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()
{
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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];

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 **     *  * ****  *  * *  (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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}

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.
commented by (4.3k points)
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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;
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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;
}
answered by (-229 points)
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#include * *** *  * *** ***
#include ** * *    *  **

void main()
{
* *** ** **       ** * **** * sentence[1000];
        **   *   *  * **  ** 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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***  * **  **** *  *  **  *  * **** *  * *  * *      ** 
***  ****** **  * *  * *  *    ** ****   *     ** ****   *  **       * ** **  
}
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