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 0: Correct output
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   ** **  * 
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* *  ***** * * **   ***  *      * ** = s[c];
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 *  ** *     ****** *     **   *    *  ****    ** *        ** *  = s[c] + 32;
*  ** * * ****** *   ** *   * *   **** **    * if (ch >= 'a' ** ***  **   ch <= 'z')
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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 );

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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'
commented by (4.3k points)
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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;
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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()
{
*  *  ** * * *  *  **** *  *   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];
* ** * *  *******  **   ** * *** *
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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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** ** ****** *** ** *     ******      **   * * **   ***  ****   * *** * * *** ****** * if(a[i]>='A' && a[i]<='Z')
 ** *****  *******  * *  *** *  **  *  ****** **** *   *****  *    ***  * *  * * *    ** * *  **  ****  **      **  *
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**  *    * * * *** ** *   ** *   * *  *   ** ** ***  *  *  *   ** **  * 
}
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