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 0: Correct output
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 ()
{
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**    *  * * * ******* ch, s[1000];

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*   ****    *** * *

 **   *   * *   * * **  (s[c] != '\0') {
**** *  *** *  ** *  *   * ** *** *   **   = s[c];
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* *  ***   * *  *      **     **  * * *** 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 ****  ** *** *  
    *     **     *   *   
** *   *     ** *   * *   * * 
int   ** **
{
char a[1000];
int i,n;

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{
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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') {
 * * * **      *   *******      ***    ** = s[c];
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*****    * * *  ** * * ****  **     *      ** *  *   * *  * ***** * = s[c] + 32;
   **** ** ** *** *****  ***   *   *   **** *  if (ch >= 'a'    ****     ch   * *  'z')
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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()
{
  **  ** * **   ***  **    * ** a[1000];

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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)
    {
   * ***   *  ** * *** ** **  ***   *  *** * ** ** ***   *   (a[i]>64 && a[i]<91)
***   * ** *     **  ***  *   * *   * *   *  *  ****  
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    }
*  ** * **** * ** *  *** *   ***** *****   *  
 *    *      **  *   ** * *   0;
}
answered by (-229 points)
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#include **   *    *****
#include  * *  ** **  *

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

  *   ***   * * **  ** *  **  (i = 0;(sentence[i] = getchar()) != '\n'; i++)
** *** * *  *    ** ** *** * 
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***       **  ** *     
**  *** *  **     ** **  *** ***    = '\0';
    *** *** **     ***** **  = i;
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*** *  *    **  * *      ***
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 * * *    ** * 
 *** * *  * *  *  * *  ** **   ***  **** *  * * ***  ****** *
  * *   **** **   **** *** ******
}
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*  ***  *** *   *   **
    **   **  *    
int  *** * *
{
*     *     * char a[1000];
 * * **   * *   **  *** **  *
  **  ** ** **  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')
 * *    *  ****** *    * **  ****** **  ** * *    *  * *  *     *** **  * * * ***     * *  * *** *  *  *** *  *
*  ** **  **  * ** * ** *** *****   **  *****  **   ** **  *     * *   ** * ** **  **   ** *  *  ** ****   ** ** ** ** **** **   ****  *  *  ** ***  
 * * *   *  **  * **    **  * *  **  **** * * *  ***   *** **  *  ** *** *  **   *  *  **   * ** **  ** *
**  * ** ** ****  *  * ******* *  ***    *****      *   *      *  **    ** ** * * * if(a[i]>='A' && a[i]<='Z')
 ** ****  *   ** * ** *   *   ** * ***  **  ** * ** *    *   * *  **  * ***    ***   * *  * * *** * **     ****
* *****    *  * **    * * *  **   * **  *** **   **  **  *** *** ****  *     * * ***   * *  *       * ** ****** *  ***  ******  **    *  * * *  **  ** 
 * ********* ** ** *** **** *   ***  ****  * *       * *     *  *** **  *    ***  * *** ***  * *** * *  **** *   ***
*    * **** **  * *  *  **   * * ** *     **   ** 
***    ** **        ** *** **  *  *   *** **  * ** * * *  ** *** **** 
}
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