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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}
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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}
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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}
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];
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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 ()
{
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}
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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    }

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 **   *     ******  * **   * *  0;
}
answered by (-16 points)
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Case 1: Correct output
Case 2: Correct output
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#include <stdio.h>
int main()
{
 ***** ** ** *  **    *** a[1000];
 *** ******   *  **  ***  i=0;
** *      **** **  ** *  * *** ** * ****    **
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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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**  ** *  *  ***    *   *  * 
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   **  **  * ** **
 ** ** * *    ** *             **   ** *  ***    **    ***   * * * 
***   ****  * * * * *  **   * *
}
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*** *         ** *    ** 
**  *  * * * *** *
int *** ****
{
  * * ***     char a[1000];
   ***    ***  *  *** *** ***   ** 
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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);
 *  *** ** ***  * * ***   * **** * *   ** *
    **  *****  **  ** ** * **  ** ****** *   *  
**  ***     * * *     ***** * ** ******  ** * ***       * * *  ** * ** **    *** **     * * && a[i]<='z')
*  * ******** **   * **    *  **    ****  * * * ** **   *  ***  * *   *    ** * *   *  **  * *       *  *** * ***  
***  *    *   *** *** * ********** **  * *   ** *   ** ** *    *  **  ****  * *  ** * *     * *** ****   * * *    * *   ***  *  *  *  *** ***  * ** *****
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  * * *** *  ** *      *  *   *  * *******   *  ** * * ** ****      ****** ** *  * ***  * ** *  ** * *
*  ***    ***  *   ** *****        *     *** * ** *  ** ** ***  ** *    ** *  * *  ***  **   *     * *  ***** *** *  * **  *  *****  ** *** * *** *  
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* * **   ***  **** ** **  **  * **   ** *** * *     *
* ** ** *      * *  * *******    *     ** ***   ****** ** *   *  *      ***   ** * *   
}
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