L1-039 古风排版
中国的古人写文字，是从右向左竖向排版的。本题就请你编写程序，把一段文字按古风排版。
输入格式：
输入在第一行给出一个正整数N（<100），是每一列的字符数。第二行给出一个长度不超过 1000 的非空字符串，以回车结束。
输出格式：
按古风格式排版给定的字符串，每列N个字符（除了最后一列可能不足N个）。
输入样例：
tex
4
This is a test case4
This is a test case输出样例：
tex
asa T
st ih
e tsi
ce sasa T
st ih
e tsi
ce sSolution：
java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
int n = Integer.parseInt(in.readLine());
String s = in.readLine();
int length = s.length();
int size = (int) Math.ceil(length / (double) n);
String[] sentence = new String[size];
int index = 0;
for (int i = 0; i < size; i++) {
sentence[i] = s.substring(index, Math.min(index += n, length));
}
int t = sentence[sentence.length - 1].length();
if (t < n) {
StringBuilder sb = new StringBuilder(sentence[sentence.length - 1]);
for (int i = 0; i < n - t; i++) {
sb.append(" ");
}
sentence[sentence.length - 1] = sb.toString();
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < n; i++) {
if (i > 0) sb.append("\n");
for (int j = sentence.length - 1; j >= 0; j--) {
sb.append(sentence[j].charAt(i));
}
}
System.out.println(sb);
}
}import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
int n = Integer.parseInt(in.readLine());
String s = in.readLine();
int length = s.length();
int size = (int) Math.ceil(length / (double) n);
String[] sentence = new String[size];
int index = 0;
for (int i = 0; i < size; i++) {
sentence[i] = s.substring(index, Math.min(index += n, length));
}
int t = sentence[sentence.length - 1].length();
if (t < n) {
StringBuilder sb = new StringBuilder(sentence[sentence.length - 1]);
for (int i = 0; i < n - t; i++) {
sb.append(" ");
}
sentence[sentence.length - 1] = sb.toString();
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < n; i++) {
if (i > 0) sb.append("\n");
for (int j = sentence.length - 1; j >= 0; j--) {
sb.append(sentence[j].charAt(i));
}
}
System.out.println(sb);
}
}