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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    }
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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') {
*  ***    **  *  *****  * **  *   ** ***  * ** = s[c];
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*  * **  * **   * *  *  **  *   **  * *  * ***** **   = s[c] + 32;
*   * *** ** * **** *    *   *****        * * * if (ch >= 'a' **   *  * ch <= 'z')
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* * **     ******* **  * ** **   *  *      s);

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}
answered by (16 points)
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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)
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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];
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*   *  * *   ***  *  *    (s[c] != '\0') {
** ** *  * *        ** **     ******    **** = s[c];
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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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    }

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* **   * ** * *  *   **  * **   0;
}
answered by (-16 points)
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#include <stdio.h>
int main()
{
   ***    * **     **  *   *** *  a[1000];
        *    *** **  *  * *** i=0;
***  *** **** **     ******  *  *   
**  * **   ** * * * ** * * (a[i]!=0)
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    }
      **   * ***  *  *   ****     * ****** **     ** 
     **     *  ** ** **** * *  0;
}
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#include  * ** ***   * * 
#include **** * *****  *

void main()
{
 ** * *** * *******     **     sentence[1000];
** ***    **** **       * *****   count, ch, i;

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*  *    ** ***  **     *   ***  * = '\0';
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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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