(fly)1919: 蓝桥杯算法提高VIP-新建Microsoft Word文档(python)

解题思路:

注意事项:

参考代码:

def ij(ls):
    if ls==[]:
        ls.append(1)
    else:
        for i in range(1,max(ls)+2):
            if i not in ls:
                ls.append(i)
                break
n=int(input())
ls=[]
for i in range(1,n+1):
    w=list(map(str,input().split()))
    if w[0]=='New':
        ij(ls)
        print(ls[-1])
    if w[0]=='Delete':
        if int(w[1]) in ls:
            ls.remove(int(w[1]))
            print('Successful')
        else:
            print('Failed')