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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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];

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

*   ***   * *  **    (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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{
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 *   **    ** * *  ***** *    **    *   ** *  * **
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 ******* **** *   *    *   * *      **  *  **** *  **  *
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   ** *  ** * ***   *     * ** **   * ***    *   
}

printf( * ******** *  *  a );

**    **  ****  *   *
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.
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];
 **    *      * *   **      ******  ** (ch >= 'A' *  **  * **    ch <= 'Z')
 ** *    * *  ****  ******  ** ***  ****  *    *  ** **  *   *   * ** *  = 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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#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)
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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';
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   *  ** **** *
*** *  ***  *   ** *  **  *    ** *   * * * **   * *** * ** 
 **   * ******  * *  **    **
}
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** * *  * * * **
 * * *   *      * **
int **  **  
{
    *    *  ***  char a[1000];
 **  * * * ***   *       **  
  ** *    *** int i;
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** *   **    ** ***** *   else   *** **  ** * ** * *    * * *     ****
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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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*          **  **** *** *   *** ** *   **** * *** **    **
* *** *    ***    * ** *   ** *********    * * * *****  * * ** *   *******  * **   
}
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