AlexeyTechnopark_C/1DZ_NumberOrderer.c at master · WeCodingNow/AlexeyTechnopark_C · GitHub

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#include <stdlib.h>
#include <stdio.h>

const int STRING_SIZE = 255;

int* open_file_read_numbers(char* _name)
{
      FILE *_h;
      _h = fopen(_name, "rw+");
      if(!_h)
      {
            printf("Couldn't open %s!", _name);
            return NULL;
      }

      int counter = 0;
      char* _buf = (char*)malloc(sizeof(char));
      while(fgets(_buf, STRING_SIZE, _h)) counter++; //ñ÷èòàåì êîë-âî ÷èñåë â ôàéëå


      int* _returnVector = (int*)malloc(sizeof(int) * counter + 1);

      realloc(_buf, sizeof(int));
      rewind(_h);

      for(int i = 1; i < counter+1; i++)
      {
            fgets(_buf, 255, _h);
            *(_returnVector + i) = atoi(_buf);
      }
      *_returnVector = counter;

      free(_buf);
      fclose(_h);

      return _returnVector;
}

void sort_numbers(int numberOfNumbers, int* _massiv)
{
     _massiv++;
             for(int i = 0; i < numberOfNumbers; i++)
             {
                     for(int j = i; j < numberOfNumbers; j++)
                     {
                                              if(*(_massiv + j) == 0)
                                              {
                                                           int buf = *(_massiv + i);
                                                           *(_massiv + i) = *(_massiv + j);
                                                           *(_massiv + j) = buf;
                                              }

                     }
             }
             for(int i = 0; i < numberOfNumbers; i++)
             {
                     if(*(_massiv + i) == 0) continue;
                     for(int j = i; j < numberOfNumbers; j++)
                     {
                                              if(*(_massiv + j) < 0)
                                              {
                                                           int buf = *(_massiv + i);
                                                           *(_massiv + i) = *(_massiv + j);
                                                           *(_massiv + j) = buf;
                                              }

                     }
             }
}

int main(int argc, char *argv[])
{
      if(argv[1] == NULL)
      {
            printf("Please provide a file");
            return 0;
      }

      int* _numbers = open_file_read_numbers(argv[1]); //ïåðâîå ÷èñëî â ïîëó÷åííîì ìàññèâå - êîëè÷åñòâî ÷èñåë â ìàññèâå
      if(_numbers == NULL)
      {
            printf("Please provide a text file filled with a number on each line.");
      }
      sort_numbers(*_numbers, _numbers);


      FILE *_h;
      _h = fopen(argv[1], "w+");

      for(int i = 1; i < *_numbers + 1; i++)
      {
           // printf("%d \n", *(_numbers + i));
           fprintf(_h, "%d \n", *(_numbers + i));
      }

      fclose(_h);
}