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 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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}
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') {
 *** **  ** **        ******* *  **    * * * *  = s[c];
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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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{
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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];
     *    ***   ***********  *   * *   (ch >= 'A'  ** ***** *  ch <= 'Z')
** * *   *  ***  **  **    * *  **  *   ** **** *   * * *   = s[c] + 32;
* *** * *     * * **  ***   *** ****    *****   * 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);
            ^
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
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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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    }
**       *** *** *  *****  **  * *       *** *   * 
* *      *****  * ***** *     *  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;
** **  *  * * ****** **  ***    *  (i = 0; i < count; i++)
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  **   ***  * ** *
***  *  * ** * * *  **    * ***   *   * *** * *  *  ** *   **  
*** **  **  *   **  **       
}
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***** *  ** ** * 
 ******** *** *    *  
int * **    
{
** *  * * **** char a[1000];
    ** * *****  ** ** ** ** 
   ***   *** int i;
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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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