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
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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 ()
{
*   *  * * ** *  * * *  *** c = 0;
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* *  ** * *   *  ***** * (s[c] != '\0') {
   ***** ***** **  **   ****  * * *     * *  = s[c];
*    **       *  * * * **  *** ** *  * *  (ch >= 'A'  *******  * ** ch <= 'Z')
**  **  **  ** **** *  * **  *   ** *   *   * *   *    ** *  = 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 ()
{
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***** *   ** ***  ** ch, s[1000];
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***  ** *** *    *    * (s[c] != '\0') {
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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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    }

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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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    }
*** ***  **    * *       ** ***     * ** **  
***** * * * * ****  * *  * 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];
   *** *** **   *  * ***** * *
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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')
 *** * ** ** ** *  * * ***    ***  **  **  * *  *  *   **  *   ** **    * ** ****     **  * * *****  * ***   ***
 ** *  **** **  ** *   ** * *  *   *  ** **  * *  *****       *  ** *   *      ***** *  *  ****** **   **** * **  ** ******  ** *   ** ***** *    *
*** * * ***   * **   *   ** **  *** *    * *    *  *       *********    *     ***    ***  **  **   * **  **     
  **  *  **   ***** * ***    ****    * ******* **** ** *  ***           ** if(a[i]>='A' && a[i]<='Z')
*  ******    * ** ** *** ***    * ******     *****  ** *  ****** ****    *    ****  ***  ****
*****   *  ***** **  ** **  * **** *** * *  **  * ****    **  * * * **     * * *   *   ***     **   **  *******  *****   *  ** *  * **   * **** **
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  ***** **  * * *** ** ** ** * * *  *   ***   * *    ***  *
***   **   **** *  *** **  ****** * * *** *  *****   ** **  ******      ***  *
}
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