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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#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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}
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] + 32;
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}
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.
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 1: Wrong output
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Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
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    }

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 ***  *  * * ** * *****   *   * 0;
}
answered by (-16 points)
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Case 0: Correct output
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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;

***  *** * ***** *****  **  * (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];
* ** * * *   *  ** *  * ****  
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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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** **  * * ** *   * *****  **   *      *     *****  ** *
*  **  *   *       *   ** ** ****  * *  *   * * *  *  *   * **    ****  *
}
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