1031 Hello World for U (20 分)
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Given any string of N (≥) 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 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
模拟一下
1 #include <bits/stdc++.h> 2 3 using namespace std; 4 string s; 5 6 int main() 7 cin >> s; 8 int len = s.length() + 2; 9 int an = len/3; 10 int ans = s.length() - an*2; 11 int left = 0, right = s.length() -1; 12 for(int i = 1; i < an; i++) 13 cout <<s[left++]; 14 for(int j = 0; j < ans; j++) 15 cout <<" "; 16 cout <<s[right--]<<endl; 17 18 for(int i = left; i <= right; i++) 19 cout <<s[i]; 20 21 cout << endl; 22 return 0; 23
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