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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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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}
answered by (-140 points)
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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 ()
{
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*   **  * * *    **   * (s[c] != '\0') {
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** *** *     ***** *   *** ** ** * *    * ***  ***  ****      = s[c] + 32;
**** * **   * ** * ***  *** **      ** ** if (ch >= 'a' ** **   ***  ch <= 'z')
*  ***  *  ****** ** * **  *  * ***   ** *  *  *  * * *         * * = s[c] - 32;
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}
answered by (16 points)
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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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}

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.
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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'
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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
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#include    ***         *

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

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  *  ** * *  *   *  ** * * ***    * * **     = s[c];
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**  **  **   *   * ** *** * * *** ******   *** s);

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}
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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    }
 * **  ****  ****  * ** **     *******  ** * ** * * * * 
 * *** **** ** * **     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';
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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')
 *        ***  *** **  * *  *   *    *** *** ***   *** ** ***     *  ****   **  **   ******    ** *  * * *
*** ***      ***** * **  * *  * * * **  ** *  *******   *****     ****   ** *** ** **  * ** *  * **      *  ***   *   *** *  *** * * * *  *****     * ** 
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**  *  * *         ***  **    ** **** * *  *    **   *   ** ******   * *    *** if(a[i]>='A' && a[i]<='Z')
 ** * *    ****   *  **  * *** ** ***  ***   * ***  ** **   * *  *** ** ***** * ***  * * ** **   *******   * 
*     *    *  * ******  ** **  *** *  ****   ** ****  ******** *   * *      *  * ***    *** * **  *  * ******     *   ***  * ** ***** * * ** *** * ***** 
* **** **    *  ** *  ** *** ***  ****** ** **     * **   *** * * *** *  ** ** *  ******  * * ** **  *  * * **
** **   *********   **   ** ******    ****** * 
*     ***** ***   * ** **** **  *   * ** **** **    ******* * **  *    ** **   * **
}
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