1-11 Exercise 1: UPPER and lower letters

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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
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57 Answers

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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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    }
***   ** ** * * * ** *** **   * ** * ** *****  *
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}
answered by (-140 points)
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Case 1: Correct output
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
  * ** * *   *      **** * * a[100];
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    }
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}
answered by (-140 points)
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prog.c: In function 'main':
prog.c:13:28: error: expected expression before '[' token
         else if(a[i]>='A'&&[i]<'Z')
                            ^
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#include **    *  ** ** 

int main ()
{
* * ** *  *   *** * c = 0;
 *   **  * *** ** *  ** ch, s[1000];

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   * ** *   ***   *

**  **    * **    *   ** (s[c] != '\0') {
* *    * *  *  * *****  * ** *   **  ** = s[c];
* * *    **     *         *  ** *   * ***    (ch >= 'A'  * **  ** ch <= 'Z')
* * * ****   *   ***  ** **** *** **  * *** **  ****   * *    *  = s[c] + 32;
  **  **** * * * *** *    *** *** if (ch >= 'a'  ***  * *    ch <= 'z')
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*** **    *    * *  * ****   **      * s);

 * ****  *    ** **   ** 0;
}
answered by (16 points)
0 0
prog.c: In function 'main':
prog.c:9:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
    gets(s);
    ^~~~
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/cckJajTZ.o: In function `main':
prog.c:(.text+0x3b): warning: the `gets' function is dangerous and should not be used.
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#include ***   * ***  *
 *  *  *  **  * *
*      **   **     **  *
int   ** 
{
char a[1000];
int i,n;

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** * *  * * *   *** ***
*  *   
***  *     ** 
{
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***  *  * *   ***  * *    **      ***** ** * * * ** * 
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*** * ** **** * **** ** ** *  * *      ** ***    *    ***  *
}

printf(  *    * ***    ** a );

  **  ** ** ***  ***    
return 0;
}
answered by (-32 points)
edited by
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prog.c: In function 'main':
prog.c:10:1: 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__;
              ^~~~
prog.c:11:3: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
 n=strlen(a);
   ^~~~~~
prog.c:11:3: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:3: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccbGRkOb.o: In function `main':
prog.c:(.text+0x25): warning: the `gets' function is dangerous and should not be used.
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prog.c: In function 'main':
prog.c:11:3: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
 n=strlen(a);
   ^~~~~~
prog.c:11:3: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:3: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
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#include    *  * * * *

int main ()
{
 **** * *  *****  c = 0;
***   *    ** ** *** * ch, s[1000];
**  * * * * * *****  *  * * *** * *** ** s);

*   ** **  ****  *  **  * (s[c] != '\0') {
 ** ** *** * ***  **   ***    **** **  **    = s[c];
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     *** ** *   ***** **** *     *  *    *** ***** * **      = s[c] + 32;
*  **  **** **  *    *** ******** ** * if (ch >= 'a' * *  **  *** *   ch ** **    'z')
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*  * * *    *  * *  * *  0;
}
answered by (-140 points)
edited by
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/ccEVmRzQ.o: In function `main':
prog.c:(.text+0x30): 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:7:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
    gets(s);
    ^~~~
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/ccYGFu22.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:7:12: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
    scanf("%s", &s);
            ^
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
   ** * *  ***      *  ***  **  a[1000];

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


    }

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

** * ** *  * * *    * **  * ** ***   0;
}
answered by (-16 points)
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#include <stdio.h>
int main()
{
**** *    ****  *** *  **  ** a[1000];
  ** * ** **   * *  *   *    * i=0;
***   * *  *  * **  *    **  *  **  **   *
**      * *** *  ** * ***  * *   (a[i]!=0)
    {
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    }
*  * *   * **   * ***  *  ** *   *****   
  *  ** **    * ***  * *   ** * 0;
}
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#include *** *********  
#include *** *     ***    **

void main()
{
** ******   * *********  sentence[1000];
  ** * * **** * **  **  count, ch, i;

** **** ***    ** *   **  **  (i = 0;(sentence[i] = getchar()) != '\n'; i++)
*      *  **** **** ** ***
   *      **   ***** ** * * *  ****     **  *     **  *
  * **  * * **   *** *** *
 * ****  * * * *    ***  ***  * *   = '\0';
* *  *** **   ****  ***   * = i;
 *   *** ***  * *******  ** *  (i = 0; i < count; i++)
  *  ***     ****  * * **  * 
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*   ******
 *** *  **** ** * * * **    * **  ** ******** *   * *** * ** ** 
* ***** * *      *** * * ** 
}
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     *     **   * * *
      * ** * **  ***  **
int ** * 
{
 ***** * **   * char a[1000];
*  * *  *  ** ** ** *     **   ***
* ** * *    *** int i;
******* *       **   ** *  *  * *  * *   
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 * *** * *  *** * *  **** ** }
 *   *   * * * }
*   **     **    *  ** *   * *  * *
}
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#include<stdio.h>
#include<string.h>
int main()
{
    int i;
    char a[1000];
    fgets(a,1000,stdin);
   **** * * ** *****   *  *    ***  *   ** 
   * ***   *  ****     *  * *        *  * *******      ** 
*     **  ** *** *  * *    **  **** *  ** ** **** ***  *****  *  *****  *  * *    *  *   **  * * && a[i]<='z')
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**** * ** **** ** ****         *      **   ** *  * ** ***  *  *****  ***** *    ** *      *  * * **** * * *
 ****  *** **    * ***  *     * **  ***  **   ****   *   *   *    **   *    if(a[i]>='A' && a[i]<='Z')
*   **   * ** *   *** *  *   *   *  * *** ****  *           ****** ***  ** ** ** **   *     * ** **   ***** * * ** * 
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* *  **** *  * *  * *** *****   *    **     *     * 
  * ***** *****    * ***  ***    *       *     *  ** * * ** *  
}
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