1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
19.1k 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 | 19.1k 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:104.23.197.65
©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 | 13k 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 | 12.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users