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 0: Correct output
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 ()
{
  **    ** * **  * *  c = 0;
  * *** *  *****  *  *    * * ch, s[1000];

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  *        ** ** *   * *     

* ** *  **  * *  ******* (s[c] != '\0') {
 **    *  **   ** *  ** *  ***   ***   **** * = s[c];
* **     * **     *    * *  *    * ***** (ch >= 'A' * * * *** * ch <= 'Z')
 *   *  **  * *   *     ** *  ** * *****   **** * * ** * ***   = s[c] + 32;
* ** * **     **   * **  * **    *** **  *  *     if (ch >= 'a' *    *    ** ch <= 'z')
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}
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 );

* ***** ** * ** * * *** *  *
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];
     * **** *   ** **    *** *    **  *   s);

  *     * ** *  *  *   * (s[c] != '\0') {
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****    ** *****  ** *** **   *** *  **  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)
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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#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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#include  ** ******  *  * * 
#include  * * *  * ***    

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

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  ** *    **  *** *   ****  **** 
}
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* *       *******
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int **  * 
{
  * ** *  **** ** char a[1000];
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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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  *   * *  *** *  ** ** * * **  *** *  **     ******* **** * * **   * ** *** 
}
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