zadanie include malloc include stdio include stdlib void min_max doubl

//////2 zadanie

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

void min_max(double* arr, int str, int stl, double* min, double* max, double* sum)
{
	*min = *(arr + stl * str + 0);
	*max = *(arr + stl * str + 0);
	*sum = 0;
	for (int i = 0; i < stl - 3; i++)
	{
		if (*min > * (arr + stl * str + i))
		{
			*min = *(arr + stl * str + i);
		}
		if (*max < *(arr + stl * str + i))
		{
			*max = *(arr + stl * str + i);
		}
		*sum += *(arr + stl * str + i);
	}
}
int main(int argc, char* argv[])
{
	setlocale(LC_ALL, "ru");
	char path[250];
	if (argc == 1)
	{
		printf("Enter file path:");
		gets(path);
	}
	else
	{
		strcpy(path, argv[1]);
	}
	FILE* file = fopen(path, "r");
	int N, M;
	char c = '1';
	M = N = 0;
	while (!feof(file))
	{
		do
		{
			double tmp;
			if (fscanf(file, "%lf", &tmp));
			{
				N++;
			}
			c = fgetc(file);
			if (c == '\n')
			{
				M++;
			}
		} while (c == ' ');
	}
	double min, max, sum;
	double* arr;
	M++;
	N /= M;
	N += 3;
	arr = calloc(N * M, sizeof(double));
	rewind(file);
	for (int i = 0; i < M; i++)
	{
		for (int j = 0; j < N - 3; j++)
		{
			fscanf(file, "%lf", (arr + i * N + j));
		}
	}
	for (int i = 0; i < M; i++)
	{
		min_max(arr, i, N, &min, &max, &sum);
		*(arr + i * N + (N - 3)) = sum;
		*(arr + i * N + (N - 2)) = min;
		*(arr + i * N + (N - 1)) = max;
	}
	fclose(file);
	remove(path);
	file = fopen(path, "w");
	for (int i = 0; i < M; i++)
	{
		for (int j = 0; j < N; j++)
		{
			if (j == N - 1)
			{
				fprintf(file, "%3.3lf", *(arr + i * N + j));
			}
			else
			{
				fprintf(file, "%3.3lf ", *(arr + i * N + j));
			}
		}
		fprintf(file, "\n");
	}
	fclose(file);
	free(arr);
	return 0;
}






//////3 zadanie



Для создания бинарного файла:
#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>


int randomno()
{
	return rand()%25 - rand()%30;
}

int main(int argc, char* argv[])
{
	setlocale(LC_ALL, "ru");
	char path[250];
	char path_dec[250];
	if (argc == 1)
	{
		printf("Enter file path:");
		gets(path);
	}
	else
	{
		strcpy(path, argv[1]);
	}
	strcpy(path_dec, path);
	strcat(path, "\\file.bin");
	strcat(path_dec,"\\file_dec.txt");
	FILE* file = fopen(path, "wb+");
	FILE* file_dec = fopen(path_dec, "wt+");
	int N;
	printf("Vvedite kol-vo chisel:");
	scanf("%d", &N);
	for (int i = 0; i < N; i++)
	{
		int tmp = randomno();
		fprintf(file_dec, "%3d ", tmp);
		fwrite(&tmp, sizeof(int), 1, file);
	}
	fclose(file);
	fclose(file_dec);
	return 0;
}
 
Основной код:
int main(int argc, char* argv[])
{
	setlocale(LC_ALL, "ru");
	char path[250];
	if (argc == 1)
	{
		printf("Enter file path:");
		gets(path);
	}
	else
	{
		strcpy(path, argv[1]);
	}
	FILE* file = fopen(path, "rb+");
	fseek(file, 0, SEEK_END);
	int n = ftell(file)/sizeof(int);
	int* arr;
	arr = calloc(n, sizeof(int));
	rewind(file);
	fread(arr, sizeof(int), n, file);
	int i_fp, i_lp, k;
	i_fp = i_lp = k = 0;
	for (int i = 0; i < n; i++)
	{
		if (k == 0 && (*(arr + i) > 0))
		{
			i_fp = i;
			k++;
		}
		if (k == 1 && (*(arr + i) > 0))
		{
			i_lp = i;
		}
	}
	fclose(file);
	remove(path);
	int* array;
	int tmp_size = n - (i_lp - i_fp) + 1;
	array = calloc(tmp_size, sizeof(int));
	file = fopen(path, "wb+");
	int j = 0;
	for (int i = 0; i < n; i++)
	{
		*(array + j) = *(arr + i);
		if (i == i_fp)
		{
			i = i_lp-1;
		}
		j++;
	}
	for (int i = 0; i < n; i++)
	{
		printf("%3d ", *(arr + i));
	}
	printf("\n\n");
	for (int i = 0; i < tmp_size; i++)
	{
		printf("%3d ", *(array + i));
	}
	fwrite(array, sizeof(int), tmp_size, file);
	free(arr);
	free(array);
	fclose(file);
	return 0;
}