Driver code
public static void Main ( ) { int [ ] arr = { 2 , 3 , 4 , 10 , 40 } ; int n = arr . Length ; int x = 10 ; int result = exponentialSearch ( arr , n , x ) ; if ( result == - 1 ) Console . Write ( " Element ▁ is ▁ not ▁ present ▁ in ▁ array " ) ; else Console . Write ( " Element ▁ is ▁ present ▁ at ▁ index ▁ " + result ) ; } }