C # program to put all negative numbers before positive numbers
using System ; class GFG { static void rearrange ( int [ ] arr , int n ) { int j = 0 , temp ; for ( int i = 0 ; i < n ; i ++ ) { if ( arr [ i ] < 0 ) { temp = arr [ i ] ; arr [ i ] = arr [ j ] ; arr [ j ] = temp ; j ++ ; } } }