fork(1) download
copy 
  1. #include <stdio.h>
  2. #include <math.h>
  3. #define ERROMAX 0.0001
  4.  
  5. int main (void) {
  6. 	printf("Entradas inteiras:\n");
  7. 	int falsosPositivos = 0;
  8. 	for ( int cat1 = 1 ; cat1 <= 100 ; cat1++ )
  9. 	    for ( int cat2 = cat1 ; cat2 <= 100 ; cat2++ )
  10. 	        for ( int hip = 1 ; hip <= 100 ; hip++ ) {
  11. 	        	int semConversao = (hip == sqrt(pow(cat1,2) + pow(cat2,2)));
  12. 	        	int inteiro = (hip == (int)sqrt(pow(cat1,2) + pow(cat2,2)));
  13. 	        	int quadrado = (hip*hip == cat1*cat1 + cat2*cat2);
  14. 	        	int maxErro = (fabs((float)hip - sqrt(pow(cat1,2) + pow(cat2,2))) < ERROMAX);
  15. 	        	if ( semConversao || quadrado || maxErro ) {
  16. 	        		printf("(%d,%d,%d) %d%d%d%d\n", cat1, cat2, hip, 
  17. 	        		       semConversao, inteiro, quadrado, maxErro);
  18. 	        	}
  19. 	        	else if ( inteiro ) {
  20. 	        		falsosPositivos++;
  21. 	        	}
  22. 	        }
  23.     printf("\nFalsos positivos: %d\n", falsosPositivos);
  24.  
  25.     printf("\nEntradas em ponto flutuante:\n");
  26. 	falsosPositivos = 0;
  27. 	for ( float cat1 = 0.1 ; cat1 <= 10 ; cat1 += 0.1 )
  28. 	    for ( float cat2 = cat1 ; cat2 <= 10 ; cat2 += 0.1 )
  29. 	        for ( float hip = 0.1 ; hip <= 10 ; hip += 0.1 ) {
  30. 	        	int semConversao = (hip == sqrt(pow(cat1,2) + pow(cat2,2)));
  31. 	        	int inteiro = (hip == (int)sqrt(pow(cat1,2) + pow(cat2,2)));
  32. 	        	int quadrado = (hip*hip == cat1*cat1 + cat2*cat2);
  33. 	        	int maxErro = (fabs((float)hip - sqrt(pow(cat1,2) + pow(cat2,2))) < ERROMAX);
  34. 	        	if ( semConversao || quadrado || maxErro ) {
  35. 	        		printf("(%f,%f,%f) %d%d%d%d\n", cat1, cat2, hip, 
  36. 	        		       semConversao, inteiro, quadrado, maxErro);
  37. 	        	}
  38. 	        	else if ( inteiro ) {
  39. 	        		falsosPositivos++;
  40. 	        	}
  41. 	        }
  42.    printf("\nFalsos positivos: %d\n", falsosPositivos);
  43.    return 0;
  44. }
Success #stdin #stdout 0.47s 2008KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Entradas inteiras:
(3,4,5) 1111
(5,12,13) 1111
(6,8,10) 1111
(7,24,25) 1111
(8,15,17) 1111
(9,12,15) 1111
(9,40,41) 1111
(10,24,26) 1111
(11,60,61) 1111
(12,16,20) 1111
(12,35,37) 1111
(13,84,85) 1111
(14,48,50) 1111
(15,20,25) 1111
(15,36,39) 1111
(16,30,34) 1111
(16,63,65) 1111
(18,24,30) 1111
(18,80,82) 1111
(20,21,29) 1111
(20,48,52) 1111
(21,28,35) 1111
(21,72,75) 1111
(24,32,40) 1111
(24,45,51) 1111
(24,70,74) 1111
(25,60,65) 1111
(27,36,45) 1111
(28,45,53) 1111
(28,96,100) 1111
(30,40,50) 1111
(30,72,78) 1111
(32,60,68) 1111
(33,44,55) 1111
(33,56,65) 1111
(35,84,91) 1111
(36,48,60) 1111
(36,77,85) 1111
(39,52,65) 1111
(39,80,89) 1111
(40,42,58) 1111
(40,75,85) 1111
(42,56,70) 1111
(45,60,75) 1111
(48,55,73) 1111
(48,64,80) 1111
(51,68,85) 1111
(54,72,90) 1111
(57,76,95) 1111
(60,63,87) 1111
(60,80,100) 1111
(65,72,97) 1111

Falsos positivos: 3934

Entradas em ponto flutuante:
(0.300000,0.400000,0.500000) 0001
(0.500000,1.200000,1.300000) 0001
(0.600000,0.800000,1.000000) 0001
(0.700000,2.400000,2.500000) 0001
(0.800000,1.500000,1.700000) 0001
(0.900000,1.200000,1.500000) 0001
(0.900000,3.999998,4.099998) 0001
(1.000000,2.400000,2.600000) 0001
(1.100000,5.999997,6.099997) 0001
(1.200000,1.600000,2.000000) 0001
(1.200000,3.499999,3.699999) 0001
(1.300000,8.399996,8.499996) 0001
(1.400000,4.799998,4.999998) 0001
(1.500000,2.000000,2.500000) 0001
(1.500000,3.599999,3.899998) 0001
(1.600000,2.999999,3.399999) 0001
(1.600000,6.299996,6.499996) 0001
(1.800000,2.400000,2.999999) 0001
(1.800000,7.999995,8.199995) 0001
(2.000000,2.100000,2.899999) 0001
(2.000000,4.799998,5.199997) 0001
(2.100000,2.799999,3.499999) 0001
(2.100000,7.199996,7.499995) 0001
(2.400000,3.199999,3.999998) 0001
(2.400000,4.499998,5.099998) 0001
(2.400000,6.999996,7.399995) 0001
(2.500000,5.999997,6.499996) 0001
(2.700000,3.599999,4.499998) 0001
(2.799999,4.499998,5.299997) 0001
(2.999999,3.999998,4.999998) 0001
(2.999999,7.199996,7.799995) 0001
(3.199999,5.999997,6.799996) 0001
(3.299999,4.399998,5.499997) 0001
(3.299999,5.599997,6.499996) 0001
(3.499999,8.399996,9.099998) 0001
(3.599999,4.799998,5.999997) 0001
(3.599999,7.699995,8.499996) 0001
(3.899998,5.199997,6.499996) 0001
(3.899998,7.999995,8.899998) 0001
(3.999998,4.199998,5.799997) 0001
(3.999998,7.499995,8.499996) 0001
(4.199998,5.599997,6.999996) 0001
(4.499998,5.999997,7.499995) 0001
(4.799998,5.499997,7.299995) 0001
(4.799998,6.399996,7.999995) 0001
(5.099998,6.799996,8.499996) 0001
(5.399997,7.199996,8.999998) 0001
(5.699997,7.599995,9.500000) 0001
(5.999997,6.299996,8.699997) 0001
(6.499996,7.199996,9.700001) 0001

Falsos positivos: 0
https://ideone.com/3NefCR
language:
C99 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!