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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}
answered by (-140 points)
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Case 1: 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] != '\0') {
*   **** **   *** *  ** ** ***** **  *   = s[c];
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  *** * ***    * ***  ***  *****  **  ****  *  ** *  * *** = s[c] + 32;
********** *     ** *   * **** *  ** *    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)
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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* * ***  **  ** ****  *** ** **   ***  *  = 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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#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
 **    *  * * ***  *   *   ***  a[1000];

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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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    }
* * * **  *** ** ***** *****    *   ***   ***  *** 
*  * *  *  *   ** *  **  ****** 0;
}
answered by (-229 points)
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#include *  * *   **    *
#include  ***  ******  

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

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***        ** ****  *   * *
**** ***  *  *** * **** ***   * = '\0';
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** * *  ** ** **  **   ** (i = 0; i < count; i++)
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**  *  *  ****  **   
}
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*  *** * ***      **
     **   ** *     
int *  **
{
*    ***     * ** char a[1000];
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** ** *   * 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);
****  *  *  *** *   *      *** * * *  *** ***
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  ** **  * ** **** *****    **** ** **   * * *   *   * *  *  * *** *  *    **    ** ** * * *  ******   && a[i]<='z')
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* *  *** * *    * ** ***   ****** ** * *  ** * * ********   * * * ****  * * *   * * * ***  * * ***     ** *   * 
******       *  *  **   *   ** ***  * *  *  *   * ***   ***   **   *   **  **  ** if(a[i]>='A' && a[i]<='Z')
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   *    **      ***    *** * * *   **  ** **       *   * *   *    * ** * *  *** ** * * * **  **** * **** *           *  **   ** ***   ***** ** **
 ** **   **  * *       ** * *  * *  *  *  ***** ** ** *  * *  * **  *  *****     **  **  *  *     *     
* ***  * *****  * *    *   * *  *******  *** * *  *
 **** ** *   *  ***** ****     *   *** *  **      * ****** ** *  **** * *
}
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