Row | Java program to find common elements in two diagonals . ; Returns count of row wise same elements in two diagonals of mat [ n ] [ n ] ; Driver Code
import java . io . * ; class GFG { int MAX = 100 ; static int countCommon ( int mat [ ] [ ] , int n ) { int res = 0 ; for ( int i = 0 ; i < n ; i ++ ) if ( mat [ i ] [ i ] == mat [ i ] [ n - i - 1 ] ) res ++ ; return res ; } public static void main ( String args [ ] ) throws IOException { int mat [ ] [ ] = { { 1 , 2 , 3 } , { 4 , 5 , 6 } , { 7 , 8 , 9 } } ; System . out . println ( countCommon ( mat , 3 ) ) ; } }