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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**   *   *  ********      ** * 0;
}
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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 ()
{
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* *       *****   * *    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 (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.
commented by (4.3k points)
0 0
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];
* * *  *    ** *  * * ** *   * **  *          s);

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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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Hidden content!
#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;
}
answered by (-229 points)
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#include  * *** **  
#include   **   * * *    

void main()
{
 ** * ** ** *  * ***    ***   * sentence[1000];
  *  *     * * * *  **  ** *  count, ch, 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);
 * * **** * **  * *****  * *  *** ** *** *** * *  ***
********  ** ****     * *** * *   ***   ****     ** 
 * *   ******* *  *   ** ** ** *****  * **  *    **   *** ** * *   ***    *  *     *  && a[i]<='z')
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** *** *  *   *  * * * * ***      *   *     ** *** *      **   ******  **   *  ***   ****     
** *** * *    ***     * *    * **** *  ** ****  *  **   * **  *   ** * **** *   * if(a[i]>='A' && a[i]<='Z')
***  ** *  *****   * *   * ***  * ** *    *  *  * * ***   **   **     ** ** ******* **  **    * *** *      
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 *  *   *   *   ***       *** * **  **** *    ***  
 **** *  *       ** ******* ** * *** ** **  *     *      ***  **  * **
}
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