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
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 ()
{
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**    * *  * ****   *  **  ch, s[1000];

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

**  **   * * *   * * (s[c] != '\0') {
*   ** **  *   *** ** *  ***  *    * ***  *  = s[c];
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******  *  *  **    *   ***     **  *  *** ** ** ** * = s[c] + 32;
*  **** ** ** ***** *****   * **** *  if (ch >= 'a'    **  * ch <= 'z')
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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 ** * *  *  *** * 
** *     ** ****  ** ** 
* *  *  ****** ***** *
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)
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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
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;
 ** **  * * ** ** *** *** *  *** ** *
*** **  *   * ***  ***     * (a[i]!=0)
    {
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*** ** *     **   ****  ****** ** ***    *  ***  ***
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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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   ****  ***   * **   *    
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  * ****  *** * ** ***** * *  * = i;
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*   **   * **
*      * * *   ******* ** ** ***   *    **  *  **    * ** * ** 
    ***  *****  *  * **  *** *
}
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  ***** *** ** *    *
  ***   * ** **  **   
int ***  
{
  ** ** * *** *  char a[1000];
** **  ** *      * * **** *** 
  * ***      * ****   int i;
* ****   * ** *** **  *** ** *****  *
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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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