【PAT】【Advanced Level】1031. Hello World for U (20)
2017-07-23 15:15
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1031. Hello World for U (20)
时间限制400 ms
内存限制
65536 kB
代码长度限制
16000 B
判题程序
Standard
作者
CHEN, Yue
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.
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
原题链接:
https://www.patest.cn/contests/pat-a-practise/1031
思路:
按要求求出N1N2N3的值即可,加2除三得到N1N3,总数减去N1N3得到N2。
CODE:
#include<iostream> #include<cstring> #include<string> using namespace std; int main() { string a; cin>>a; int n=a.length(); int n1=(n+2)/3-1; int n3=n1; int n2=n-n1-n3; //cout<<n1<<" "<<n2<<" "<<n3<<endl; for (int i=0;i<n1;i++) { cout<<a[i]; for (int j=2;j<n2;j++) cout<<" "; cout<<a[a.length()-1-i]; cout<<endl; } for (int i=0;i<n2;i++) cout<<a[n1+i]; return 0; }
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