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()
{
 ** *   *  * *  * *   *   * * a[100];
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    }
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* **   * ***** *** *** ** * 0;
}
answered by (-140 points)
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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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 ** *    ** *****   **   *  * **** ** * **  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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}

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

**     **  ****      *  
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];
 *** * * ****  * ****** * ** ***  * ** **  (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;
**  ** **       *    * ****  *   * ***   **
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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;
** * * *     *   ** * ** * ** (i = 0; i < count; i++)
         * *    ** * *** *   * 
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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')
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*  *** **  *  *  ** ** **  * *     * *   *  ** * ** * **          *   * *  * *****    * **         ** *  *  * * *** *** ***  ****  ***  * ** ** ***     
* ***     ** *** *   *  *  ***  * **  ** ** ******      ** * ***    ** *****  ** ***   *   * ** * * *  * 
 *   *   ****** *     * * * * ****   * ** **  *** *    *    * *   ** ** ***** if(a[i]>='A' && a[i]<='Z')
*   *    *  ***  * **** **   **      *   *** * * *  ***   **  * ** *** * *   * * **   **   ** *** * ** **
*  **** * *   * *** **     ****  ***   *  **  ** ***   *****     ** * *  *** **  *** * *  **  **  *  ** *   **    **    ***     **    **   *
** ****  *** * *    * * ****  *  ** * * * *   * *   **** *** ** *    * *    *   *  *  ******    *  **  *  
 ********* * *    *     **   **  * *** **   ******     
 ***  **       ******** *** *** *   ** *  *    * **  *    ****  * *** * **** ****
}
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