text: Program to check if a matrix is symmetric | Efficient C # code for check a matrix is symmetric or no ; static int MAX = 100 ; Returns true if mat [ N ] [ N ] is symmetric , else false ; Driver code
code: using System ; class GFG { static bool isSymmetric ( int [ , ] mat , int N ) { for ( int i = 0 ; i < N ; i ++ ) for ( int j = 0 ; j < N ; j ++ ) if ( mat [ i , j ] != mat [ j , i ] ) return false ; return true ; } public static void Main ( ) { int [ , ] mat = { { 1 , 3 , 5 } , { 3 , 2 , 4 } , { 5 , 4 , 1 } } ; if ( isSymmetric ( mat , 3 ) ) Console . WriteLine ( " Yes " ) ; else Console . WriteLine ( " NO " ) ; } }