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

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

  *   *   * * ******  * *** **  * 0;
}
answered by (-16 points)
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#include <stdio.h>
int main()
{
  *  **  *** *  *    **** * ** a[1000];
 ***** **   * *  **  *   * ** * i=0;
 *  * *  * *    *   * **  ***   ** *******  * 
**    * ** * * * **      *  (a[i]!=0)
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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';
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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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* * * *   * ****  ** *** ** *    **  *   * ** *   ***  *** *   * ***  * * **** *** 
}
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