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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    }
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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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 * ** **     **     ********      * if (ch >= 'a'    **  **    **  ch <= 'z')
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**** *  ** * * ***   *    *  ** * ***  ** s);

**  **** ** *   ** **      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
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)
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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'
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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** * ** *  ****  * ** ** *  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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* *** * **  *    ***
     ***   ** * **   * *
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);
 *    **  *    ****** * **  * * ** ** **  
** *   * **    *** * *   *       *     *      * **   ******* 
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 *   * **  * **   **   *** *  *          *       * 
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}
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