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
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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}
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];

*    ** *  ** ** *   *******      *   *   a  **  *** * ** *
****  *  * *   * *  * *   

***** ** * **  ****  (s[c] != '\0') {
  ***   ** *  * ** * *******  ** ** * * *** = s[c];
   **   *****      ***    * ***  * **    * (ch >= 'A' *  ** **  ch <= 'Z')
   * **    *   **      *** **   * **  *  ***** **      * * ****  = 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.
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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];
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* ***    *  *** ** * *   **    **  **  * = s[c];
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*  *** * * ** *  **    **    * ** ***  ** * ** ***  ** ***   **** *    = 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)
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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;
}
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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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** * *     ** 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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****   ** * **** ***  **   *    *     * * **** *    **   *
* *      **   *   *  *   *** *** * * **** ** *** * *     *  *  **  *    * * 
}
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