def resetVector(x1, x2):
 size = len(x1)
 for i in range(size):
  x2[i] = x1[i]

def resetVector ( x1 , x2 ) : size = len ( x1 ) for i in range ( size ) : x2 [ i ] = x1 [ i ]
copies the contents of vector x1 into vector x2 .