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
Case 2: 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)
0 0
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')
** *  **  **  * ** *  *    **** ***  * *** * ***      * ** = s[c] - 32;
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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
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.
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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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*  ** * ****  * * **  **** **  **  **       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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#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';
 ******* *    * ***** **  ** = i;
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     ***    *  *
 *** *   *****    ****    * *** * * **  *******    ** **    * *  *
 * *  *** *  *     *** *** *
}
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  ** *** * ***  *  
  *** * * * * **  ****  ** 
int **** 
{
** * *  *  char a[1000];
* ***   *  *** *  * * ***
  ***** **    int i;
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   ** *  **   **   {
****    ** *** * * * **   * ***  * * *  **   *   *        *  *    *** *  
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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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