UVa 490 Rotating Sentences（旋转句子）_旋转句子490-优快云博客

本文链接：https://blog.youkuaiyun.com/mullerwch/article/details/9708109

本文介绍了一个程序设计案例，该程序能够将一系列输入的句子顺时针旋转90度进行显示。文章详细解释了输入输出的要求及样例，并提供了一段C语言实现代码。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Rotating Sentences

In ``Rotating Sentences,'' you are asked to rotate a series of input sentences 90 degrees clockwise. So instead of displaying the input sentences from left to right and top to bottom, your program will display them from top to bottom and right to left.

Input and Output

As input to your program, you will be given a maximum of 100 sentences, each not exceeding 100 characters long. Legal characters include: newline, space, any punctuation characters, digits, and lower case or upper case English letters. (NOTE: Tabs are not legal characters.)

The output of the program should have the last sentence printed out vertically in the leftmost column; the first sentence of the input would subsequently end up at the rightmost column.

Sample Input

Rene Decartes once said,
"I think, therefore I am."

Sample Output

"R
Ie
 n
te
h 
iD
ne
kc
,a
 r
tt
he
es
r
eo
fn
oc
re
e
 s
Ia
 i
ad
m,
.
"

题目大意：

将所输入的句子右转90°，将句子立起来。

注意：1.这里因为句子每行可能有空格，所以不能用scanf函数，所以使用gets()。 2.将句子旋转的时候，短句子输出完后要输出空格。

CODE:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char str[105][105];

int main(){
    int i = 0,j,k,t;
    int m = 0, max=-1, len;
    while(gets(str[m])){        /*读取句子，并记录句子数目和句子最长的长度*/
        len = strlen(str[m]);
        if(max<len) max = len;
        ++m;
    }

    for(i = 0; i<max; i++){
        for(j = m-1; j>=0; j--){
            if(i<strlen(str[j]))
                printf("%c", str[j][i]);
            else    printf(" ");
        }
        printf("\n");
    }
    return 0;
}


/*
参考数据：
INPUT(输入)：
"I think, therefore I am."
Rene Decartes once said,
"I think, therefore I am."
                 dssf          
Hello china!
God help those who help themselves.     //最后有5个空格

OUTPUT(输出):
GH "R"
oe IeI
dl  n 
 l tet
ho h h
e  iDi
lc nen
ph kck
 i ,a,
tn  r 
ha ttt
o! heh
s  ese
e  r r
   eoe
w  fnf
h  oco
o drer
  se e
h s s 
e fIaI
l   i 
p  ada
   m,m
t  . .
h  " "
e     
m     
s     
e     
l     
v     
e     
s     
.     
      
      
      
      
      
//空5行
*/