz

Submission #682522

# Submission time Handle Problem Language Result Execution time Memory
682522 2023-01-16T12:30:12 Z thegamercoder19 Easter Eggs (info1cup17_eastereggs) C++14
100 / 100
 24 ms 472 KB 
/*
Coded by thegamercoder19
GL
*/
#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
#include "grader.h"
#define M_PI       3.14159265358979323846
#define FILER 0
using ll = long long;
using ull = unsigned long long;
using ld = long double;
const ll MOD = pow(10, 9) + 7;
const ll INFL = 0x3f3f3f3f3f3f3f3f;
const ull INFUL = 0x3f3f3f3f3f3f3f3f;
const ll INFT = 0x3f3f3f3f;
const ull MAX = 1LL << 24;
const ll MODD = 998244353;
const double EPS = 1e-10;
#define V vector
#define pll pair<ll, ll>
#define pull2 pair<ull,ull>
#define MS multiset
#define M map
#define Q queue
#define PQ priority_queue
#define IOF ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define FOR(typ,i,a,b,c) for(typ i = a; i < b; i += c)
#define FORR(typ,i,a,b,c) for(typ i = a; i > b; i -= c)
#define FORA(a,i) for(auto &i : a)
#define all(v) v.begin(),v.end()
#define sz(v) v.size()
#define sorta(a) sort(all(a))
#define sortd(a) sort(all(a), greater<ll>())
#define setp(x) setprecision(x)<<fixed
#define RET return
#define log(a,b) log(b)/log(a)
#define WH(s) while(s)
#define WHI(t) WH(t--)
#define YES cout<<"YES"<<endl;
#define NO cout<<"NO"<<endl;
#define Yes cout<<"Yes"<<endl;
#define No cout<<"No"<<endl;
#define YESNO(s) cout << (s ? "YES" : "NO") << endl;
#define YesNo(s) cout<<(s?"Yes":"No")<<endl;
#define TYP 0
using namespace std;
ll l, r, m, ans;
V<V<ll>> g;
V<ll> orr;
V<bool> used;
void dfs(ll u)
{
	orr.push_back(u);
	used[u] = 1;
	FORA(g[u], v)if (!used[v])dfs(v);
}
int findEgg (int N, vector < pair < int, int > > bridges)
{
	l = 0, r = N - 1;
	V<V<ll>>().swap(g); V<ll>().swap(orr); V<bool>().swap(used);

	g.resize(N + 1); used.resize(N + 1);
	FORA(bridges, u)g[u.first].push_back(u.second), g[u.second].push_back(u.first);
	dfs(1);
	WH(l < r)
	{
		m = (l + r + 1) >> 1;
		if (query(V<int>(orr.begin(), orr.begin() + m)))r = m - 1;
		else  l = m;
	}
	return orr[l];
}

Subtask #1
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Number of queries: 4
2 Correct 1 ms 208 KB Number of queries: 4
3 Correct 1 ms 208 KB Number of queries: 4
4 Correct 1 ms 208 KB Number of queries: 4

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 332 KB Number of queries: 8
2 Correct 13 ms 336 KB Number of queries: 9
3 Correct 16 ms 336 KB Number of queries: 9
4 Correct 19 ms 352 KB Number of queries: 9

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 472 KB Number of queries: 9
2 Correct 21 ms 352 KB Number of queries: 9
3 Correct 18 ms 352 KB Number of queries: 9
4 Correct 16 ms 356 KB Number of queries: 9