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 1: Correct output
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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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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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    *  *    * ** *  *** * 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
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;
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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);
            ^
commented by (4.3k points)
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Case 0: Wrong output
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;
 * *  ** ** * *  * *     *   *  *   ***** * 
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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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**         * *      *    * *  *
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* ** * *  **** * ** **   **  * * = i;
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* * *    *   * **   **
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 *  ******  * 
  *** **** ****   *  **  * ** * * ** ** *  * *   **  ***    
    ****   *        *    **** 
}
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**      ***  *  *    **
 *  *             *
int    ** 
{
**** **  ** **  char a[1000];
***   *****  * ****    *** **
  ***** * ** *** int i;
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* *** * *   * *   * **       * * **   * *  ***
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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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