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

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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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***     * *   *** * ***  *    *** **  ***  *  **    *   *
}

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.
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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') {
  ******* **  *  **   * ** **** ********  **** = s[c];
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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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* ***  * * *     * * *** ** **** ****   **      *    
* **** *** **    * ***  ****       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';
*    **  *  * ** * *** *  *  = i;
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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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*  *  ****** *  *****   **  ****  * ***  * * * ** ******* * *   *  *  *   *** *    if(a[i]>='A' && a[i]<='Z')
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*     ** *  **  * *  **  ** *     **  ** * *   ***
**  *  *   *      *    ** * * *  ** ***   **** ** * *** * *   ********  *  * * * ****
}
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