1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
20.7k 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 | 20.7k views

57 Answers

0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{
    int i;
    char a[1000];
** *  ***  ** * ***** **       *** *   *****  *    
    for(i=0;i<strlen(a);i++)
*   *  * *  ***  * ** * **** *  *      ** *      ** ** * **  *
*  ** * **** **    ** *  * *  *  ** *  * * ***     * **   ** *      * * * **  * *   **    **   ** *  && a[i]<='z')
* **  ****     ***       **  ** ** * **** **    *  * *** ** *  ** *  *****  *   **  * *** **  * *
* ***   **   ** ** * ***   *  ** * *  * * * * *  *     *  *  ** *  * * ***    * ** *** ** *   * **    **       *** *  * * ***** ***
**  ****     *    *  *   ** ** ** ***  **  *   *      * ****  ***    * *  *** * ** ** ** * *** **** **  *     
*      *  *  ****  **  *  * *   *  *** *  * *      * *  *    * *  * *** *  *** ***     *  if(a[i]>='A' && a[i]<='Z')
    *  *   **  *       ****    ********   *****   *  * *   **  ******  **** ** *  * *** **  *  **   * *** **
    *   *     * *  ** *** *   *    * ****  ******* **** *         ** *  ****     * * *** *  *  **  *   **  ** * * **      *** ****  ***  * ****  *** *
*   ***  ***** * *    ****           **         *       ** *  ** ** * * ** *** * **      **  *** ***** *
 * * **   * **   * *    *   *  **  **** * *** ***  * *** 
 **   *  * ***  * **  * *  * * *   * **  *  *  ***  **  **     ******** *   *** ** 
}
answered by (-301 points)
0 0
prog.c: In function 'main':
prog.c:7:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%s",&a);
             ^
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{
    char a[1000];
 *  ***    *     *  *  ** * * ***   ** * 
    int i=0,l1;
* *     **   ********* **  *   **  
  *  ** *  **  ***  * * *  * * ***** *
*** **     ** *   * *** ** * *   *  **  **   *  *   *      *  ** ** ****** *** ** * *** **** *
* ** * * * *** ** *  *   *   *  * *    *  ** **   ***   ***  * ***   
 * * **     *       ****** ** *** * ** ****** *    **   * *     ** * *  *  **   ** * **
 ***  *  *    ***   *   * **   *       * *   **  *  **  
*  **  ********* *    **  *   ****  *     *** **  **  **    if(a[i]>96&&a[i]<123){
 **  ******          ** ** *   *** ***  * ***** * * 
    * *     * *  *** ***** * ** ** ** ** *****  **** *   *  * * * *** ****  ****     *
  * *  *  *    ** ******         * ******** *   ***     *
***     ** **  * * ** **  * * ***   ****    ** * * * **   *** ***
 ***  ** *  * **    *  *     ***  *  *   **  * * * * *** *** * *******  *      * ** **   *   ** *
  **  **** *** **   * *    **  * * ***    **      * **  **
    }

}
answered by (-329 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 main()
{
** ***    ****   ***** ** ** string[1000];
**   *****  *      *  * **   * *  i=0;
*** *   ** *  ******        * *   **  * 
  *** *  * * ** * * *** *  **** **  ** 
    {
* ****  *** * * ***** * **** **** * ** ** ***  * **   * *     ** * && string[i]<='z')

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

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

*  *****   *** * *   *******  * * * ** ***  *  *  * *** ***** *  **** * * ** *     * = string[i] + 32;

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

 ** **  ** *   *  * * *    
**  *   *    * * *   **   **  **    **  **** **** ***
* * ***      * *** **** *   **  ** 
** **    **    *  **    * * ****** * ** ** * * *  *  **   
**** **  * *    *  *   * *** *
    * ** *  * ** * ** ** * **      **** * **  *    *  *  ** 
 *  ** ** * **   ***** ** *    *    0;
}
answered by (-323 points)
edited by
0 0
prog.c: In function 'main':
prog.c:7:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(string);
     ^~~~
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/ccuYke74.o: In function `main':
prog.c:(.text+0x2f): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(string);i++)
               ^~~~~~
prog.c:21:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:21:15: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(string);i++){
               ^~~~~~
prog.c:21:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:21:15: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(string);i++)
               ^~~~~~
prog.c:21:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:21:15: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c:24:5: error: expected '}' before 'else'
     else
     ^~~~
prog.c: At top level:
prog.c:26:5: error: expected identifier or '(' before 'return'
     return 0;
     ^~~~~~
prog.c:27:1: error: expected identifier or '(' before '}' token
 }
 ^
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:24:5: error: expected '}' before 'else'
     else
     ^~~~
prog.c: At top level:
prog.c:26:5: error: expected identifier or '(' before 'return'
     return 0;
     ^~~~~~
prog.c:27:1: error: expected identifier or '(' before '}' token
 }
 ^
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(string);i++)
               ^~~~~~
prog.c:21:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:21:15: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k 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>
   * * **     **    
int main(void)
{
*  ***  *  ** ***    *      *  *   str[1000];
 *** * *  * **** *   *   ** i,temp;
 *  * ****  ******* * *       *** *** ***
*  *  * *  * ****    * * ***   n = strlen(str);
  * ***  *** **  *  *  *   *         * ** *
* *  *  * *   **   *  *   * *
* *     * * * *** *  *** *   ******  *  **** * ** ** *  * * ** ** && str[i] <= 'z')
 * * *    **  ** ** * **  *** ***** ***    ****** *    * **** ***  * *     *  *    **   **  
***   ****  * * *** *** ** *    *    *****    *  * * * **  if(str[i]>='A' && str[i] <= 'Z')
  *    ** ** **  *  * **   ** **  * *  **  *        ** ***** * *    ** * **    *  * *
 ****** * * *  **  ** * *  **  *    *   * ** **   *  **
   * ** ** * ***   ****** * 
  ****** *  ******  *  ** * * * *   *  * ***  ***** **   ** * *  0;
}
answered by (-281 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>
#include <string.h>

int main()
{
*******  * **  ** *  ***    *** array[1000]={0};

  *** *  *  *     ***  *** * ***  i = 0;

  *  * **  *** *  * *    *****  1000, stdin);

* * **      **   * * ****  ***    len = strlen(array);

  * *  *  * *    * *   **** = 0; i < len; i++)
  * *  **   *   * ** ****** * 
* * * * *  *    ***  *    *  ***  ** **  ***  * ***** *  ** >= ****** *   *   * <= 'Z'))
   *  *  *** * *  **   ******* *   *** *    * *    * *** 
 ***** * * *   **    *   * * **   ****  ****   * *     * *    *** * *  *** ** ** * *  **   += 32;
*  *       ** **** ***  *** * ***  * * ****   ***  *
   ** ****   **  ** **   * **** ** **     * * *** * * * if ((array[i] >= ****** **   ***  ** <= 'z'))
 ****** **  ** ***  ***    *  **  **    *    *      ** 
****  ***   * ** *** ** * *****  ***   *** **  *  **  **   **  * *****      ** *     ** *  ** -= 32;
 ** * *   ** **  * ** ** **** *** **** ***  *  ** **
***  ** **    * ***  * * * * ** *  ****   * ***    **    *** *** ** *** * *
* *    ****  **** * ** * **       *
* *** **  * **** * * ***   0;
}
answered by (-284 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>
#include <string.h>

int main()
{
** *   ***  ***** ** ***  *  *   array[1000]={0};

 ***  ***    ** ** *** *  *  i = 0;

* * *    ** * *  * *    **   ** 1000, stdin);

 ******** * * * **   *** *** *  len = strlen(array);

**  *  *   ** *  * * *   *** ** * = 0; i < len; i++)
** ***  *       * * **   ***   
* *  **  ****     *** *  ***** * *  * *   *  *   **  * *         >= *  **     * **** * <= 'Z'))
* * * *     *****     *      *****  **   * *   ***  
*   *    ****   * **       * *** ***    * *** *  *     *** ** *** * ***  *** ***   ******  += 32;
 ***       **  **  * * *  * ***  ***** ** * ** *** *   ****
 * *  ****  *  *  **    *  *** ******    *   ** * ** *  **** **** * if ((array[i] >=    * ***   * ****** **   <= 'z'))
** * * *  *    ***    * * ** *** *  * ****  *   *****
*  ****   **** *  **  *****  ** *  ***   * * ** *   *  ******** *  * *   ***** * **  * *   -= 32;
** ** *  *  *   **  * ***   ***   *  **   **  * * **    
* ***    ** ****  * *  * ***  * ***** * *  * *  *      *  ****** * * ****   ** ***
*  *   * ** * * ** ******* 
   ***  *** ********** *   *** * * * 0;
}
answered by (-108 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 <studlib.h>
#include <string.h>

int main()
{
* *  **** *  **  ****     * ** *
* ***** *****    *  *** ****** * array[1000]={0};
   **** *** * **    ** ***  i = 0;
 *** *  **  ****  **  **   * * * 1000, stdin);
 * * ** **    *   * *   **   *  len = strlen(array);
*  ** *** ** * ********   ** ****  ** i<len; i++) 
  ***      **      ** *** 
   * **** * * *   *** ** ********** * *  *  ***  *   * *
 *** * ** * *   *   ** *  * * ** ***  * * * ** ******   *** ** >=  **  **  * * **  <= 'Z'))
*   *  * ****  ** ***  * *    ** **  *  *   **** *  * * 
* *****   * *** ****  *  ***  * ****    **  *     *  *      **   ** ***   *    += 32;
**** ***** * **   * ** * ** *** *** *  *** * * * 
*    ***  *  * * *   *** ** * *    * * * ***  * *   ***** 
** *      ** *  *****  ** * ** *     **** ***  ** if((array[i] >= 'a')&&(array[i] <= 'z'))
** **** ** **  ***  * *****   *    * * ****    * **  *    ** *
   * ** * *  *     **   **      * **  ** **  **    * ** *   *  * * **  **     ** **    -= 32;
 ** * * ***  *   * **    **  ***  *  *      **   ** *** * 
*  **** *  ** * ****   ****  **** *   ******  *** **  **   * **     **** *  *****  * 
**** *** **  ** *   *  *   *
   *******   ***  ***   * *    **   0;
}
answered by (-284 points)
0 0
prog.c:2:21: fatal error: studlib.h: No such file or directory
 #include <studlib.h>
                     ^
compilation terminated.
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>

int main(){
**   *  * ***  *   *  *  * * * ** str1[1000];
**  **   ** *  ** *** ** * ***  a,b,c,d;
* *  * ***    ***   ****  *******  *    ** 
  *   * *******   *   ** *   * **  
     *   *** **   ** **       * ****** ***
**    *    ***  *  *   **      *   ***  * * * ********   * *** ***** **   &&str1[a]<='Z')
**    ** ***  ** *  ***** ** ****    **  *  * **  **** *  *  *    *  * **   * **  **
 ***  ***  * ** ** * * *  **** *   ** *  *** ***** **** *** * ** ******** ****** ***** *   *
    * * ** * *  **  *     ** ** *******    * ** *  **     * **  *   * * *   * *  *******  * *** * ***
    }
*    *  *   **  * ** * *   ********     *****  ** ****   
*   ****  ***    **   * **       0;
}
answered by (-498 points)
edited by
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k 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 main()
{
*   *** *  ****  * *****   str[1000];
    int i;
  ** **** * * * *  ** ** *****  *   ** *    
* * *  ***** * ****  ***** *  ** **   *   * ** * * 
    {
 *    *  * * * ***  ***   *      *** ** **   * * *  ** *  * ** *   *****  * *    *
* * * *  ********  **** * ***** *   *** *  ***  **
 * * **  *** *   *  *****  **** ** *  *  * *  ***     *  *  ** **   ****     ***  * * *
**   * ***      ***   ** *   *  **** * * **    *  * * **
*  *   ** * * *  *   *     **  * *  * ***** * **  * *   **** if  *  *  * **** *  *    **  **   *
 * **  *  **** ***    *  **  **    ** * * * *  *****   
 **  *** * * ***    ***       ** *  ** *** *  * ** * * *  * * * * *  * ***    *** **  * *
  ****  ***  * ***  *   **  **** *  * * ** * * ***    *
    }
  *****  * *   *   **    *   **   * *** *** **    ****

 ***   ** ***  *  ** * ** **     0;
}
answered by (-196 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 main()
{
    char a[1000],b[1000];
    int i,j,len;
  **** **    *  *  ** *    ** *** ***  *    
    {
 *    ** * *  **         * *    ** ***   *     *  * *  
    }
** *** ** ** *** ** ******* * ******    
   *   * * *     ** ***** *********
   **** * **     * * *  ** *** *   *  ***** *   
    {
*  * * ** * * *** *  * ** ***  * * * * * ***   *  **  *   ** **  **   * * *
 * ** * *       ***** *   *  **  * * ** * * ** *  **   ** 
 ***** ****   *  * * *  **  * ** * ****   *  **  * *  *  **  ****  ***  ** * **** *  ** * 
   **  *   ***** ***  *    * *  * * **** ** ****  ** **** *    *** **  *****  ** 
*   ***     **** ** * **** ** *  *  **    ** **  ** * * ** ** * *  **** **   *  *    **     *   ****  * **    ****  ** * *  *  ***
*    *  **   **  **   * *   * **  * ** *** ****** *  * ***** *  *    *  * *   *** ** * 
**   *****   *   * **** *  ****** **  *    ** * * *     *  *  *    * * *    *  if(a[i]==97+j)
   * * ** **     *** *  ** * * *     * **  ** ***     *   *    *  *   ** **** **   
 *   *  *  *    ** ** * * *******   *******   *  * **  ***    *    ******* ** **** * *** * **   **  *  ** *       **
 **     ** * ****** *        *   *  **   ***  * ******  **** ***   *  ** ** *
**** *** **  *     * **   ** *** * * * *  ***    
*** **  *    ****   ** *   ** **         *** *   ***   *   * **** *  *** ****   
    }
}
answered by (-255 points)
0 0
prog.c: In function 'main':
prog.c:11:9: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     len=strlen(a);
         ^~~~~~
prog.c:11:9: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:9: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:162.159.115.9
©2016-2026

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 | 14.4k 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 | 13.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users