九度oj 1464 Hello World for U 2012年浙江大学计算机及软件工程研究生机试真题

题目1464：Hello World for U

时间限制：1 秒

内存限制：128 兆

特殊判题：否

提交：3872

解决：1082

题目描述：

Given any string of N (>=5) characters, you are asked to form the characters into the shape of U. For example, "helloworld" can be printed as:

h    d
e     l
l      r
lowo

That is, the characters must be printed in the original order, starting top-down from the left vertical line with n1 characters, then left to right along the bottom line with n2 characters, and finally bottom-up along the vertical line with n3 characters. And more, we would like U to be as squared as possible -- that is, it must be satisfied that n1 = n3 = max { k| k <= n2 for all 3 <= n2 <= N } with n1 + n2 + n3 - 2 = N.

输入：

There are multiple test cases.Each case contains one string with no less than 5 and no more than 80 characters in a line. The string contains no white space.

输出：

For each test case, print the input string in the shape of U as specified in the description.

样例输入：

helloworld!
ac.jobdu.com

样例输出：

h   !
e   d
l   l
lowor
a    m
c    o
.    c
jobdu.

来源：

2012年浙江大学计算机及软件工程研究生机试真题

分析：

 #include<iostream>
 #include<queue>
 #include<cstdio>
 #include<cstring>
 #include<cmath>
 #include<algorithm>
 using namespace std;
 int main(){
     string s;
     int n1,n3;
     while(cin>>s){
         int len=s.length()-;
         int n=len+;
         int nn=n+;
         while(nn%){
             nn--;
         }
         n1=nn/;
         //cout<<n1<<endl;
         n3=n-n1*+;
         int i=;
         //cout<<n3<<endl;
         for(;i<n1-;i++){
             cout<<s[i];
             int j=;
             for(;j<n3-;j++){
                 cout<<" ";
 
             }
             cout<<s[len-i]<<endl;
         }
         int k=i+n3;
         for(;i<k;i++){
             cout<<s[i];
         }
         cout<<endl;
     }
     return ;
 }