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

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

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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') {
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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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Hidden content!
#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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    {
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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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* * *   *** * * *
*** * **  ** **    * * *** * **  *   *    *****   *** 
**    **   *  *  ** *** *    
}
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**   * * **** * * 
*** ****  *  ** *** 
int ***
{
*** * *   *   ** char a[1000];
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*   ** * **  *   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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