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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <math.h>
  4.  
  5. #define MAX_VALUE 2000000001L
  6.  
  7. int main(void)	{
  8. 	register long int counter,tmp, main_num, num_to_add, i1,i2;
  9. 	long int *array, smallest[3], size;
  10. 	FILE *input, *output;
  11.  
  12. 	if(!(input = fopen("operators.in","r")))	{
  13. 		printf("Failed to open operators.in\n");
  14. 		exit(EXIT_FAILURE);
  15. 	}
  16. 	if(!(output = fopen("operators.out","w")))	{
  17. 		printf("Failed to open operators.out\n");
  18. 		exit(EXIT_FAILURE);
  19. 	}
  20.  
  21. 	smallest[0] = MAX_VALUE;
  22.  
  23. 	fscanf(input,"%ld",&size);
  24.  
  25. 	if(!(array = (long int *) malloc(size * sizeof(long int))))	{
  26. 		printf("Failed to allocate memory for input\n");
  27. 		exit(EXIT_FAILURE);
  28. 	}
  29.  
  30. 	array[0] = 0;
  31. 	counter = 1;
  32. 	fscanf(input, "%ld", &array[0]);
  33.  
  34. 	do	{
  35. 		fscanf(input, "%ld", &array[counter]);
  36. 		fscanf(input, "%ld", &array[counter + 1]);
  37. 		i1 = labs(array[0] + array[counter]);
  38. 		i2 = labs(array[0] + array[counter + 1]);
  39. 		counter += 2;
  40. 	}while(counter - 2 < size && i1 > i2);
  41.  
  42.  
  43. 	array =	(long int *) realloc((long int *) array, ((size = counter) * sizeof(long int)));
  44.  
  45. 	for(main_num = 0; main_num < size; main_num++)	{
  46. 		for(num_to_add = main_num + 1; num_to_add < size; num_to_add++)	{
  47. 			if((tmp = (labs(((int ) array[main_num] + array[num_to_add])))) < smallest[0])	{
  48. 				smallest[0] = tmp;
  49. 				smallest[1] = array[main_num];
  50. 				smallest[2] = array[num_to_add];
  51. 			}
  52. 		}
  53. 	}
  54.  
  55. 	fprintf(output,"%ld %ld",smallest[1],smallest[2]);
  56.  
  57. 	free(array);
  58.  
  59. 	exit(EXIT_SUCCESS);
  60. }
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https://ideone.com/FrmLF
language:
C (gcc 8.3)
created:
14 years ago
visibility:
public

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