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 0: Correct output
Case 1: Correct output
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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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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];
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* **     * * * *** **** ** *** * **** **  ***  *****  *  **    = 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
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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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#include      * *  * *  *

int main ()
{
   *** ** *   * * **    * c = 0;
 ********* *  * ** * *   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);
            ^
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Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
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Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
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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;
}
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#include *  * ** *** *
#include **  * ***  *  

void main()
{
* *  * *   *   *   * ** * *   **  **  sentence[1000];
** **       *       *  * *  count, ch, i;

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