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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Case 1: Correct output
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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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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];
** **  * *   *  **  ********** **   *** (ch >= 'A'  * **  ch <= 'Z')
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 * *****   ** ** *  * *  * *  ***  *   **  *   if (ch >= 'a'    * ***** ch <= 'z')
***  *  **   * ****      **     ** * *  ** **   ** ** ****  = s[c] - 32;
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** *  * * ***   ** *      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 *** * * **** **
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int  * ** 
{
char a[1000];
int i,n;

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}

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

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return 0;
}
answered by (-32 points)
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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 1: Correct output
Case 2: Correct output
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#include    * ****      

int main ()
{
**      *     *** c = 0;
**   *  ** *  ******  ** ch, s[1000];
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***** ***  * * **   *   *  0;
}
answered by (-140 points)
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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)
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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()
{
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  ** * ** *     *****  *  *  count, ch, i;

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*** *  * *  ** ** ** *  ** *
*   ** * *     *   * * **  * * = '\0';
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 * *  *   **  * 
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** ** *     ***  *  ***  * 
}
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*  * *   **  *  * *   **
  ***** * **  * ** *  * *
int *  
{
* * *   *   *  char a[1000];
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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);
  **    * **    * * **     **  **   **    * **
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** *  **    ** ***   ***** **   ** *** *  * *   * *    ***** *** *     **    ****   **    * *  * && a[i]<='z')
 * ** * ** * *  ** ***    ******* **  * *  *  ***  *   * * * *  **** **   * *** * *  *     * ** **  ** * *
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 **   *  *  ***   *     *  *      * ****   *****  **** **    *  ** * ** **     * * ***   * *** *  *  
****  ****** * *  * * *** ** *  ** * **      ****  ***** ***  ** **    ** ****** *  ***   if(a[i]>='A' && a[i]<='Z')
*** ***  **         *   ** *     * **  * ***   ***** *****   *  **  ***   **     ** *    ***   *  **  ***  ***
 ** ***   * **        ******  ***********   * * *  **  ** **  * * *** *** **  ***** * * ** ** *   ** *** *** ** * *    * **  *   *** **  *    **  **  * ** 
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*       **** * *******  ****** ****  ***  ** * ***  **  *  **
*** **   ***  *  * * *      ****  **  *** ****** *****  * ** *   *  * ** *  * * 
}
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