oj.uz

Submission #931106

# Submission time Handle Problem Language Result Execution time Memory
931106 2024-02-21T08:47:17 Z boris_mihov Ancient Machine (JOI21_ancient_machine) C++17
70 / 100
 69 ms 8540 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::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 += fib[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])
                {
                    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;
    for (int i = 2 ; i < BUCKET_SIZE + 5 ; ++i)
    {
        fib[i] = fib[i - 1] + fib[i - 2];
    }

    bool foundX = false;
    bool shouldSend = false;
    for (int i = 0 ; i < N ; ++i)
    {
        if (!foundX && s[i] == 'X')
        {
            foundX = true;
            Send(1);
            shouldSend = false;
        } else if (foundX && s[i] == 'Z' && (shouldSend || i + 1 == N || s[i + 1] != 'Z'))
        {
            Send(1);
            shouldSend = true;
        } else
        {
            shouldSend = false;
            Send(0);
        }
    }
}

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

const int MAXN = 100000 + 10;

void Bruno(int N, int L, std::vector <int> A) 
{
    int xPos = -1;
    int added = 0;
    std::vector <int> pos;
    for (int i = 0 ; i < L ; ++i)
    {
        if (A[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:22:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         for (int i = 0 ; i < s.size() ; i += BUCKET_SIZE)
      |                          ~~^~~~~~~~~~
Anna.cpp: In member function 'std::string FibbonacciConverter::fromString(std::string)':
Anna.cpp:50:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         for (int i = 0 ; i < s.size() ; i += MYLOG)
      |                          ~~^~~~~~~~~~

Bruno.cpp: In function 'void Bruno(int, int, std::vector<int>)':
Bruno.cpp:38:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for (int i = 1 ; i < pos.size() ; ++i)
      |                      ~~^~~~~~~~~~~~
Bruno.cpp:10:9: warning: unused variable 'added' [-Wunused-variable]
   10 |     int added = 0;
      |         ^~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 788 KB Output is correct
2 Correct 0 ms 784 KB Output is correct
3 Correct 0 ms 784 KB Output is correct
4 Correct 0 ms 796 KB Output is correct
5 Correct 0 ms 872 KB Output is correct
6 Correct 0 ms 784 KB Output is correct
7 Correct 0 ms 784 KB Output is correct
8 Correct 1 ms 796 KB Output is correct
9 Correct 1 ms 780 KB Output is correct
10 Correct 1 ms 796 KB Output is correct
11 Correct 0 ms 780 KB Output is correct

Subtask #2
65.0 / 95.0

# Verdict Execution time Memory Grader output
1 Partially correct 39 ms 7916 KB Partially correct
2 Partially correct 39 ms 8188 KB Partially correct
3 Partially correct 39 ms 8340 KB Partially correct
4 Partially correct 41 ms 8160 KB Partially correct
5 Partially correct 39 ms 8320 KB Partially correct
6 Partially correct 45 ms 8304 KB Partially correct
7 Partially correct 40 ms 8524 KB Partially correct
8 Partially correct 40 ms 8288 KB Partially correct
9 Partially correct 39 ms 8312 KB Partially correct
10 Partially correct 40 ms 8244 KB Partially correct
11 Partially correct 47 ms 8540 KB Partially correct
12 Partially correct 40 ms 8284 KB Partially correct
13 Partially correct 53 ms 8156 KB Partially correct
14 Partially correct 69 ms 8380 KB Partially correct
15 Partially correct 43 ms 8296 KB Partially correct
16 Partially correct 44 ms 8216 KB Partially correct
17 Partially correct 49 ms 8160 KB Partially correct
18 Partially correct 47 ms 8316 KB Partially correct
19 Partially correct 47 ms 8372 KB Partially correct
20 Partially correct 43 ms 8316 KB Partially correct
21 Partially correct 44 ms 8256 KB Partially correct
22 Partially correct 52 ms 8212 KB Partially correct
23 Partially correct 44 ms 8256 KB Partially correct
24 Partially correct 41 ms 8076 KB Partially correct
25 Partially correct 47 ms 8120 KB Partially correct
26 Partially correct 48 ms 8408 KB Partially correct
27 Partially correct 47 ms 8536 KB Partially correct
28 Partially correct 45 ms 8328 KB Partially correct
29 Partially correct 60 ms 8388 KB Partially correct
30 Partially correct 48 ms 8424 KB Partially correct
31 Partially correct 47 ms 8260 KB Partially correct
32 Partially correct 46 ms 8348 KB Partially correct
33 Partially correct 40 ms 8112 KB Partially correct