Vẽ hình chữ nhật, vuông, tam giác, thoi, hình bình hành trong ngôn ngữ c

Source code các giải thuật vẽ hình trong c

1. Hình vuông
2. Hình chữ nhật
3. Hình tam giác
4. Hình thoi
5. Hình bình hành

1) Hình vuông

void veHinhVuongDac(int dong) {
	for (int i = 0; i < canh; i++){
		for (int j = 0; j < canh; j++){
			if (i == 0 || i == canh - 1) printf("*");
			else if (j >= 0 || j <= canh - 1) printf("*");
			else printf(" ");
		}
		printf("\n");
	}
}

*****
*****
*****
*****
*****

void veVuongRong(int dong) {
	for (int i = 0; i < canh; i++){
		for (int j = 0; j < canh; j++){
			if (i == 0 || i == canh - 1) printf("*");
			else if (j >= 0 || j <= canh - 1) printf("*");
			else printf(" ");
		}
		printf("\n");
	}
}

*****
*   *
*   *
*   *
*****

2) Hình chữ nhật

void veHinhChuNhatDac(int cao, int rong) {
	for (int i = 0; i < cao; i++){
		for (int j = 0; j < rong; j++){
			if (i == 0 || i == cao - 1) printf("*");
			else if (j >= 0 || j <= rong - 1) printf("*");
			else printf(" ");
		}
		printf("\n");
	}
}

*******
*******
*******
*******

void veHinhChuNhatRong(int cao, int rong) {
	for (int i = 0; i < cao; i++){
		for (int j = 0; j < rong; j++){
			if (i == 0 || i == cao - 1) printf("*");
			else if (j == 0 || j == rong - 1) printf("*");
			else printf(" ");
		}
		printf("\n");
	}
}

*******
*     *
*     *
*******

1) Tam giác

void veHinhTamGiacTrai(int dong) {
	for (int i = 0; i < dong; i++)
	{
		for (int j = 0; j <= i; j++)
		{
			printf("*");
		}
		printf("\n");
	}
}

********
*******
******
*****
****
***
**
*

void veHinhTamGiacTraiRong(int dong) {
	for (int i = 0; i < dong; i++)
	{
		for (int j = 0; j <= i; j++)
		{
			if (j == 0 || i == dong - 1) printf("*");
			else if (i == j) printf("*");
			else printf(" ");
		}
		printf("\n");
	}
}

********
*     *
*    *
*   *
*  *
* *
**
*

void veTamGiacPhai(int dong) {
	int tmp = 0;
	for (int i = 0; i < dong; i++)
	{
		// in khoang tromg
		for (int l = 0; l < tmp; l++)
		{
			printf(" ");
		}
		for (int j = tmp; j < dong; j++)
		{
			printf("*");
		}
		tmp++;
		printf("\n");
	}
}

********
 *******
  ******
   *****
    ****
     ***
      **
       *

void veTamGiacPhaiRong(int dong) {
	int tmp = 0;
	for (int i = 0; i < dong; i++)
	{
		// in khoang tromg
		for (int l = 0; l < tmp; l++)
		{
			printf(" ");
		}
		for (int j = tmp; j < dong; j++)
		{
			if(i == 0 || j == dong -1) printf("*");
			else if (i == j) printf("*");
			else printf(" ");
		}
		tmp++;
		printf("\n");
	}
}

********
 *     *
  *    *
   *   *
    *  *
     * *
      **
       *

void veTamGiacGiua(int x) {
	if (x % 2 == 0 || x < 3) {
		printf("Khong ve duoc");
		return;
	}
	int mid = x / 2;
	int left = mid, right = mid;
	int tmp = x;
	for (int i = 0; i < tmp; i++)
	{
		for (int j = 0; j < x; j++)
		{
			if (j == mid) printf("*");
			else if (j >= left && j <= right) printf("*");
			else printf(" ");
		}
		left--;
		right++;
		tmp--;
		printf("\n");
	}
}

   *   
  ***
 *****
*******

2) Hình Thoi

void veTamGiacGiuaRong(int x) {
	if (x % 2 == 0 || x < 3) {
		printf("Khong ve duoc");
		return;
	}
	int mid = x / 2;
	int left = mid, right = mid;
	int tmp = x;
	for (int i = 0; i < tmp; i++)
	{
		for (int j = 0; j < x; j++)
		{
			if (j == mid) printf("*");
			else if (j >= left && j <= right) printf("*");
			else printf(" ");
		}
		left--;
		right++;
		tmp--;
		printf("\n");
	}
}

   *   
  * *
 *   *
*******

void veHinhThoi(int x) {
	if (x % 2 == 0 || x < 3) {
		printf("Khong ve duoc");
		return;
	}
	int mid = x / 2;
	int left = mid, right = mid;
	for (int i = 0; i < x; i++)
	{
		for (int j = 0; j < x; j++)
		{
			if (j == mid || j >= left && j <= right) printf("*");
			else printf(" ");
		}
		printf("\n");
		if (i < mid) {
			left--;
			right++;
		}
		else {
			left++;
			right--;
		}
	}
}

   *   
  ***
 *****
*******
 *****
  ***
   *

void veHinhThoiRong(int x) {
	if (x % 2 == 0 || x < 3) {
		printf("Khong ve duoc");
		return;
	}
	int mid = x / 2;
	int left = mid, right = mid;
	for (int i = 0; i < x; i++)
	{
		for (int j = 0; j < x; j++)
		{
			if (j == mid && (i == 0 || i == x-1)) printf("*");
			else if(j == left || j == right) printf("*");
			else printf(" ");
		}
		printf("\n");
		if (i < mid) {
			left--;
			right++;
		}
		else {
			left++;
			right--;
		}
	}
}

   *   
  * *
 *   *
*     *
 *   *
  * *
   *

3) Hình Bình Hành

void veHinhBinhHanh(int dong, int cot) {
	int tmp = dong;
	for (int i = 0; i < dong; i++)
	{
		for (int l = 0; l < tmp; l++)
		{
			printf(" ");
		}
		tmp--;
		for (int j = 0; j < cot; j++)
		{
			printf("*");
		}
		printf("\n");
	}
}

   *******  
  *******
 *******
*******

void veHinhBinhHanhRong(int dong, int cot) {
	int tmp = dong;
	for (int i = 0; i < dong; i++)
	{
		for (int l = 0; l < tmp; l++)
		{
			printf(" ");
		}
		tmp--;
		for (int j = 0; j < cot; j++)
		{
			if (i == 0 || i == dong - 1) printf("*");
			else if (j == 0 || j == cot - 1) printf("*");
			else printf(" ");
		}
		printf("\n");
	}
}

   *******  
  *     *
 *     *
*******

void veHinhBinhHanhNguoc(int dong, int cot) {
	int tmp = 0;
	for (int i = 0; i < dong; i++)
	{
		for (int l = 0; l < tmp; l++)
		{
			printf(" ");
		}
		if (tmp < dong) tmp++;
		for (int j = 0; j < cot; j++)
		{
			printf("*");
		}
		printf("\n");
	}
}

*******  
 *******
  *******
   *******

void veHinhBinhHanhNguocRong(int dong, int cot) {
	int tmp = 0;
	for (int i = 0; i < dong; i++)
	{
		for (int l = 0; l < tmp; l++)
		{
			printf(" ");
		}
		if (tmp < dong) tmp++;
		for (int j = 0; j < cot; j++)
		{
			if (i == 0 || i == dong - 1) printf("*");
			else if (j == 0 || j == cot - 1) printf("*");
			else printf(" ");
		}
		printf("\n");
	}
}