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()
{
* * ** **  **        *  * ** a[100];
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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 **  ****  **
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**  **  *****   * *  (s[c] != '\0') {
*   ** ****    * ***    *  ** *  **   = s[c];
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 * **  *** *  ** **  ***** ** * *   * *    ****  **     = s[c] + 32;
*  * **  * ** * * * *      * ****   * if (ch >= 'a' ****  ** *** ch <= 'z')
*** * *   ******* *   * * * *      ** * * * ***   * *** ** *   = 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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{
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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'
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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];
 * *   ** ******* * ***** *  *     *  *** * (ch >= 'A'  **  * **  * ch <= 'Z')
** *****     * ** * *   * ** * *   *   * *   *  *** **  ****** * *** *** = s[c] + 32;
 *** *   ****  **      *  *  * **     *   if (ch >= 'a'  ** ** *   * * ch ***  * 'z')
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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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#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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    {
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 ** ** *  ****     **    ***  **   ** * * * ** 
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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')
*  * * ***** * * * *     *** *   **  ****  **** * *** **  * *  *  *      * * *      **    *    *  *   *    **  ** *  
   *  *   * ** ****  * **    *** ********    ** ***  * ***  * * *****    **   *** *          **      *   ** *   * *    *** **     ***  * *   ***   
* ** *   *    * *  *     ***  **** * ** **  ******** ** ** ***** * *** *   *   * ****  * *  *  * **
*** * * ***    **  *** **** ****** * * * *** *   *** **  ****   * * *     ** *  ******* if(a[i]>='A' && a[i]<='Z')
   * *  ** *  ****    ** * **    **********   ******* * **  **  * **   *   *          * ** * *  **
 *       ** *   ***  ** *  **   *  **    **** *** *     ***  **  * *  **     ** ***  *  *** * * ***** * *   **    **  *  * ** *   *  ****    
* ***** ***   *** **  ** *  * * * *  ***** * *  *  ***    *    *    *** ** *  ** *  * ** ** * **  ** *   *    ** * 
*   * *  * **   **     *****    * * **  ***    ** 
  *** * ** * *    **   **  * * * ***  ** *     *  *   *       **  * ** ***** * **
}
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