Submission #664725

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
664725	2022-11-27T08:21:17 Z	blue	Ancient Machine (JOI21_ancient_machine)	C++17	100 / 100	210 ms	8688 KB

Anna

#include "Anna.h"
#include <bits/stdc++.h>
 
namespace
{
	using namespace std;
	
	using vi = vector<int>;
	using pii = pair<int, int>;
	using vpii = vector<pii>;
	using ll = long long;
	using vll = vector<ll>;
	#define sz(x) int(x.size())
 
	const int obs = 76;
	const int cbs = 53;
 
	vi encode(vi A)
	{
		while(sz(A) % obs != 0)
			A.push_back(0);
 
		// cerr << "to encode: ";
		// for(int u = 0; u < sz(A); u++)
		// 	cerr << A[u];
		// cerr << '\n';
 
 
		ll pow2[cbs];
		pow2[0] = 1;
		for(int i = 1; i < cbs; i++)
			pow2[i] = pow2[i-1] * 2LL;
 
 
		ll dp[1 + obs][2];
 
		dp[1][0] = 1;
		dp[1][1] = 1;
 
		for(int i = 2; i <= obs; i++)
		{
			dp[i][0] = dp[i-1][0] + dp[i-1][1];
			dp[i][1] = dp[i-1][0];
		}
 
 
		// cerr << "dp values: \n";
		// for(int i = 1; i <= obs; i++)
		// 	cerr << dp[i][0] << ' ' << dp[i][1] << '\n';
 
		vi res;
 
 
		for(int i = 0; i < sz(A); i += obs)
		{
			// cerr << "i = " << i << '\n';
			vi a;
			ll val = 0;
			for(int j = i; j < i + obs; j++)
			{
				a.push_back(A[j]);
			}
 
 
			for(int j = 0; j < obs; j++)
			{
				if(a[j] == 1)
				{
					val += dp[obs - j][0];
					// cerr << "add dp 0 " << obs - j << " : " << dp[obs - j][0] << '\n';
					j++;
				}
			}
 
			for(int h : a)
			{
				cerr << h;
			}
 
			// cerr << " -> ";
 
 
			// cerr << "sending val = " << val << '\n';
 
			for(int j = 0; j < cbs; j++)
				res.push_back(bool(val & pow2[j]));
		}
 
		// cerr << "res = ";
		// for(int y : res)
		// 	cerr << y;
		// cerr << '\n';
 
 
 
 
 
		return res;
	}	
}
 
 
 
void Anna(int N, vector<char> S)
{
	// cerr << "hello\n";
	int fx = 0;
	int lz = N-1;
 
	while(fx < N && S[fx] != 'X')
		fx++;
 
	while(lz >= 0 && S[lz] != 'Z')
		lz--;
 
	if(fx == N || lz == -1 || fx >= lz)
	{
		// cerr << "hello2\n";
		return;
	}
 
	vi tosend(N+1, 0);
 
	tosend[fx] = 1;
	tosend[lz+1] = 1;
 
	for(int i = fx+2; i <= lz-1; i++)
	{
		if(S[i-1] == 'Z' && S[i] == 'Y')
			tosend[i] = 1;
	}
 
	for(int i = 0; i+1 < sz(tosend); i++)
		assert(!(tosend[i] == 1 && tosend[i+1] == 1));
 
	// for(int i = 0; i <= N; i++)
	// 	cerr << tosend[i];
	// cerr << '\n';
 
	tosend = encode(tosend);
 
	for(int f : tosend)
		Send(f);
}

Bruno

#include "Bruno.h"
#include <bits/stdc++.h>
 
namespace
{
	using namespace std;
 
	using vi = vector<int>;
	using pii = pair<int, int>;
	using vpii = vector<pii>;
	using ll = long long;
	using vll = vector<ll>;
	#define sz(x) int(x.size())
 
 
	const int obs = 76;
	const int cbs = 53;
 
 
	vi decode(vi A, int S) //S = size of decoded sequence
	{
		// cerr << "\n\n\n decoding\n";
		assert(sz(A) % cbs == 0);
 
		vi res;
		
		for(int i = 0; i < sz(A); i += cbs)
		{
			vll a;
			for(int j = i; j < i+cbs; j++)
				a.push_back(A[j]);
 
 
			ll pow2[cbs];
			pow2[0] = 1;
			for(int i = 1; i < cbs; i++)
				pow2[i] = pow2[i-1] * 2LL;
 
 
			ll val = 0;
			for(int j = 0; j < cbs; j++)
				val += pow2[j] * a[j];
 
			// cerr << "val = " << val << '\n';
 
 
			ll dp[1 + obs][2];
 
			dp[1][0] = 1;
			dp[1][1] = 1;
 
			for(int i = 2; i <= obs; i++)
			{
				dp[i][0] = dp[i-1][0] + dp[i-1][1];
				dp[i][1] = dp[i-1][0];
			}
 
		// 	cerr << "dp values: \n";
		// for(int i = 1; i <= obs; i++)
		// 	cerr << dp[i][0] << ' ' << dp[i][1] << '\n';
 
			vi cres;
 
 
			for(int j = 0; j < obs; j++)
			{
				if(dp[obs - j][0] > val)
					cres.push_back(0);
				else
				{
					val -= dp[obs - j][0];
					cres.push_back(1);
					if(j != obs - 1)
						cres.push_back(0);
					j++;
				}
			}
 
			// cerr << "cres = ";
			// for(int c : cres)
			// 	cerr << c;
			// cerr << "\n";
 
			for(int c : cres)
				res.push_back(c);
 
			assert(val == 0);
		}
 
 
		// cerr << "decoded : ";
		// for(int r : res)
		// 	cerr << r;
		// cerr << '\n';
 
		while(sz(res) > S)
			res.pop_back();
 
		// cerr << "after resizing : ";
		// for(int r : res)
		// 	cerr << r;
		// cerr << '\n';
 
 
		return res;
	}
}
 
 
void Bruno(int N, int L, vi A)
{
 
	if(A.empty())
	{
		for(int i = 0; i < N; i++)
			Remove(i);
 
		return;
	}
 
	A = decode(A, N+1);
 
	assert(sz(A) == N+1);
 
	int lz = N;
	while(A[lz] != 1)
		lz--;
	lz--;
 
	int fx = 0;
	while(A[fx] != 1)
		fx++;
 
	// cerr << fx << ' ' << lz << '\n';
 
	while(!(0 <= fx && fx < lz && lz < N));
 
	for(int i = 0; i < fx; i++)
		Remove(i);
	for(int i = lz+1; i < N; i++)
		Remove(i);
 
	vi st;
 
	for(int i = fx+1; i <= lz; i++)
	{
		if(i < lz && A[i+1] == 0)
		{
			// cerr << "add " << i << " to stack\n";
			st.push_back(i);
		}
		else
		{
			while(!st.empty())
			{
				Remove(st.back());
				// cerr << "pop " << st.back() << '\n';
				st.pop_back();
			}
			Remove(i);
			// cerr << "remove Z : " << i << '\n';
		}
	}
 
	Remove(fx);
	// cerr << "final remove " << fx << '\n';
}

Subtask #1

5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	504 KB	Output is correct
2	Correct	0 ms	516 KB	Output is correct
3	Correct	1 ms	520 KB	Output is correct
4	Correct	0 ms	508 KB	Output is correct
5	Correct	1 ms	512 KB	Output is correct
6	Correct	1 ms	516 KB	Output is correct
7	Correct	1 ms	508 KB	Output is correct
8	Correct	0 ms	508 KB	Output is correct
9	Correct	0 ms	508 KB	Output is correct
10	Correct	1 ms	516 KB	Output is correct
11	Correct	1 ms	516 KB	Output is correct

Subtask #2

95.0 / 95.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	173 ms	8400 KB	Output is correct
2	Correct	184 ms	8460 KB	Output is correct
3	Correct	174 ms	8432 KB	Output is correct
4	Correct	175 ms	8412 KB	Output is correct
5	Correct	170 ms	8388 KB	Output is correct
6	Correct	168 ms	8652 KB	Output is correct
7	Correct	166 ms	8384 KB	Output is correct
8	Correct	178 ms	8440 KB	Output is correct
9	Correct	172 ms	8400 KB	Output is correct
10	Correct	174 ms	8456 KB	Output is correct
11	Correct	177 ms	8352 KB	Output is correct
12	Correct	176 ms	8380 KB	Output is correct
13	Correct	185 ms	8636 KB	Output is correct
14	Correct	203 ms	8516 KB	Output is correct
15	Correct	182 ms	8688 KB	Output is correct
16	Correct	210 ms	8532 KB	Output is correct
17	Correct	53 ms	6416 KB	Output is correct
18	Correct	48 ms	6356 KB	Output is correct
19	Correct	48 ms	6476 KB	Output is correct
20	Correct	195 ms	8444 KB	Output is correct
21	Correct	188 ms	8376 KB	Output is correct
22	Correct	190 ms	8636 KB	Output is correct
23	Correct	190 ms	8356 KB	Output is correct
24	Correct	202 ms	8432 KB	Output is correct
25	Correct	54 ms	6364 KB	Output is correct
26	Correct	53 ms	6300 KB	Output is correct
27	Correct	48 ms	6380 KB	Output is correct
28	Correct	47 ms	6392 KB	Output is correct
29	Correct	53 ms	6252 KB	Output is correct
30	Correct	46 ms	6356 KB	Output is correct
31	Correct	49 ms	6372 KB	Output is correct
32	Correct	186 ms	8488 KB	Output is correct
33	Correct	179 ms	8504 KB	Output is correct