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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}
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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*****   * ***   ** *** **** ***    *   *   ****  *    * = 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 );

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return 0;
}
answered by (-32 points)
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.
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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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}
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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*****       
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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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 * *    *  **     *****  *** *   **  *   * *  **  *    *    ***  *    * *     * *     if(a[i]>='A' && a[i]<='Z')
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**  *   ** *** **  * **** *    ** ****  ***      ********   *   **  * **  * ****************   *  *   ****** ***** 
** **  *** *   * * ** *      * * *  * **** *  * **  * **
*** ****  **  *   ***  ** ******** * * * *   ** **   **  **  ** ***  **
}
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