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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5. 	FILE*	fp;
  6. 	char	buf[640];
  7. 	errno_t	err;
  8. 	int	x_size, y_size;
  9. 	int	max_gray;
  10. 	int	ix, iy;
  11.  
  12. 	err = fopen_s(&fp, "std0.pgm", "rb");
  13. 	if (err) {
  14. 		fprintf(stderr, "fopen_s\n");
  15. 		return 1;
  16. 	}
  17.  
  18. 	// P5
  19. 	fgets(buf, sizeof buf, fp);
  20. 	if (buf[0] != 'P' || buf[1] != '5') {
  21. 		fprintf(stderr, "not P5\n");
  22. 		return 1;
  23. 	}
  24.  
  25. 	// x y
  26. 	x_size = y_size = 0;
  27. 	while (x_size == 0) {
  28. 		fgets(buf, sizeof buf, fp);
  29. 		if (buf[0] == '#') continue;
  30. 		sscanf_s(buf, "%d%d", &x_size, &y_size);
  31. 	}
  32.  
  33. 	// max
  34. 	max_gray = 0;
  35. 	while (max_gray == 0) {
  36. 		fgets(buf, sizeof buf, fp);
  37. 		if (buf[0] == '#') continue;
  38. 		sscanf_s(buf, "%d", &max_gray);
  39. 	}
  40.  
  41. 	printf("%d %d\n", x_size, y_size);
  42. 	printf("%d\n", max_gray);
  43.  
  44. 	for (ix = 0; ix < x_size; ix++) {
  45. 		for (iy = 0; iy < y_size; iy++) {
  46. 			printf("%02x", fgetc(fp));
  47. 		}
  48. 		printf("\n");
  49. 	}
  50.  
  51. 	fclose(fp);
  52. 	return 0;
  53. }
  54.  
  55. /*
  56. 32 32
  57. 255
  58. fffffffffffffffffffffffbaf7f7f7f7f7f7f7faffbffffffffffffffffffff
  59. fffffffffffffffffffff4e0651717171717130556dff4ffffffffffffffffff
  60. ffffffffffffffffffffb2528bafafafafaf8e261d4db2ffffffffffffffffff
  61. ffffffffffffffffedc2864dbaffffffffffdc6f474786c2edffffffffffffff
  62. ffffffffffffffffc74273e0f3fffffffffff9e6dfdf7342c7ffffffffffffff
  63. fffffffffffff7b065156fffffffffffffffffffffff6f1565b0f7ffffffffff
  64. ffffffffffffef57030d78ffffffffffffffffffffff780d0357efffffffffff
  65. ffffffffffffef57298dcdffffffffffffffffffffffcd8d2957efffffffffff
  66. ffffffffffe1b3413fd7ffffffffffffffffffffffffffd73f41b3e1ffffffff
  67. ffffffffff9a250d3fd7ffffffffffffffffffffffffffd73f0d259affffffff
  68. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  69. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  70. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  71. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  72. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  73. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  74. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  75. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  76. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  77. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  78. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  79. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  80. ffffffffff8700003fd7ffffffffffffffffffffffffffd73f000087ffffffff
  81. ffffffffff9a250d3fd7ffffffffffffffffffffffffffd73f0d259affffffff
  82. ffffffffffe1b3413fd7ffffffffffffffffffffffffffd73f41b3e1ffffffff
  83. ffffffffffffef57298dcdffffffffffffffffffffffcd8d2957efffffffffff
  84. ffffffffffffef57030d78ffffffffffffffffffffff780d0357efffffffffff
  85. fffffffffffff7b065156fffffffffffffffffffffff6f1565b0f7ffffffffff
  86. ffffffffffffffffc74273dfdfe6f9fffffffffff3e07342c7ffffffffffffff
  87. ffffffffffffffffedc28647476fdcffffffffffba4d86c2edffffffffffffff
  88. ffffffffffffffffffffb24d1d268eafafafafaf8b52b2ffffffffffffffffff
  89. fffffffffffffffffffff4df560513171717171765e0f4ffffffffffffffffff
  90. */
  91.  
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https://ideone.com/2kbgU
language:
C (gcc 8.3)
created:
12 years ago
visibility:
public

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