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  1. #include <stdio.h>
  2.  
  3. 	struct Record
  4. 	{
  5. 		int start;
  6. 		int end;
  7. 		int freq;
  8. 	};
  9. 	void display(const struct Record *records, const struct Record *x_axis, const struct Record *y_axis, int length, int width);
  10. 	int count_digits(int n);
  11.  
  12. 	int main(int argc, char *argv[])
  13. 	{
  14. 		struct Record x_axis, y_axis;
  15. 		int length, interval;
  16. 		scanf("%u %u %u %u\n", &x_axis.start, &x_axis.end, &y_axis.start, &y_axis.end);
  17. 		scanf("%u\n", &interval);
  18. 		scanf("%u\n", &length);
  19. 		int size = length / interval;
  20. 		struct Record records[size];
  21. 		int k = 0;
  22. 		int biggest_start = 0, biggest_end = 0;
  23. 		for(int i = 0; i < length; )
  24. 		{
  25. 			int a, b;
  26. 			struct Record current = {.start = 0, .end = 0, .freq = 0};
  27. 			for(int j = 0; j < interval; j++, i++)
  28. 			{
  29. 				scanf("%u %u\n", &a, &b);
  30. 				if(current.start == 0)
  31. 					current.start = a;
  32. 				current.freq += b;
  33. 			}
  34. 			current.end = a;
  35. 			//keeping track of the largest boundaries in order to estimate the width of the bars
  36. 			//eg : 132 and 1934 will give a width of 3 (132) + 4 (1934) + 1 (space inbetween the numbers) = 8
  37. 			if(current.start > biggest_start)
  38. 				biggest_start = current.start;
  39. 			if(current.end > biggest_end)
  40. 				biggest_end = current.end;
  41. 			current.freq /= interval;
  42. 			records[k++] = current;
  43. 		}
  44. 		display(records, &x_axis, &y_axis, size, count_digits(biggest_start) + count_digits(biggest_end) + 1);
  45.  
  46. 		return 0;
  47. 	}
  48.  
  49. 	void display(const struct Record *records, const struct Record *x_axis, const struct Record *y_axis, int length, int width)
  50. 	{
  51. 		int left_pad = count_digits(y_axis->end);
  52. 		for(int freq = y_axis->end; freq >= 1; freq--)
  53. 		{
  54. 			printf("%*d ", left_pad, freq);
  55. 			for(int i = 0; i < length; i++)
  56. 			{
  57. 				//http://stackoverflow.com/a/16299867/3729391
  58. 				if(records[i].freq >= freq)
  59. 					printf("%.*s ", width, "##########################");
  60. 				else
  61. 					printf("%.*s ", width, "                          ");
  62. 			}
  63. 			printf("\n");
  64. 		}
  65. 		printf("%*c ", left_pad, ' ');
  66. 		for(int i = 0; i < length; i++)
  67. 			printf("%d%*d ", records[i].start, width - count_digits(records[i].start), records[i].end);
  68. 	}
  69.  
  70. 	int count_digits(int n)
  71. 	{
  72. 		if(n == 0)
  73. 			return 1;
  74. 		for(int i = 1, count = 0; ; i *= 10, count++)
  75. 			if(n / i == 0)
  76. 				return count;
  77. 	}
Success #stdin #stdout 0s 9432KB
comments ()
stdin
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1 4 1 10
	2
	4
	1 3
	2 3
	3 2
	4 6
stdout
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10         
 9         
 8         
 7         
 6         
 5         
 4     ### 
 3 ### ### 
 2 ### ### 
 1 ### ### 
   1 2 3 4
https://ideone.com/Dipi4o
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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