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
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)
0 0
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')
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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
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'
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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);

** *****  ** ** * *      (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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    }

 * * *** ***  ** * *    **** * **   ** *  * 

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