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()
{
* * * ** * * * **      * a[100];
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    }
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}
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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];

** *   * * *    * ** * *   * * *   **  a * **** * *
 *** *  *  * ** *   ***  

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

* *  *** *  **    * **     *    ** * s);

 ** **** **  *   * * 0;
}
answered by (16 points)
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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
0 0
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'
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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];
 *  ***** *****  * *     *  *** **     *  *  (ch >= 'A' *******  * ch <= 'Z')
* *** **       ** ***   * * * ******    *    * *     * ***    * **  = s[c] + 32;
** * ** ****      **** * * * *  *    *  *  *** if (ch >= 'a' ** *   *  * ch *  *  'z')
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*  ****    ******* **    **  * *   ** * * 
** ** * * **      ** ** *

**   *  *    ***     * ** * *    *  * *  *     s);

** *  ****  **      * 0;
}
answered by (-140 points)
edited by
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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];
* *   *  ** ** * **** *  **  
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*  * *    *     {
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* *  ***    * *** *  *** * *  }
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*   *  * ** *** *   * * **  * *  {
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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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