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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#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];

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

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   * **** * ***  ** *******     *  **       = s[c];
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**** *  ** * *      **** * *     *  ***  * *   *      ***    ***       = s[c] + 32;
* *****       ** * **   * *  **** *  **** * if (ch >= 'a' ***   ** ** ch <= 'z')
***** *  * ***  * * * **  *    *  ****   *   *  ** ** *    = s[c] - 32;
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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  **    * *  **    
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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)
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);

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

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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;
 *   ** *****   *** **  * * * *   *** **
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    {
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    }
*** ** *  *** *   * *  * *     ***     * *  ****
     *    *     * ** **  *   *  0;
}
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#include *  ** *  *   
#include * ** **     ***  **

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

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