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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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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*    *  *  **  **    *** *  *  *   0;
}
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];
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* *    * *  *  *   * *   ***** * *  *   *** *  *  **  * ** *** *  = s[c] + 32;
* *  *** *  ** *  **   * ******   *  ****  * * 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 * **     *  * *
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**    *    **  **   **
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
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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.
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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'
commented by (4.3k points)
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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);

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*  *** *   *  *  * *  **  ***  *** ****  ** = s[c];
 * *  *  *   *   * ***    ** * *   *   * **    (ch >= 'A' * *** ***    ch <= 'Z')
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 *  ** *  ***  ****  ***  ***** ** *  * *** * if (ch >= 'a' * * * *    *   ch * *  * 'z')
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 *   *   *** * * *     *** ** *   *
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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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Case 1: Wrong output
Case 2: Wrong output
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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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   **  ** ***** ** ***  *      *  ** * *  * ****   * * ** ***  
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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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#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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