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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    }
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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 ***    **** 
** **  * * *   **** * *   * ****

**** * *       **  * * (s[c] != '\0') {
 ****  *** * * ******** *  **** **  *  *    = s[c];
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**  *      * **  **  *  *  ** *  *****  * ** *   ***   *  = s[c] + 32;
 * ****  *** *** ** *   ** * *    **   * if (ch >= 'a' *   *  * * * ch <= 'z')
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******  ***   *  *   *  *    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  * ** *   **  
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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)
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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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  **     **    * *** **  *  *   *****   = s[c];
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 ** ** *       *  ** ***  **     **    * *   ** * * * * *  = s[c] + 32;
  * *     * ** *      ** **     *   * * *  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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#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';
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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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