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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. #define MAX 10
  5.  
  6. void printMatrix(int mat[MAX][MAX],int rows, int cols)
  7. {
  8.     int i,j;
  9. 	for(i=0;i<rows;i++)
  10. 	{
  11. 		for(j=0;j<cols;j++)
  12. 		  printf("%d ",mat[i][j]);
  13. 		printf("\n");
  14. 	}
  15. }
  16.  
  17. int symmetry(int mainmatrix[MAX][MAX], int size) {
  18.     int isqrtSize= (int)sqrt((double)size);
  19.     if(isqrtSize*isqrtSize!=size) 
  20.         return -1;
  21.     int i, j;
  22.     for(i=0;i<isqrtSize;i++){
  23.         for(j=0;j<isqrtSize;j++) {
  24.             if(mainmatrix[i][j]!=mainmatrix[j][i]) {
  25.                 return -1; 
  26.             }
  27.         }
  28.     }
  29.     return 0; 
  30. }
  31.  
  32. int main()
  33. {
  34. 	int mat[MAX][MAX]={0};
  35. 	int i,j,ret;
  36.  
  37.  
  38. 	mat[0][0]=14;
  39. 	printMatrix(mat,1,1);
  40. 	ret=symmetry(mat,1);
  41. 	ret==0 ? printf("symmetric\n") : printf("not symmetric\n"); 
  42.  
  43. 	mat[0][1]=mat[1][0]=mat[1][1]=2;
  44. 	printMatrix(mat,2,2);
  45. 	ret=symmetry(mat,4);
  46. 	ret==0 ? printf("symmetric\n") : printf("not symmetric\n");
  47.  
  48. 	mat[0][1]=3;
  49. 	printMatrix(mat,2,2);
  50. 	ret=symmetry(mat,4);
  51. 	ret==0 ? printf("symmetric\n") : printf("not symmetric\n");
  52.  
  53. 	return 0;
  54. }
Success #stdin #stdout 0s 1788KB
comments (?)
stdin
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Standard input is empty
stdout
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14 
symmetric
14 2 
2 2 
symmetric
14 3 
2 2 
not symmetric
https://ideone.com/puJkra
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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