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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    }
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}
answered by (-140 points)
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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];

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   *   *  *  **  ***   (s[c] != '\0') {
*********   *       ***  * * ***  *  ** * = s[c];
* * ** * ***   *  *** * ** *** * ****** *  (ch >= 'A' *  *** ***  ch <= 'Z')
*  *  **      **   *****  **  ***   *  * *  ** **  * **   **   ** **    = s[c] + 32;
* ***    * * *  ** ** *  **  *  * ******** if (ch >= 'a' **    *  * ch <= 'z')
*****  ***  *  * * *** * *   **   *   * * ****  **    * *  *  = s[c] - 32;
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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.
commented by (4.3k points)
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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
0 0
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;
*** *  ** ***** *    ch, s[1000];
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* *  * ****    *       (s[c] != '\0') {
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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);
            ^
commented by (4.3k points)
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Hidden content!
#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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 ** ** ****  ** ** *   *    **   *** **  *** 
*  ****  **  * *   **  * ** *   0;
}
answered by (-229 points)
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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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**** *****  ****  * 
 * ***** *  * *  *
int ****
{
* * * *  * ** char a[1000];
* *** * ** *     * ****  *     
  ** * **     ** *  int i;
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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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