oj.uz

Submission #204130

# Submission time Handle Problem Language Result Execution time Memory
204130 2020-02-24T13:42:39 Z cheetose Meetings (JOI19_meetings) C++17
29 / 100
 2000 ms 12792 KB 
#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a));
#define MEM_1(a) memset((a),-1,sizeof(a));
#define ALL(a) a.begin(),a.end()
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<ld> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 1000000007;
ll POW(ll a, ll b, ll MMM = MOD) { ll ret = 1; for (; b; b >>= 1, a = (a*a) % MMM)if (b & 1)ret = (ret*a) % MMM; return ret; }
ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
ll lcm(ll a, ll b) { if (a == 0 || b == 0)return a + b; return a*(b / gcd(a, b)); }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };
int ddx[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 };

#include "meetings.h"
#define kill kool
Vi v[2005];
int num[2005][2005];
void discon(int x, int y)
{
	int i=num[x][y];
	int z=v[x].back();
	int j=num[x][z];
	swap(v[x][i],v[x][j]);
	num[x][z]=i;
	num[x][y]=-1;
	v[x].pop_back();
	i=num[y][x];
	z=v[y].back();
	j=num[y][z];
	swap(v[y][i],v[y][j]);
	num[y][z]=i;
	num[y][x]=-1;
	v[y].pop_back();
}
void con(int x, int y)
{
	v[x].pb(y);
	num[x][y]=(int)v[x].size()-1;
	v[y].pb(x);
	num[y][x]=(int)v[y].size()-1;
}
 
bool chk[2005], kill[2005];
int sz[2005];
int getSz(int N, int pp)
{
	sz[N] = 1;
	for (int next : v[N])
	{
		if (next == pp || kill[next])continue;
		sz[N] += getSz(next, N);
	}
	return sz[N];
}
int get_centroid(int N, int pp, int cap)
{
	for (int next : v[N])
	{
		if (kill[next] || next == pp)continue;
		if (sz[next]>cap) return get_centroid(next, N, cap);
	}
	return N;
}
void Solve(int N)
{
	chk[0] = chk[1] = chk[2] = 1;
	int w = Query(0, 1, 2);
	if (w>2)
	{
		chk[w] = 1;
		con(0, w); con(1, w); con(2, w);
	}
	else
	{
		fup(i, 0, 2, 1)if (w != i)con(i, w);
	}
	fup(i, 3, N - 1, 1)
	{
		if (chk[i])continue;
		chk[i] = 1;
		MEM0(kill);
		int pr = 0;
		while (1)
		{
			int cap = getSz(pr, -1);
			int R = get_centroid(pr, -1, cap / 2);
			kill[R] = 1;
			Vi w;
			fup(j, 1, (int)v[R].size() - 1, 2)
			{
				int a = v[R][j - 1], b = v[R][j];
				int x = Query(a, i, b);
				if (x == i)
				{
					int T = Query(R, i, a);
					if (T == i)
					{
						discon(R, a);
						con(R, i); con(i, a);
					}
					else
					{
						discon(R, b);
						con(R, i); con(i, b);
					}
					goto FIN;
				}
				else w.pb(x);
			}
			if (!v[R].empty() && v[R].size() & 1)
			{
				int x = Query(R, i, v[R].back());
				if (x == i)
				{
					int B = v[R].back();
					discon(R, v[R].back());
					con(R, i); con(i, B);
					goto FIN;
				}
				else w.pb(x);
			}
			int t = -1;
			for (int x : w)if (x != R)t = x;
			if (t == -1)
			{
				con(R, i);
				goto FIN;
			}
			else
			{
				pr = t;
			}
		}
	FIN:;
	}
	fup(i, 0, N - 1, 1)
	{
		for (int x : v[i])
		{
			if (x>i)Bridge(i,x);
		}
	}
}/*
int main() {
	
}*/

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 504 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 552 KB Output is correct
4 Correct 5 ms 504 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 380 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 504 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 504 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 504 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 552 KB Output is correct
4 Correct 5 ms 504 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 380 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 504 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 504 KB Output is correct
14 Correct 5 ms 632 KB Output is correct
15 Correct 5 ms 632 KB Output is correct
16 Correct 5 ms 632 KB Output is correct
17 Correct 5 ms 632 KB Output is correct
18 Correct 5 ms 636 KB Output is correct
19 Correct 5 ms 632 KB Output is correct
20 Correct 5 ms 632 KB Output is correct
21 Correct 5 ms 632 KB Output is correct
22 Correct 5 ms 632 KB Output is correct
23 Correct 5 ms 632 KB Output is correct
24 Correct 5 ms 632 KB Output is correct
25 Correct 5 ms 632 KB Output is correct
26 Correct 6 ms 632 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 504 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 552 KB Output is correct
4 Correct 5 ms 504 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 380 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 504 KB Output is correct
11 Correct 5 ms 504 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 504 KB Output is correct
14 Correct 5 ms 632 KB Output is correct
15 Correct 5 ms 632 KB Output is correct
16 Correct 5 ms 632 KB Output is correct
17 Correct 5 ms 632 KB Output is correct
18 Correct 5 ms 636 KB Output is correct
19 Correct 5 ms 632 KB Output is correct
20 Correct 5 ms 632 KB Output is correct
21 Correct 5 ms 632 KB Output is correct
22 Correct 5 ms 632 KB Output is correct
23 Correct 5 ms 632 KB Output is correct
24 Correct 5 ms 632 KB Output is correct
25 Correct 5 ms 632 KB Output is correct
26 Correct 6 ms 632 KB Output is correct
27 Correct 17 ms 1784 KB Output is correct
28 Correct 15 ms 1656 KB Output is correct
29 Correct 16 ms 1656 KB Output is correct
30 Correct 15 ms 1784 KB Output is correct
31 Correct 12 ms 1784 KB Output is correct
32 Correct 17 ms 1784 KB Output is correct
33 Correct 18 ms 1656 KB Output is correct
34 Correct 19 ms 1656 KB Output is correct
35 Correct 19 ms 1656 KB Output is correct
36 Correct 15 ms 1784 KB Output is correct
37 Correct 14 ms 1784 KB Output is correct
38 Correct 14 ms 1944 KB Output is correct
39 Correct 14 ms 1656 KB Output is correct

Subtask #4
0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 1099 ms 12264 KB Output is correct
2 Correct 1185 ms 12280 KB Output is correct
3 Correct 996 ms 12532 KB Output is correct
4 Correct 1139 ms 12536 KB Output is correct
5 Correct 670 ms 12792 KB Output is correct
6 Correct 547 ms 11768 KB Output is correct
7 Correct 754 ms 9848 KB Output is correct
8 Correct 793 ms 9592 KB Output is correct
9 Correct 961 ms 9376 KB Output is correct
10 Correct 774 ms 9336 KB Output is correct
11 Correct 932 ms 9380 KB Output is correct
12 Correct 892 ms 12528 KB Output is correct
13 Correct 1256 ms 11000 KB Output is correct
14 Correct 1539 ms 9196 KB Output is correct
15 Correct 1658 ms 9304 KB Output is correct
16 Correct 1426 ms 9464 KB Output is correct
17 Correct 832 ms 9212 KB Output is correct
18 Execution timed out 2355 ms 8936 KB Time limit exceeded
19 Halted 0 ms 0 KB -