Homework_3 by Martin Angelov 10b class

A/04.11.2014/functions.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+int is_even(int num) {
+	return num % 2 == 0;
+}
+
+void draw_tree(int show_it) {
+	if(!show_it) {
+		return;
+	}
+	printf(" * \n");
+	printf("***\n");
+}
+
+int main() {
+	draw_tree(1);
+
+	return 0;
+}

A/04.11.2014/rot13.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+
+void encode(char arr[1000]) {
+	int i;
+	for(i = 0; arr[i] != '\0'; ++i) {
+		char ch = arr[i];
+		int number = ch - 'A';
+		number = (number + 13) % 26;
+		arr[i] = number + 'A';
+	}
+	printf("%s\n", arr);
+}
+
+int main() {
+	char buf[1000];
+	// encode(buf);
+	scanf("%s", buf);
+	//          ^ -- no ampersand
+	encode(buf);
+
+	return 0;
+}
+
+
+// scanf some text
+// rot13(text)

A/06.01.2015/computer_00/structures.c

@@ -0,0 +1,51 @@
+#include <stdio.h>
+
+struct point {
+	int x;
+	int y;
+};
+
+struct rect {
+	struct point pos;
+	struct point size;
+};
+
+struct rect create_rect(struct point pos, struct point size, struct point *center) {
+	struct rect result;
+
+	result.pos = pos;
+	result.size = size;
+
+	center->x = (pos.x + size.x) / 2;
+	center->y = (pos.y + size.y) / 2;
+
+	return result;
+}
+
+int main() {
+	struct point pos = {0, 0}, size, center;	
+	struct rect rectangle = {0, 0, 0, 0};
+	struct point *size_ptr;
+
+	size_ptr = &size;
+	size_ptr->x = 100;
+
+	++size_ptr->x; // == ++(size_ptr->x)
+
+	// (++size_ptr)->x;
+	// ++(size_ptr->x);
+
+	size.x = 100;
+	size.y = 100;
+
+	rectangle = create_rect(pos, size, &center);
+
+	printf("center(%d, %d)\n", center.x, center.y);
+
+	// valid rectangle.size.x = 0;
+
+	//printf("x = %d, y = %d, w = %d, h = %d\n",
+	//pos.x, pos.y, size.x, size.y);
+
+	return 0;
+}

A/06.01.2015/computer_00/structures_2.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+
+typedef struct mark_t mark;
+typedef int byte;
+typedef byte thisisaninteger;
+
+struct mark_t {
+	unsigned long long date;
+	int mark;
+};
+
+struct subject_t {
+	char name[32];
+	mark marks[42];
+};
+
+struct student_t {
+	char name[64];
+	int grade;
+	int class;
+	int number;
+	struct subject_t subjects[12];
+};
+
+int main() {
+
+	return 0;
+}

A/07.10.2014/00_computer/conditions.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int main() {
+	int counter;
+	int even;
+	for(counter = 10, even = 0; counter <= 1000 && even < 10; counter+=2, even++) {
+			printf("%d\n", counter);
+	}
+
+	return 0;
+}

A/09.12.2014/Marto-PC/random.c

@@ -0,0 +1,17 @@
+#include "stdio.h"
+#include "stdlib.h"
+#include "time.h"
+
+
+int main()
+{
+	int random_number = 0;
+	int i;
+	srand(time(NULL));
+	for (i = 0; i < 10; ++i)
+	{
+		random_number = rand() % 9 + 1;
+		printf("%d\n", random_number);
+	}
+	return 0;
+}

A/09.12.2014/Marto-PC/random.c~

@@ -0,0 +1,17 @@
+#include "stdio.h"
+#include "stdlib.h"
+#include "time.h"
+
+
+int main()
+{
+	int random_number = 0;
+	int i;
+	srand(time(NULL));
+	for (int i = 0; i < 10; ++i)
+	{
+		random_number = rand() % 9 + 1;
+		printf("%d\n", random_number);
+	}
+	return 0;
+}

A/09.12.2014/castle.c

@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#define SIZE  9 
+int main()
+{
+	int castle[SIZE][SIZE];
+	int i,b;
+
+	srand(time(NULL));
+
+
+	for (i = 0; i < SIZE; i += 1)
+	{
+		for (b = 0; b < SIZE; b += 1)
+		{
+			castle[i][b] = rand() % 9 +1; 
+			printf("%3d", castle[i][b]);
+		}
+		printf("\n");
+	}
+
+	return 0;
+}

A/09.12.2014/computer_11/castle.c

@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#define CASTLE_SIZE 9
+
+void initialize_castle_grounds(int castle_grounds[CASTLE_SIZE][CASTLE_SIZE])
+{
+	int i;
+	for (i = 0; i < CASTLE_SIZE; ++i)
+	{
+		int j;
+		for (j = 0; j < CASTLE_SIZE; ++j)
+		{
+			castle_grounds[i][j] = rand() % 9 + 1;
+		}
+	}
+
+	castle_grounds[CASTLE_SIZE / 2][CASTLE_SIZE / 2] = 20;
+}
+
+void print_castle_grounds(int castle_grounds[CASTLE_SIZE][CASTLE_SIZE])
+{
+	int i;
+	for (i = 0; i < CASTLE_SIZE; ++i)
+	{
+		int j;
+		for (j = 0; j < CASTLE_SIZE; ++j)
+		{
+			printf("%d ", castle_grounds[i][j]);
+		}
+
+		printf("\n");
+	}
+}
+
+int main()
+{
+	int castle_grounds[CASTLE_SIZE][CASTLE_SIZE];
+	srand(time(NULL));
+
+	initialize_castle_grounds(castle_grounds);
+	print_castle_grounds(castle_grounds);
+
+	return 0;
+}

A/09.12.2014/computer_11/test.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#define CASTLE_SIZE 9
+
+int main()
+{
+	int random_number = 0;
+	int i;
+
+	srand(time(NULL));
+	for (i = 0; i < 10; ++i)
+	{
+		random_number = rand() % 9 + 1;
+		printf("%d\n", random_number);
+	}
+
+	return 0;
+}

A/09.12.2014/computer_13/castle_attack.c

@@ -0,0 +1,30 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+
+int main()
+{
+   int SIZE = 9;
+   int rows,cols;
+   int defenders[SIZE][SIZE];
+   srand(time(NULL));
+   for(rows = 0; rows < SIZE; rows++)
+   {
+         for(cols = 0; cols < SIZE; cols++)
+         {
+            if(rows == SIZE / 2 && cols == SIZE / 2)
+            {
+               defenders[rows][cols] = 20;
+            }
+            else
+            {
+               defenders[rows][cols] = rand() % 9 + 1;
+            }
+            printf("%d ",defenders[rows][cols]);
+         }
+         printf("\n");
+   }
+
+   return 0;
+}

A/09.12.2014/random.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+int main ()
+{
+	int random_number = 0;
+	int i;
+	int n = 42;
+
+	srand(time(NULL));
+
+	for( i = 0; i < 3; i++ )
+	{
+		random_number = rand() % 9 + 1;
+		printf ("%d\n", random_number);
+	}
+
+	return 0;
+}

A/09.12.2014/rangelov_pc/castel.c

@@ -0,0 +1,17 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+int main()
+{
+	int random_number = 0;
+	int i;
+	int castel[10];
+	srand(time(NULL));
+	for(i = 0; i<10; i++)
+	{
+		castel[i] = rand() % 9 + 1;
+		printf("%d\n", castel[i]);
+	}
+	return 0;
+}

A/09.12.2014/rangelov_pc/castel.c~

@@ -0,0 +1,17 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+int main()
+{
+	int random_number = 0;
+	int i;
+	int castel[10];
+	srand(time(NULL));
+	for(i = 0; i<10; i++)
+	{
+		castel[i] = rand() % 9 + 1;
+		printf("%d\n", castel[i]);
+	}
+	return 0;
+}

A/09.12.2014/rangelov_pc/random.c

@@ -0,0 +1,17 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+int main()
+{
+	int random_number = 0;
+	int i;
+
+	srand(time(NULL));
+	for(i = 0; i<10; i++)
+	{
+		random_number = rand() % 9 + 1;
+		printf("%d", random_number);
+	}
+	return 0;
+}

A/09.12.2014/rangelov_pc/random.c~

@@ -0,0 +1,17 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<time.h>
+
+int main()
+{
+	int random_number = 0;
+	int i;
+
+	srand(time(NULL));
+	for(i = 0; i<10; i++)
+	{
+		random_number = rand() % 9 + 1;
+		printf("%d", random_number);
+	}
+	return 0;
+}