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  1. #include <stdio.h>
  2.  
  3. void lerMatriz(int tam, int mat[tam][tam]) {
  4. 	int i, j;
  5. 	for (i = 0; i < tam; i++) {
  6. 		for (j = 0; j < tam; j++) {
  7. 			scanf("%i", &mat[i][j]);
  8. 		}
  9. 	}
  10. }
  11.  
  12. void mostraMatriz(int tam, int mat[tam][tam]) {
  13. 	int i, j;
  14. 	for (i = 0; i < tam; i++) {
  15. 		for (j = 0; j < tam; j++) {
  16. 			printf("%i ", mat[i][j]);
  17. 		}
  18. 		printf("\n");
  19. 	}
  20. }
  21.  
  22. int somaDiagonalPrincipal(int tam, int mat[tam][tam]) {
  23. 	int i, soma = 0;
  24. 	for (i = 0; i < tam; i++) {
  25. 		soma += mat[i][i];
  26. 	}
  27. 	return soma;
  28. }
  29.  
  30. int somaDiagonalSecundaria(int tam, int mat[tam][tam]) {
  31. 	int i, soma = 0;
  32. 	for (i = 0; i < tam; i++) {
  33. 		soma += mat[i][tam-i-1];
  34. 	}
  35. 	return soma;
  36. }
  37.  
  38. void mostraVetor(int vet[], int tam) {
  39. 	int i;
  40. 	for (i = 0; i < tam; i++) {
  41. 		printf("%i ", vet[i]);
  42. 	}
  43. }
  44.  
  45. void somaLinhas(int tam, int mat[tam][tam], int vet[]) {
  46. 	int i, j;
  47. 	for (i = 0; i < tam; i++) {
  48. 		vet[i] = 0;
  49. 		for (j = 0; j < tam; j++) {
  50. 			vet[i] += mat[i][j];
  51. 		}
  52. 	}
  53. }
  54.  
  55. void somaColunas(int tam, int mat[tam][tam], int vet[]) {
  56. 	int i, j;
  57. 	for (j = 0; j < tam; j++) {
  58. 		vet[j] = 0;
  59. 		for (i = 0; i < tam; i++) {
  60. 			vet[j] += mat[i][j];
  61. 		}
  62. 	}
  63. }
  64.  
  65. int testaIgualidadeVetor(int vet[], int tam) {
  66. 	int i;
  67. 	for (i = 1; i <  tam; i++) {
  68. 		if (vet[i] != vet[i-1]) {
  69. 			return 0;
  70. 		}
  71. 	}
  72. 	return 1;
  73. }
  74.  
  75. int main(void) {
  76. 	int n;
  77. 	scanf("%i", &n);
  78. 	int mat[n][n];
  79.  
  80. 	lerMatriz(n, mat);
  81. 	mostraMatriz(n, mat);
  82.  
  83. 	int somaDP = 0, somaDS = 0;
  84. 	somaDP = somaDiagonalPrincipal(n,mat);  //soma da diagonal principal
  85. 	somaDS = somaDiagonalSecundaria(n,mat); //soma da diagonal secundaria
  86.  
  87. 	//soma linhas
  88. 	int vetL[n];
  89. 	somaLinhas(n, mat, vetL);
  90. 	printf("\nSoma das linhas: ");
  91. 	mostraVetor(vetL, n);
  92.  
  93. 	//soma colunas
  94. 	int vetC[n];
  95. 	somaColunas(n, mat, vetC);
  96. 	printf("\nSoma das colunas: ");
  97. 	mostraVetor(vetC, n);
  98.  
  99. 	printf("\nSoma diagonal principal %i e secundaria %i\n", somaDP, somaDS);
  100.  
  101. 	int testaL, testaC;
  102. 	testaL = testaIgualidadeVetor(vetL, n);
  103. 	testaC = testaIgualidadeVetor(vetC, n);
  104.  
  105. 	if (testaL && testaC && somaDP == somaDS && somaDP == vetL[0]) {
  106. 		printf("Quadrado magico");
  107. 	} else {
  108. 		printf("Quadrado nao magico");
  109. 	}
  110.  
  111. 	return 0;
  112. }
  113.  
Success #stdin #stdout 0s 10320KB
comments (?)
stdin
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3
8 0 7
4 5 6
3 10 2
stdout
copy 
8 0 7 
4 5 6 
3 10 2 

Soma das linhas: 15 15 15 
Soma das colunas: 15 15 15 
Soma diagonal principal 15 e secundaria 15
Quadrado magico
https://ideone.com/PNwlnY
Quadrado Mágico com função
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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