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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int main(void) {
  5.  
  6. 	int i,j;
  7.  
  8. 		//square
  9.  
  10. 	//vertical 0 to 5
  11. 	for(i=0;i<5;i++){
  12. 		//horizontal 0 to 5
  13. 		for(j=0;j<5;j++){
  14.  
  15. 			printf(" * ");
  16. 		}
  17.  
  18. 		printf("\n");
  19. 	}
  20.  
  21. 	//right triangle
  22. 	for(i=0;i<5;i++){
  23. 		for(j=0;j<i;j++){
  24. 			printf(" * ");
  25. 		}
  26. 		printf("\n");
  27. 	}
  28. 	//diagonal
  29. 	for(i=0;i<=5;i++){
  30. 		for(j=0;j<=5;j++){
  31.  
  32. 			if(i==j)
  33. 				printf("*");
  34. 			else
  35. 				printf(" ");
  36. 		}
  37. 		printf("\n");
  38. 	}
  39. 	//pyramid
  40. 	for(i = 1; i <= 5 ;i++){
  41.  
  42. 		for(j = i; j < 5 ;j++){
  43. 			printf(" ");
  44. 		}
  45.  
  46. 		for(j = 1; j <= (2 * i - 1) ;j++){
  47. 			printf("*");
  48. 		}
  49.  
  50. 	printf("\n");
  51. }
  52.  
  53. 	//circle
  54. 	float dist; 
  55. 	int radius = 5;
  56.  
  57. 	//vertical i from 0 to diameter
  58. 	for (int i = 0; i <= (2 * radius); i++) { 
  59.  
  60. 		//horizontal i from 0 to diameter = 2 * radius
  61. 		for (int j = 0; j <= (2 * radius); j++) { 
  62.  
  63.     	//formula for dist. from (i,j) to (radius,radius) 
  64.     	//on a grid (i=0,j=0) to (i=2*radius,j=2*radius)
  65.     	//i = x2, j = y2 radius = y1 = x1
  66.     	dist = sqrt((i - radius) * (i - radius) + (j - radius) * (j - radius));
  67.  
  68.     	//print * when distance from (i,j) to (radius,radius) is radius + or - .5
  69.     	if (dist > radius - 0.5 && dist < radius + 0.5)  
  70.     	printf(" *");
  71.     	else 
  72.         printf("  ");       
  73.     }
  74.  
  75.     printf("\n"); 
  76.   }
  77.  
  78. 	return 0;
  79. }
  80.  
Success #stdin #stdout 0s 9424KB
comments (?)
stdin
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Standard input is empty
stdout
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 *  *  *  *  * 
 *  *  *  *  * 
 *  *  *  *  * 
 *  *  *  *  * 
 *  *  *  *  * 

 * 
 *  * 
 *  *  * 
 *  *  *  * 
*     
 *    
  *   
   *  
    * 
     *
    *
   ***
  *****
 *******
*********
       * * * * *      
     *           *    
   *               *  
 *                   *
 *                   *
 *                   *
 *                   *
 *                   *
   *               *  
     *           *    
       * * * * *
https://ideone.com/nlRQiA
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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