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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    }
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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];

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

** *  ***  ** *****    *  (s[c] != '\0') {
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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
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)
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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 ()
{
* *** *  ** * * *  **** c = 0;
*  **** ************** ch, s[1000];
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*   * ** ** * ** ** * ** (s[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);
            ^
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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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*   **** ***    *    * *** *  ** *  ***  **  *
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}
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#include ***** **  **     
#include  *  **    * **  

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

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*** *  *   * **  * **  
  * ** *** **    *** ** *   ***  *  *  = '\0';
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 * *** *   *  * ** *  ** *** *  *
}
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 **   * *     *  **
*   *** ** * ***    ***
int * **  
{
**  *     ** * char a[1000];
******  * ** ** ** *     * * * 
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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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