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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Case 0: Correct output
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];

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

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return 0;
}
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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.
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 ()
{
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******* **  *****    * *** ch, s[1000];
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 **    **** ** * *   ********  **  if (ch >= 'a' * ***  **   ch   *   * 'z')
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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()
{
*****  * ****  *   * *   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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}
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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* ***  ** *   **   *    *  **
**  * ** *   *    ** ** **       ***  = '\0';
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*** *    * ** **** * 
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    *    *  *  
****** *   * **   *   * *  * * **   *  *   ** * ****   **  **
 * * **  **   *      * ***
}
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  *** *   **   *
  *  ***    **  *  
int  **  *
{
***** * *     ** char a[1000];
***  *    *** *       * * **** 
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**   ***   * *  **    *  *** }
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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')
* ***  **   *    ** *  *   *  ** *  ***   * *    *   **  * *  *** *** ** * ** **   *** * *     **  ***  * ***
***** *   * ** * * * **    *   ****      * * *****  **    * * **  * *  *** ***      ***  *     *** *  *  *** * ** *   **    *  *  ***    * **       
******** * **  *  * ** *   **  ****** * **** ** * *   *  *   *  *****  *** *  * * *** ** ** * **  *
* * ***** ****   **** *    *  *  *  * *  *  **  * *** *** * **  **     **   if(a[i]>='A' && a[i]<='Z')
*  **  *  *    **  * *** *  ***  * * ***  *         *  *   * **   ** * **    ******* ******* **
 **  * *** * **   * *  * *** *  * **** *   ***  **    * *  * * *  * **   **** * *  *** *** *  ****   ****  ***  ** *     * * * ***  *    * *
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* * * * ** **  ***   **  *   *  * *   * ** *  *** 
  ** ** * * *****      * * *  ***    ** ** **    * *** * *  * ***  *  ** *** * * *
}
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