Added last three homeworks

2025.02.28/2Ex/array.c

@@ -0,0 +1,73 @@
+#include "array.h"
+
+io_status read_array(char* a[], int n, const char * name)
+{
+	char buf[LEN] = {0};
+	FILE *fp = 0;
+	int i, j;
+
+	if (!(fp = fopen(name, "r"))) return ERROR_OPEN;
+	for (i = 0; i < n; i++) {
+		if (!fgets(buf, sizeof(buf), fp))
+		{
+			fclose(fp);
+			free_array(a, i);
+			return ERROR_READ;
+		}
+
+		for (j = 0; buf[j]; j++)
+		{
+			if (buf[j] == '\n')
+			{
+				buf[j] = 0;
+				break;
+			}
+		}
+
+		a[i] = (char *)malloc((j+1) * sizeof(char));
+		if (!a[i]) 
+		{
+			fclose(fp);
+			free_array(a, i);
+			return ERROR_MEM;
+		}
+
+		strcpy(a[i], buf);
+	}
+
+	fclose(fp);
+	return SUCCESS;
+}
+
+
+void free_array(char ** a, int n)
+{
+	int i;
+	for(i = 0; i < n; ++i) 
+	{
+		if (a[i]) 
+		{
+			free(a[i]);
+			a[i] = 0;
+		}
+	}
+}
+
+void print_array(char ** a, int n, int m)
+{
+	int l = (n > m ? m : n);
+	int i;
+	for (i = 0; i < l; ++i) printf("%s\n", a[i]);
+}
+
+int check(char **a, int n, int (*cmp)(const char *, const char *))
+{
+	/* Каждый элемент больше следующего */
+	int i; int count = 0;
+	for (i = 1; i < n; i++)
+	{
+		if ((*cmp)(a[i-1], a[i]) > 0)
+			count++;
+	}
+	return count;
+}