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
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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];

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  **  *    ** ** * ** * * ***

*** **  *** ******   (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   * ***  *  **  
  *  * *        *   
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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
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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 0: Correct output
Case 1: Correct output
Case 2: Correct output
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Hidden content!
#include    *** **** 

int main ()
{
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 ** ***  * * * *   * * * 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);
            ^
commented by (4.3k points)
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Hidden content!
#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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    }
   *  ***  **  ***  ** * ** **  *  * ***  *  
**   * ** *  ****  *  * *  **    0;
}
answered by (-229 points)
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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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   * ***       *** *   * 
}
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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')
** **   *   **** ***   ***  *    *** **   *  **** ** **   *  *   * * * ***  * *** * ***  * *  *  * *   ****   
*   ****  *  ** ***** *   ***  * * * * **        *         *    ***  *   **  *   **   * * *** * ** **   **   ****  **  ** **   *   * 
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 * *     ** **  * *   * *   **  *****    ** * **  * *****  ** **  ********   ****  * * * if(a[i]>='A' && a[i]<='Z')
* * *   ** ** *** * **     *      * *      *  * * **** ****** *  ****** *  * **  *** ***   **  *  *  * **  
  *    * **  * *  **   *  *     *****  ******   *    **   *  *  ** ** * **  ** **  *** *** *  ***  *       **  * *****  ****  *  * *   * *    *  ***
* **  ***** *  ** * *  ** ** **  ** **      *   *  **** ***    *   *       * *  * *  ******     *   * ** **  *
* *    **  *******  ****** ** ** ***  *** *  *   * * ***
*   *  ** * *  ** *   ***** * * ****** *   *** *   * *** ** *  *   ***    *  
}
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