<qiyuangong>070_Climbing_Stairs_2.py
def climbStairs( n):
    if n <= 1:
        return 1
    dp = [1] * 2
    for i in range(2, n + 1):
        dp[1], dp[0] = dp[1] + dp[0], dp[1]
    return dp[1]
def sample_funcname ( var_0 ) :
    if var_0 <= 1 :
        return 1
    var_3 = [ 1 ] * 2
    for var_5 in range ( 2 , var_0 + 1 ) :
        var_3 [ 1 ] , var_3 [ 0 ] = var_3 [ 1 ] + var_3 [ 0 ] , var_3 [ 1 ]
    return var_3 [ 1 ]
