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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}
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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 **   **     
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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  *  * * *   * 
  ****   ****  *    *** 
*** *     *** 
int     *  
{
char a[1000];
int i,n;

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{
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}

printf(    *   *    ** a );

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return 0;
}
answered by (-32 points)
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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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  *** ** **  ** * * ** * ****   * ******  if (ch >= 'a' *** *   * *  ch  *   'z')
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}
answered by (-140 points)
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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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    }

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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;

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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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#include<stdio.h>
#include<string.h>
int main()
{
    int i;
    char a[1000];
    fgets(a,1000,stdin);
  ** **** *  ** ** ** **  ***          *   *  * **    
     **   * ***    *     * * ***        * ****  **   
 * *  ** * **  ** **  ***** *** ** *** ** ***  *  ** ****  ** **  *   * *   **    *****    * && a[i]<='z')
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*  ** * *  * ** * * * ****  *   *  * **  **  *    ** *
  **       * *   ** * ***  ** * *  ** * * *** * **** ** * **** ** * ***
}
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