Submission #664554

#	Time	Username	Problem	Language	Result	Execution time	Memory
664554		blue	Ancient Machine (JOI21_ancient_machine)	C++17	Compilation error	0 ms	0 KiB

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 = 2;
	const int cbs = 2;

	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

Compilation message (stderr)

/usr/bin/ld: /tmp/cccURPoj.o: in function `main':
grader_bruno.cpp:(.text.startup+0x24d): undefined reference to `Bruno(int, int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status