text: Driver Code
code: int main ( ) { struct Node arr [ ] = { { 5 , 7 , 2 } , { 4 , 6 , 1 } , { 1 , 5 , 2 } , { 6 , 5 , 1 } } ; int N = sizeof ( arr ) / sizeof ( arr [ 0 ] ) ; isPossible ( arr , N ) ; return 0 ; }