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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}
answered by (-140 points)
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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];

  *** * * ****   *     ** **   ** *   a  **      
****  **   **  **  ** 

 *  *    **   *  * ** *   (s[c] != '\0') {
*   ** *     *  ***** *  * **** * ***** = s[c];
 **   ** ** ** ** *   *    * *  **     (ch >= 'A'  * * *    * ch <= 'Z')
* **  ** *   *     ******    * * * *  * *    *   * * **   * **** = s[c] + 32;
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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  **  ** *  **
 *  ** *    * *   * *  ***
*****   * * *** **   ***
int * * *   
{
char a[1000];
int i,n;

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}

printf( **   * ****   a );

*  *  ** *  * **  **
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 ()
{
 **  ** ***  * *  * *   c = 0;
* ** * **    *  *** ch, s[1000];
  * * ** ***  **********  **     *   ** s);

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**  *   ** * * * **  * *** * *** * * * *  * = s[c];
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*  * *  * *** * **     *****  * * **      * 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()
{
     *   ***** *  *  **   * 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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*** **     *** ******      *
}
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**    ** * **  *     **
   **  *   ***            *
int  *  ** 
{
   ** *  ***  *  char a[1000];
**** *  ** ** ******  ** **       *
*****     *****  int i;
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***  *  *   **  * **    *  *   }
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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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 **   **       **    *     *   * * * *** ****** *** ***  * * *  **   **    *  ***  *     * *   ******* *  **
 * * * **  * ***   * **  * ** ******  *  *** **   *  **  ** *  *  *    * ****  *** *  *  *  ****    ** *** * * **      * ** ***   * ***  *** * **   ****     * *   
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    * **  *  *********  **  **   ****    ***   * *    * * *  * ***    ** *  *****  ****** if(a[i]>='A' && a[i]<='Z')
* *    * * *** ** * *   *  * ** ***      *  *** *** *  **  * *** ** * **** **    *      *  ** *****       **** *  **** 
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  * * * ** *   * ****   * ***  *  * **** *  *** **  *    
 * *     *   * ***      ***       ** *    ***** *   *  ***   **  * ***   ** * *
}
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