Python 求解组合问题，python求解组合,[Python]代码de

Python 求解组合问题，python求解组合,[Python]代码de

[Python]代码

def perm(n,m,current,lists=[]):       if m == len(lists):           print ' '.join( map(str,lists))           return 1      sum = 0      for i in range(current,n+1):           if i not in lists:               sum+=perm(n,m,i+1,lists+[i])       return sum   n,m = [int(i) for i in raw_input().split()]   print perm(n,m,1)