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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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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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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***   **  * * ***  * ** 0;
}
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')
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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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}

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'
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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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***   **  * * *   *

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

    ** * * *  *** **   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;
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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++)
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** ** *******   *** * * *  
****  *  * * ****   *** ** **  **   * = '\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')
*  ***** ** *** **    *    *     ******** ****   *  *   ** * * *****  * ** * *    *     *** *  **   
 **  *** *  * ******* * *        *   **  *****    **     ****** * *   *   ** *  *   *   **     *  * ** ** ****  * *  *** * *  **** * ** *
 *  *            **   * *** * ** *   **  * *   *    **   ***  *  **** ****   ***   * *  *  **  *  ***** *** *   *  * 
 ** *  *  * *****   *   *   **   * * **** *  *  * *  *   *** ** ** *****  *  ** if(a[i]>='A' && a[i]<='Z')
 **  ****** * **** ** ***  *        ** ***** * ***  * **  ******  *   * * *   * ****  ***  ** *** ** * 
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*   * **   *** **  * *   ** ** **   *** ** ***  
* ***    *** * ****    *   ***    *** *  * * ** ** *** *  *   ** *      ***  *
}
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