text: Driver Code
code: int main ( ) { int arr [ ] = { 5 , 4 , 3 , 2 , 1 } ; int N = sizeof ( arr ) / sizeof ( arr [ 0 ] ) ; int X = 4 ; int res = binarySearch ( arr , N , X ) ; printf ( " ▁ % d ▁ " , res ) ; return 0 ; }