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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    }
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}
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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()
{
***  **  **    **  * *    a[100];
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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];

** *   ****  ***** *  **** *  **** a    ** * * ***
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    * **   ***  * * * * *  (s[c] != '\0') {
*   * *  **   *    ** *****   *   *** * = s[c];
*****  * * ***  *** *  **** *** **  * * (ch >= 'A'  *****   **   ch <= 'Z')
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   * * * *   ***** **    *  *  **  ******* *     *** 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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}

printf( **   * * *   a );

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return 0;
}
answered by (-32 points)
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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'
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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];
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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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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;

** * * *  * ** * ******* * ** *  (i = 0;(sentence[i] = getchar()) != '\n'; i++)
** *           **  *  
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* ***     ****   * * *  ** **  ***
 ** *****   *   *** *    *  *  * * = '\0';
**     * **  *  * *** ****  *  = i;
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*** *  ** * *** ****** *
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    **  **
 * *** ** *  *    * **  *** ** *    ****** *       * * **  
* * * *****    **  * * * *** *  
}
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 ***  * **  *** *** * * 
  * * ** * * **   * *  *
int  *****
{
* **  * ** ** * char a[1000];
  *  * * * ** *  *    * ** ***
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**  ***   * ** *  **   *** ** else *    * *** *  ** * * ** **  *  * * * * *   *
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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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