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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}
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];

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   * * * * * * *  * **  ** *         = s[c];
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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 );

* ****  * * ** **   *
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];
*** **  ****       * *    ****   ** * ** *   s);

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  *** *      * *       *    *  * *** *   * *** if (ch >= 'a' **   *        ch ** 'z')
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* ** **  * ***** *  **  **  ** *   * s);

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