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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}
answered by (-140 points)
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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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}
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.
commented by (4.3k points)
0 0
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'
commented by (4.3k points)
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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)
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;

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