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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***   ***** **   *  ** * ***     0;
}
answered by (-140 points)
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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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    }
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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];
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**** *** ******** * **   *** * ** * * ** * ** *  * ** ** *** ** ** * = s[c] + 32;
* ** *** ** *** * ** *** ***    ** * if (ch >= 'a' * ****** *  *  ch <= 'z')
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** *           ***  * * *  *  ** *    **  *  s);

***   *   **      * * 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 );

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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)
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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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* * * *  * ** *  * ** * ch, s[1000];
**    ********* * * *   * ** * * ** *    s);

***  *   * * * ***** * * (s[c] != '\0') {
*   * *  *  *     ** ***    * **    *   = 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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Case 0: Wrong output
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#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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}
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#include **  ** * * 
#include *   **      ** **

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

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  *** **  ****** ******  * 
}
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**  **  ****    *   *
**  * *****    * * * *
int   * ** *
{
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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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