1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
13.8k views

Write a program that reads strings of up to 1000 characters continuously and displays them, after replacing the lower letters with upper letters and vice versa.

寫一個程式 輸入一個字串(最多1000)  把小寫轉大寫大寫轉小寫

Example input:

With the rise in GLOBAL warming and increasing POLLUTION levels, it is becoming essential to find a viable alternative to the internal combustion engine petrol powered CAR.

Example output:

wITH THE RISE IN global WARMING AND INCREASING pollution LEVELS, IT IS BECOMING ESSENTIAL TO FIND A VIABLE ALTERNATIVE TO THE INTERNAL COMBUSTION ENGINE PETROL POWERED car.
[Exercise] Coding (C) - asked in Chapter 13: Strings
ID: 41431 - Available when: Unlimited - Due to: Unlimited
edited by | 13.8k views

57 Answers

0 like 0 dislike 
Hidden content!
#include "stdio.h"

int main()

{

 ** ** **   * * *        * *   * ** ****   **   ch[1000]={0};

 * *** * ****    **     * * * **    * *** *  ** i;

 *  ***** ** ***  * * **   * *   *   * * **  *  ** **   

    **  **  ***  *** * ****  *** **** ***   ** &ch);

* ** ***** ** **  *  *    * * * * * *  **     *    *  *  *

  * ** * *  * ***  ** *  *  * *** ***** **  ** *** ***    * *      ** *      **  * && ch[i]<='z')

*  *  ** ** ** ** *  * *  ** * *   *** *********        * *** ** ****   * *  **  **  ****  ** **  

***    *  ***     *** *** ** ******   *    *    *** **    *** if(ch[i]>='A' && ch[i]<='Z')

***  * * *  *   **  * **** *   **  ** **  ***  ** ** * *  * * *  ** ***** * **    ***  ***

 * *** *    *   **  *    **  *    **** * ***    *** ***  

*   *** *******  ** * * ** *  ***   * **  ** * ***



}
answered by (-284 points)
0 0
prog.c: In function 'main':
prog.c:11:14: warning: zero-length gnu_printf format string [-Wformat-zero-length]
       printf("");
              ^~
prog.c:13:15: warning: format '%[^
   ' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%[^\n]", &ch);
               ^
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>
int read_line(char str[], int n)
{
int ch, i = 0;
while ((ch = getchar()) != '\n')
if (i < n)
str[i++] = ch;
str[i] = '\0'; /* terminates string */
return i;
}
int write_line(char str[])
{
***  ******  ****   **    *** i=0;
*  * **     **    **** * *  ****** *
  *   **      *****    *    *  ***** *  ****   **    **   ** **    **    ************** **  *       * * **


*  *  *   *    * *    ***  *  ** ***** *** **  *** * 
* * **    *     *      *   i;
}
int main()
{
   * *   ** *  * * **   **  str[1000];
  **    **   ** *  *  *** i;
***  * ****     * * **   *  *** *     *  
*   **  ***  *    *  * **  *     *****  **  *****  ** 
    {
*****    * ***   *  *****  *  *  ** * ** ***   **** *** *  ****    *   * *****  ** **         *****  
  * **  * * * ** * ** ***     **  *   * * **    *    **** 
 * ** * * ****  *  * **      *** **  ** *** *    * ***** **  **   * *   ** *          **
*** *** *    ** * ** ** * * ***** *  * ** ***      *  
***  *   *  *   *****   ***   ** ** *    ** * **    if  *   *   * * * * *    * ********   *
***** **  *   * * **  **   * * ** * * ** ** ***  *****
* *      * **   * *  *****  ** ** *****   **   *** ***  * * ** * ***** *   * * 
 ***     * * ***** *    ******   *  ** **  ** **  ***  
******  ** **  * **  *   * 
* *  ***  * *  * ** ***  ***   **

     ****   **  ***     **   * 0;
}
answered by (-196 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{

*** **  *  *    *  * * *   *  i;
*** *      * **    *  * * * str1[1000],str2[1000]={0};
  ****    *  *   **  ****** **  ** ***** a sentence to convert upper to lower and vice versa\n");
   *   ***   * ***   *** **    *   **
 *  ** *  **  * *****   * * **  * * *

  **  **  * * ***  ** *     ****     * * ******* ** 
    *    ****    * *  * * * ***
* ******  ***    **   ***** **  ** ** **  **** *     **** ** *  &&str1[i]<='z')
  * ***   **  *         *  **** *** ***      * * ****  
***  ***  * * ****** *  *   * ***** *** *** *** * *  *****   * *** * *  * **      ***  ***  
  ** * * * ********      *      **  **   *   * *  
 *** *  ***  ** *  *  **  * *   * ****  **       ****** *   **  **** * * ****    ******   * ** **** 
    * **** *  *  ****  *    *** *** **** * *   *****   *  * *  ** *     **  *** **  *   ** *       * *   
*** *   ***   **  * *****  ***
* *    ****     **** ***   * *** 
** ***    ** ***  **  *   ** **   *** *  * * *** *      *   *
 **** *** *   * **** **** **  * 
}
printf("%s",str2);
return 0;
}
answered by (-167 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<stdlib.h>
   *  ***   **  ****
int main()
{
   ***** ** *  *** *** **    *** *  S[5000];
***  *  * *   **  *  ******* *   ** 5000, stdin);

 ***    *    **** **   * a,N=strlen(S); ** ** *** ****  *   * *
* **  **   * *   **** **  * ** *  *   * ** * 
 * ****  *   * ******  ***** * **      * ** *    *** ** ****** *  *  *  && S[a]<='z' )  //大小寫轉換
 ***  * **   *  * ** *  **  ***    * * *    *     * * ** **  ****   *** ** *  * ***   *   *    * * *  * *  
 ** ***** ***  ** * *    * *     ***** ** ****** ** *  * * if *****    *  *  *  ****  S[a]<='Z')
    **  ***  * ** *   ** ****     ** *   *  *   ** * * ** **  ***  ***      **     * ** ****   *     * ** **  * ****  
      **  ** **  * **** *    *  *  **** ** *** * ***
*     **  *****     * ** ** * **  * *****    ** *  ****** ****  *** ****       **** ** *****  ** ***  *  

 return 0;
}
answered by (-127 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>
int read_line(char str[], int n)
{
int ch, i = 0;
while ((ch = getchar()) != '\n')
if (i < n)
str[i++] = ch;
str[i] = '\0'; /* terminates string */
return i;
}
int main()
{
      *  ***  **  *  * *        str[1000];
*   * * *** * * ***  *** *   i,a,b;
* *** *     **** *** * ** ***** * ** ** 
****   **    *  * ** * ******   * ** * * * * *
 *   * ****  ***  ** 
*  *     *   **  ***       **   * *   * ** *  *    *  ** *  *  *** *  * *  **** * *    **   
* *****   ***  ***  ****  *  ****  * **         **** *
*     **   *   * ** **  *  * * * **  **    *   **      ** * *** * **** * * ** * **    *** 
* *** * *   **  * *  **** *  **** * ***  ** **  *   **     *
   **      ** * ***********    *****     **** ** ****        if  * *  * *  **   *** **   *  ****   *  * 
 *  **     ******    * *** *  * *   *   ** * * *****  **  
   * ** *** ******* *  *****   * **** **  *** *   ** * * **   ***  * * * * *   * 
 *  *   ** * ***   *****  ******     *    *** *  **   ** * **
    ****    *** *****  * 
*********  * * * ** **   *  **    *
  ** ** ** ** * ** ***  ***** **  0;
}
answered by (-196 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>
int read_line(char str[], int n)
{
int ch, i = 0;
while ((ch = getchar()) != '\n')
if (i < n)
str[i++] = ch;
str[i] = '\0'; /* terminates string */
return i;
}
int main()
{
** *  ** *** **** * * * ***  * *  str[100];
 **    *** ** *  * ***  *   *     i,a,b;
  *  **** * * *   * * ** **  ******   **** *
*  * *  ***   *   *  **    ****  *   * *      
** ** *  * **   ** *  * ** *
        * *** ** *** ** *   *   * * * *   **    ** *  ** **   *  ***  *  *   *  *** *   *  ** 
*      * **  * ** *    *  *    * ***  * *** *  *  * * *
* * ****  **  * *  * **** *****  ** *    *** **  *  **** ***** * *  ** * *** *       *
****  ** **  **    **  **     *   * **    ** *   *   *
    *** *   * * **  ***  *  *      * *** ***    ******   if * *  **  * *    *** *** *  ******   
**  ** ***    *    **** *     **    * ** ***  * *  *** * * **
  *****  *** *     **** *** * * * ** ***  *  *             * *****  *    *** *
 ****       ***  *   *  ***   **** * ****  *  ** * ***   
 *     ****     ** *  * * *
*  *     **   ** *** *** *   *   
 **      *   *     * ***** *****  0;
}
answered by (-196 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
    char a[1000];
    int i;
** * ** ** *  ** * *    ***  *  
  **********  * *   **** **  *  *     *  *  *  
*      *    **** ** ** ** **  *  *  ** ** *  * **   *******  * * *         * ****** ****** **
****  ** *   ****   * ****  **  * ***** * * *     * **************   ** * **    *******
**  *  ****    *  ****  ******    * **** **     *     *   * * * * *****    * * ***    *  *  *
****** * ** ***  ***** ***    ** *  *  *  **   ***       *  *****  *  * **   **   ** ** * *
   *** *** *** * *  * * *** 
 **   * * * *  **         * *  0;
}
answered by (-284 points)
0 0
prog.c: In function 'main':
prog.c:6:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(a);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/tmp/cckMIBeA.o: In function `main':
prog.c:(.text+0x25): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>

int main()
{
  *       * **  *** * ** * str[100];
    int i,a,b;
*  ** * ** ****  * * * * ******* 
***  * *    ***   ********** **   * **   **  * **  
    {
**** *  ****** * *    * ** ****   *  * * *** ** * *   *** **  * * ** ***  *  *    * * ** ***
** **** **       * ***  **** *** **   *  * *  ** **  *
**  ****  * ****    *** **  *         *** ***  *  *   *  **   *   * ******* **      **** **    
*  *   *  *   * *  **    *  **    ****   **
** * ***      *************       *  ****** **  if  ***   *   *****  ***  ****  *
*** * * **** *  * ***   *** ** ** *    *** **** *   **
   *****    * *     **  *** ***** *   * ** *   * *    *  * **  *  ****** * *** * * *    ***
 *   *  **   *  **  * *    ** ** * ***    *     * *  **    
    }
** * * * *  **     * *     ******
   *  ** **    *   ** * ** ** *  0;
}
answered by (-196 points)
0 0
prog.c: In function 'main':
prog.c:8:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(str);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/tmp/cc7O3tJu.o: In function `main':
prog.c:(.text+0x23): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
    char str[100];
    int i,a,b;
* *   ****  *** *****   *   *** 
 ** **  * **   *** *****   * ***  **  *  *** *** *
    {
*     **  *      * * *    *    *     **      *** * * **  * * **   ** ****    **     **  *  *  
* * ***** * ***** ***    *  *    ***   ****** * ** *  ** 
* ** ***  ** ** * **  *  ** ** *  ***       *****  ** ********   * * * *       * **
   * *   *   * * *  ** **  ***  ** ** * ***  *** * 
** ****** * ********    ***   *  * *  ** ****  ****     if *  *     *  * * **  * *  ***   * ** 
   ** * * ****** **    * **  *** * * *    *** ** * ** **   
*  * **** ** ** ******  * ** **** ** ** ** *    * *  * * * *    *  *  *   * **  * *  **** * 
  **  **** *** **  ********  * ** ** *   * ** *  * *   * *
    }
  *  * * *****   *  ** *  *    *   **
** *      *    * **   * *** 0;
}
answered by (-196 points)
0 0
prog.c: In function 'main':
prog.c:6:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(str);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
prog.c:7:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(str);i++)
               ^~~~~~
prog.c:7:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:7:15: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccX2gnMW.o: In function `main':
prog.c:(.text+0x23): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
    char str[100];
    int i,a,b;
**** *   **  ** * **  ** *   *    * * * 
*** **   ***** **** ****  * * *  *  * * * *      ***  
    {
  **  *    *****    *   *    *   ** * *  * ** * *  *  ****       ***** ** *     *  * **  
*   * * ** ****  ** *  ***   ****    *   *    *   
* **   ******    * ** *  * * * ** *  *******  *  *  **   *** ** ***  * * *** * * ** * * 
  * *    * **  *  *  *   **  ***** *   **   ***
 *  ****** ***   *  ** ***   ******   *  **  ****  ** * if * ***  * * **   * **  * **   *  *  *
 *   ***    *  *   *    * **** *  * *  ****    **  **
*  **   *  *  *   *  **** *    ** * **   * * *** *  * ** *      *     *   ***  *  *
**  **      * ***  *  **************   ***   * ****  ** **
    }
*  ********  * ** * * ** ** *
   * *  **  *** **** **     *   0;
}
answered by (-196 points)
0 0
prog.c: In function 'main':
prog.c:6:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(str);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
prog.c:7:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(str);i++)
               ^~~~~~
prog.c:7:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:7:15: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccxAMu40.o: In function `main':
prog.c:(.text+0x23): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.130.63
©2016-2025

Related questions

0 like 0 dislike
27 answers
1-11 Exercise 3: Prefix of a string
[Exercise] Coding (C) - asked Jan 11, 2018 in Chapter 13: Strings by thopd (12.1k points)
ID: 41439 - Available when: Unlimited - Due to: Unlimited | 9.6k views
0 like 0 dislike
29 answers
1-11 Exercise 2: Reverse a sentence
[Exercise] Coding (C) - asked Jan 11, 2018 in Chapter 13: Strings by thopd (12.1k points)
ID: 41436 - Available when: Unlimited - Due to: Unlimited | 9.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users