8.05拼多多编程题（python）

第一题 方形输出
string=input()
lenth=len(string)
k=lenth//4
results=[]
for i in range(k+1):
    result=[]
    for j in range(k+1):
        result.append(" ")
    results.append(result)
flag=1
count=0
for i in range(lenth):
    if flag==1:
        results[0][i%k]=string[i]
        count=count+1
    if flag==2:
        results[i%k][k]=string[i]
        count=count+1
    if flag==3:
        results[k][k-i%k]=string[i]
        count=count+1
    if flag==4:
        results[k-i%k][0]=string[i]
        count=count+1
    if count==k:
        flag=flag+1
        count=0
for i in range(k+1):
    rstr=""
    for j in range(k+1):
        rstr=rstr+results[i][j]
    print(rstr)

第三题寻找最熟悉的陌生人 n,num=map(int,input().split())
friends=[]
for i in range(n):
    friend=list(map(int,input().split()))
    friends.append(friend)
maxcount=0
nums=-1
for i in range(n):
    if i!=num:
        if num in friends[i]:
            continue
        else:
            count=0
            for j in range(len(friends[num])):
                if friends[num][j] in friends[i]:
                    count=count+1
            if count>maxcount:
                maxcount=count
                nums=i
print(nums)

第二题数字分组 num=input()
lenth=len(num)
count=0
for i in range(1,lenth):
    num1=num[:i]
    num2=num[i:]
    if (num1[0]!='0' and num2[0]!='0') or (len(num1)==1 and num2[0]!='0') or (num1[0]!='0' and len(num2)==1) or (len(num1)==1 and len(num2)==1):
        count=count+1
    if (len(num1)!=1 and num1[len(num1)-1]!='0') and (num2[0]!='0' or len(num2)==1):
        if num1[0]=='0':
            count=count+1
        else:
            count=count+len(num1)-1
    if (num1[0]!='0' or len(num1)==1) and len(num2)!=1 and num2[len(num2)-1]!='0':
        if num2[0]=='0':
            count=count+1
        else:
            count=count+len(num2)-1
    if len(num1)!=1 and num1[len(num1)-1]!='0' and len(num2)!=1 and num2[len(num2)-1]!='0':
        if num1[0]=='0' and num2[0]=='0':
            count=count+1
        if num1[0]=='0' and num2[0]!='0':
            count=count+len(num2)-1
        if num1[0]!='0' and num2[0]=='0':
            count=count+len(num1)-1
        if num1[0]!='0' and num2[0]!='0':
             count=count+(len(num1)-1)*(len(num2)-1)
print(count)