九度OnlineJudge之1464：Hello World for U

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.

#include    #include    #include     using namespace std;     int main(){      char str[81];      while(cin>>str)      {         int len = strlen(str);      int x = (len+2)/3;        for (int i=0;i
#include 
#include  
using namespace std; 
  int main(){   
 char str[81];   
 while(cin>>str)    
{      
 int len = strlen(str); 
   int x = (len+2)/3;   
   for (int i=0;i