1031 Hello World for U (20分)

 

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 n​1​​ characters, then left to right along the bottom line with n​2​​ characters, and finally bottom-up along the vertical line with n​3​​ characters. And more, we would like U to be as squared as possible -- that is, it must be satisfied that n​1​​=n​3​​=max { k | k≤n​2​​ for all 3≤n​2​​≤N } with n​1​​+n​2​​+n​3​​−2=N.

Input Specification:

Each input file contains one test case. 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.

Output Specification:

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

Sample Input:

helloworld!

Sample Output:

h ! e d l l lowor #include<bits/stdc++.h> using namespace std; int main() { string s; cin >> s; int Length = s.length(); int H = int((Length + 2) / 3); int L = Length+2 - 2 * H; string q = ""; for (int i = 0; i < L - 2; i++) { q += " "; } for (int i = 0; i < H - 1; i++) { cout << s[i] << q << s[Length-1-i]<<endl; } for (int i = H - 1; i < H + L-1 ; i++) { cout << s[i]; } }