oj.uz

Submission #931183

# Submission time Handle Problem Language Result Execution time Memory
931183 2024-02-21T10:54:06 Z boris_mihov Ancient Machine (JOI21_ancient_machine) C++17
70 / 100
 55 ms 9036 KB 
#include "Anna.h"
#include <algorithm>
#include <iostream>
#include <cassert>
#include <vector>

typedef long long llong;
const int BUCKET_SIZE = 73;
const int MYLOG = 51;

llong fib[BUCKET_SIZE + 5];
struct FibbonacciConverter
{
    std::string getString(std::string s)
    {
        while (s.size() % BUCKET_SIZE != 0)
        {
            s += '0';
        }

        // std::cout << "send: " << s << '\n';
        std::string res;
        for (int i = 0 ; i < s.size() ; i += BUCKET_SIZE)
        {
            llong currNum = 0;
            for (int j = i ; j < i + BUCKET_SIZE ; ++j)
            {
                // if (j != i) assert(s[j] == '0' || s[j - 1] == '0');
                if (s[j] == '1') currNum += fib[j - i];
                assert(currNum < (1LL << MYLOG));
            }

            // std::cout << "num is: " << currNum << '\n';
            for (int log = MYLOG - 1 ; log >= 0 ; --log)
            {
                if (currNum & (1LL << log))
                {
                    res += '1';
                } else
                {
                    res += '0';
                }
            }
        }

        return res;
    }

    std::string fromString(std::string s)
    {
        assert(s.size() % MYLOG == 0);
        std::string res;
        for (int i = 0 ; i < s.size() ; i += MYLOG)
        {
            llong currNum = 0;
            for (int j = i ; j < i + MYLOG ; ++j)
            {
                currNum *= 2;
                if (s[j])
                {
                    currNum++;
                }
            }

            std::string toAdd;
            for (int pos = BUCKET_SIZE ; pos > 0 ; --pos)
            {
                if (currNum >= fib[pos - 1])
                {
                    toAdd += '1';
                    currNum -= fib[pos - 1];
                } else
                {
                    toAdd += '0';
                }
            }

            std::reverse(toAdd.begin(), toAdd.end());
            res += toAdd;
        }

        return res;
    }
};

void Anna(int N, std::vector <char> s) 
{
    fib[0] = 1;
    fib[1] = 2;
    fib[2] = 4;
    for (int i = 3 ; i < BUCKET_SIZE + 5 ; ++i)
    {
        fib[i] = fib[i - 1] + fib[i - 2];
    }

    std::string res;
    bool foundX = false;
    int xPos = -2;
    for (int i = 0 ; i < N ; ++i)
    {
        if (!foundX && s[i] == 'X')
        {
            xPos = i;
            foundX = true;
            res += '1';
            // std::cout << i << '\n';
        } else if (foundX && s[i] == 'Z' && (i == xPos + 1 || (res.back() == '0' && (i + 1 == N || s[i + 1] != 'Z'))))
        {
            // std::cout << i << '\n';
            res += '1';
        } else
        {
            // assert(!foundX || s[i - 1] == 'X' || s[i] != 'Z' || (i + 1 < N && s[i + 1] == 'Z'));
            res += '0';
        }
    }

    // std::cout << "Res before: " << res << '\n';
    FibbonacciConverter converter;
    // res = converter.getString(res);

    // std::cout << "res: " << res.size() << '\n';
    for (int i = 0 ; i < res.size() ; ++i)
    {
        Send(res[i] - '0');
    }
}

#include "Bruno.h"
#include <algorithm>
#include <iostream>
#include <cassert>
#include <vector>

typedef long long llong;
const int MAXN = 100000 + 10;
const int BUCKET_SIZE = 73;
const int MYLOG = 51;

llong fibB[BUCKET_SIZE + 5];
struct FibbonacciConverterB
{
    std::string getString(std::string s)
    {
        while (s.size() % BUCKET_SIZE != 0)
        {
            s += '0';
        }

        std::string res;
        for (int i = 0 ; i < s.size() ; i += BUCKET_SIZE)
        {
            llong currNum = 0;
            for (int j = i ; j < i + BUCKET_SIZE ; ++j)
            {
                if (s[j] == '1') currNum += fibB[j - i];
            }

            assert(currNum < (1LL << MYLOG));
            for (int log = MYLOG - 1 ; log >= 0 ; --log)
            {
                if (currNum & (1LL << log))
                {
                    res += '1';
                } else
                {
                    res += '0';
                }
            }
        }

        return res;
    }

    std::string fromString(std::string s)
    {
        assert(s.size() % MYLOG == 0);
        std::string res;
        for (int i = 0 ; i < s.size() ; i += MYLOG)
        {
            llong currNum = 0;
            for (int j = i ; j < i + MYLOG ; ++j)
            {
                currNum *= 2;
                if (s[j] == '1')
                {
                    currNum++;
                }
            }

            // std::cout << "curr num is: " << currNum << '\n';
            std::string toAdd;
            for (int pos = BUCKET_SIZE ; pos > 0 ; --pos)
            {
                if (currNum >= fibB[pos - 1])
                {
                    toAdd += '1';
                    currNum -= fibB[pos - 1];
                } else
                {
                    toAdd += '0';
                }
            }

            std::reverse(toAdd.begin(), toAdd.end());
            res += toAdd;
        }

        return res;
    }
};

void Bruno(int N, int L, std::vector <int> A) 
{
    fibB[0] = 1;
    fibB[1] = 2;
    for (int i = 2 ; i < BUCKET_SIZE + 5 ; ++i)
    {
        fibB[i] = fibB[i - 1] + fibB[i - 2];
    }

    std::string res;
    for (int i = 0 ; i < L ; ++i)
    {
        res += '0' + A[i];
    }

    FibbonacciConverterB converter;
    // std::string s = converter.fromString(res);
    std::string s = res;
    
    // std::cout << "receive: " << s << '\n';
    int xPos = -1;
    int added = 0;
    std::vector <int> pos;
    for (int i = 0 ; i < L ; ++i)
    {
        if (s[i] == '1')
        {
            if (xPos == -1) xPos = i;
            // std::cout << "here: " << i << '\n';
            pos.push_back(i);
        }
    }

    if (pos.empty())
    {
        for (int i = 0 ; i < N ; ++i)
        {
            Remove(i);
        }

        return;
    }

    if (pos.back() < N - 1) pos.push_back(N - 1);
    for (int i = 0 ; i < xPos ; ++i)
    {
        Remove(i);
    }

    for (int i = 1 ; i < pos.size() ; ++i)
    {
        for (int j = pos[i] - 1 ; j > pos[i - 1] ; --j)
        {
            Remove(j);
        }

        Remove(pos[i]);
    }

    Remove(pos[0]);
}

Compilation message

Anna.cpp: In member function 'std::string FibbonacciConverter::getString(std::string)':
Anna.cpp:23:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |         for (int i = 0 ; i < s.size() ; i += BUCKET_SIZE)
      |                          ~~^~~~~~~~~~
Anna.cpp: In member function 'std::string FibbonacciConverter::fromString(std::string)':
Anna.cpp:53:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for (int i = 0 ; i < s.size() ; i += MYLOG)
      |                          ~~^~~~~~~~~~
Anna.cpp: In function 'void Anna(int, std::vector<char>)':
Anna.cpp:123:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  123 |     for (int i = 0 ; i < res.size() ; ++i)
      |                      ~~^~~~~~~~~~~~
Anna.cpp:119:25: warning: unused variable 'converter' [-Wunused-variable]
  119 |     FibbonacciConverter converter;
      |                         ^~~~~~~~~

Bruno.cpp: In member function 'std::string FibbonacciConverterB::getString(std::string)':
Bruno.cpp:23:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |         for (int i = 0 ; i < s.size() ; i += BUCKET_SIZE)
      |                          ~~^~~~~~~~~~
Bruno.cpp: In member function 'std::string FibbonacciConverterB::fromString(std::string)':
Bruno.cpp:51:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |         for (int i = 0 ; i < s.size() ; i += MYLOG)
      |                          ~~^~~~~~~~~~
Bruno.cpp: In function 'void Bruno(int, int, std::vector<int>)':
Bruno.cpp:134:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  134 |     for (int i = 1 ; i < pos.size() ; ++i)
      |                      ~~^~~~~~~~~~~~
Bruno.cpp:100:26: warning: unused variable 'converter' [-Wunused-variable]
  100 |     FibbonacciConverterB converter;
      |                          ^~~~~~~~~
Bruno.cpp:106:9: warning: unused variable 'added' [-Wunused-variable]
  106 |     int added = 0;
      |         ^~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 780 KB Output is correct
2 Correct 0 ms 800 KB Output is correct
3 Correct 0 ms 784 KB Output is correct
4 Correct 0 ms 784 KB Output is correct
5 Correct 1 ms 796 KB Output is correct
6 Correct 1 ms 796 KB Output is correct
7 Correct 0 ms 796 KB Output is correct
8 Correct 0 ms 1292 KB Output is correct
9 Correct 0 ms 796 KB Output is correct
10 Correct 0 ms 796 KB Output is correct
11 Correct 1 ms 784 KB Output is correct

Subtask #2
65.0 / 95.0

# Verdict Execution time Memory Grader output
1 Partially correct 41 ms 8784 KB Partially correct
2 Partially correct 40 ms 8552 KB Partially correct
3 Partially correct 40 ms 8464 KB Partially correct
4 Partially correct 41 ms 8588 KB Partially correct
5 Partially correct 40 ms 8608 KB Partially correct
6 Partially correct 40 ms 8532 KB Partially correct
7 Partially correct 40 ms 8624 KB Partially correct
8 Partially correct 40 ms 8556 KB Partially correct
9 Partially correct 40 ms 8544 KB Partially correct
10 Partially correct 40 ms 8548 KB Partially correct
11 Partially correct 40 ms 8556 KB Partially correct
12 Partially correct 40 ms 8616 KB Partially correct
13 Partially correct 45 ms 8492 KB Partially correct
14 Partially correct 55 ms 8588 KB Partially correct
15 Partially correct 43 ms 8752 KB Partially correct
16 Partially correct 45 ms 9036 KB Partially correct
17 Partially correct 46 ms 8440 KB Partially correct
18 Partially correct 46 ms 8488 KB Partially correct
19 Partially correct 46 ms 8508 KB Partially correct
20 Partially correct 40 ms 8632 KB Partially correct
21 Partially correct 42 ms 9008 KB Partially correct
22 Partially correct 46 ms 8580 KB Partially correct
23 Partially correct 40 ms 8596 KB Partially correct
24 Partially correct 41 ms 8612 KB Partially correct
25 Partially correct 46 ms 8468 KB Partially correct
26 Partially correct 48 ms 8392 KB Partially correct
27 Partially correct 46 ms 8388 KB Partially correct
28 Partially correct 47 ms 8588 KB Partially correct
29 Partially correct 46 ms 8392 KB Partially correct
30 Partially correct 49 ms 8424 KB Partially correct
31 Partially correct 46 ms 8428 KB Partially correct
32 Partially correct 40 ms 8560 KB Partially correct
33 Partially correct 40 ms 8556 KB Partially correct