1-11 Exercise 1: UPPER and lower letters

Question

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.

Answer 1

Hidden content!
#include <stdio.h>
int main()
{
    char a[100];
    int i;
**  **   *     *     * ** *
 **** * *  ** **  *  ** * * * ** *  ** *  *  
** * *** * * ******  *     ***  ** * *  * * * ** *     ** * ***  *   **   ****  * * 
*****   * ** *  * * **         **** *  *   ******* *  ***  ****  *     *  * * *** *   **
     *  **** ****   * ** **  * ** ****** **  *   *** *    * *  ******** * * * *   *  ** *    * *  ***
*  * * * *  * ***  * **** ** * ***  * *   *   *    **   ***  * **  *   * *   *** *   **  
*** * * *  *    * ***  ****  ** ** 
 * ** * *  ***         *     * *   0;
}

Comments

prog.c: In function 'main':
prog.c:6:5: 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__;
              ^~~~
/tmp/ccsN5nEo.o: In function `main':
prog.c:(.text+0x1f): warning: the `gets' function is dangerous and should not be used.

Answer 2

Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{

 ***      *      *  * ** *  * i;
*  *  **   ** *** *  * **   *** * str1[1000],str2[1000]={0};
* *  * **** ***** **   *** *   ** *   * * * ** a sentence to convert upper to lower and vice versa\n");
**   **  * **   ** ** **  **    *

** **  ** * **      * * *  * *   * *****   *  
** **  **  * * *   **  *  ** *
*  **     **    *     *  *** ****   * *  **** * ***    ** * * ***  **    &&str1[i]<='z')
**     ***** *   ***  *** *     ** * * * *  *****   
     ** * ** * * ***    *** **     ** **  *  **** * * * **  ***       **** **  * *   **** *
*  ** * *  **     *  * **   *** **  *****  * *   **  
    *     *   *   *    * * * *** * * ** * ** *   **  *   * ****        *   *        * * *  ** 
** ****** ***  ** *** *  * ***** **  *   *    *   ** *  * **  ***  ***      ***  *    ** ***
****  * * **  ***  * *
*  *** * ***   *  * ******* * * 
  * * * *     ** * *   * *   *** **   ** * * **   **  *** *  * *******  
*    **   ** *  *    ******   
}
printf("%s\n",str2);
return 0;
}

Comments

prog.c: In function 'main':
prog.c:9:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(str1);
     ^~~~
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/cc2ji0XA.o: In function `main':
prog.c:(.text+0x3d): warning: the `gets' function is dangerous and should not be used.

Answer 3

Hidden content!
#include  * ** *  * * 
#include  *       **
#include   * **   *    * 

int main()
{
*   ****  ******* **  *   ***  array[1000] = {0};

   **         ***  *  **** **  * i = 0;

* * *     * *  **  *      ** **  * 1000, stdin);

* **   *   * **     * ***  *  *** len = strlen(array);

***     ******* ***** ****  = 0; i < len; i++)
  **    *   * ***    *
******   *******   *** * *  **** * * *  ***     *  *   ** * >= 'A') && (array[i] <= 'Z'))
****   ** * **** * ***  *  *  ****  *   **********
  *  * *  * *  ** **  **   **** **       *    **  ** *   **  **      ***   **** ** *** * * += 32;
    * * *   ****   *  ***   * *  ***  *  *   *
     *  **  * **   * *  * *** *          *  * ** *** if((array[i] >= 'a') && (array[i] <= 'z'))
   * *** ***   *** ** **   *   *  ****  ***  **  *  ** 
*    *   * ****  * ***  *** *     *** **        ** *  *  *** ****     * * * * * -= 32;
****   * ** ** *** * * * *   ** *    **  **   **    *  * ****

           **    * ****** ***     *       **    *  ** * **   * ***  ** *   *   array[i]);
* *  *  *** * *** * * ** * ** *
***** * **   *  *** ** ** ***   0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include * ** *   **     * 
#include *  ********  **
#include    *    ****  * * **

int main()
{
* * * *    * * *   ** *  * **    *** a[1000];
   * *   ** ***      ** *  * * i;
 * ***** ***      *** *  ** ****** *  ** *   *

* ****   **   *  *** *  *  * len = strlen(a);
*   * ** ***     * *******    *  = 0 ; i < len ; i++)
 *  *     *   * ***   *** *  *
 **** ** ****    *   ** *      * *     **  * ** ****   >= 'A' && a[i] <= 'Z')
* * * * * * **  *** *** ** *  *****  * *  ** * ** *   *** *     * ****  **** *** *     += 32;
********* ** **  * *  ** ** *  ***** **  *   *** *   *     if(a[i] >= 'a'  **  *  *   a[i] <= 'z')
 *     ****     *** ******* ** * * **  *    * ****   ***  *** *  ***** *  *  ***   *   *** -= 32;
 **  ***   **  ** *   ** *** **  * *** ****          * ** *  * * **  *  ***  *  
*   **  ** * **** * *******    

  * *** **    **   **** ****   *      0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
 *  *  * ***  ****   *
 *  **  **    * * 

int main()
{
int i,txtlen;
char sentence[1000];
* *** ** **  ***  * 

* **  ** *  * * 

 * ** **** ** *   *   *
{

  ** ***  * ** * * *** (sentence[i]>=65 && sentence[i]<=90)
  ***** * * **  **** **  * *****    ** * *  ** ***     * *
*** ** **   * * *** * *    ***  *  *  **  *  * ** *  * ******* *    ***** **  ** * *     *    * 
****  ** ****  **  ***** ** ** **    * ****   **   * **** **      *   && sentence[i]<=122)
    * ** *** ***  **** ******    * *        *  *  * ** ** *
  *** ****    * **        **** *  *** *   ** **   *  **  ***  *     * *  *   *   *  *
*****  **** ** ***   ***  *  * **    *        **** *
 * * **  *  ***    **    *  **
}


}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 6

Hidden content!
 *  *****  ***  * 
  ***** * * ** * **  *   

int main()
{
int i,txtlen;
char sentence[100];
   * ***  ** 

 * ****   *  * *

***   *   *   *  *   
{

***  * * * *  * ***  **    ** (sentence[i]>=65 && sentence[i]<=90)
**  ** ****  *    *    * ** * *      **  * * *  * * 
  *  *** **  *    *   **       * * **   *****  * * * ** *** *  **** ** **  ********* 
 *** * ***** * **     **    ** ***    *  ***  ***** *      * *    ****    && sentence[i]<=122)
** *    **** *** ** ***   * * * ** **  ** ** ***   * 
 * ***  * * *****  **   *** * ****   ***    ** *  ** *  ****     * *     *   * *
  **  ******  * * **  ***   *     **  ** *  **  ***      
* ** *** **  * * **   *****  *** 
}


}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 7

Hidden content!
#include <stdio.h>
#include      ****  ****  *

int main()
{
****** ** ***  * * *   * *     array[100] = {0};

* * * * * * **  *   ******  * ** * i = 0;

 *      *** *** *  *** **** ** **  = 0; i < 100; i++)
*    * **   *    **  ***  
 *** *  * ** *** **     ** * ****  *  ** *** *   **        *  ***   &array[i]);
  *  ***** *  *  *  *  *     **

  *  **        * *  ***** * *      = 0; i < 100; i++)
  * ** ***  *    ***** *   *   
*** ** *  *  ** ** ** **  ***** ** ** * * ******************    >= 'A') && (array[i] <= 'Z'))
*   ** ** * * * * ***   *** **   *** * * ** *  ** **** 
***  **  * * * **   ***** ** ** *** **** **  *        * *  * *** **  * **  **** *** += 32;
  *** * ***  *      *     * *   * ***  ***       * * ** * 
** ** *  * **** *  * * **  ***       * *   **  *  if((array[i] >= 'a') && (array[i] <= 'z'))
  ***  * * * ****    *     ** *** * **   *  *  ****  ** *
*     **     *       *  * **  *** *** ***** * * ** * *      *     ** ** * * * *** *  *** **  * -= 32;
 ***  ***    *    *   *     * * ** **** * *** * *     

* *  ** *****   ********** ** **** *        * *  * ****     *******  * * array[i]);
 * * ********  * *  ** 
***    *   ** * * * **   ** *  *  0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 8

Hidden content!
#include * *   *  *   *  *
#include ** *  *    ****
* ** ****   * *  * *
int *  *  * *
{
** ** *      int c,sws, sayac;
    **   * **      * * * * ***  *   **  **
*  *      *** **  *     ** * * *  *  1000, stdin);
* * **** *     * * *** ****   ** =  * *** * * ** * 
     **  *   * * ** *  ***   (c = 0; c<  * ****
  **** *   * ****  ** *  *  sws =  ** ** *** **     ***  : *    * *     *  * **  *   }}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

prog.c: In function 'main':
prog.c:9:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(string);
     ^~~~
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/ccfLRc9i.o: In function `main':
prog.c:(.text+0x2f): warning: the `gets' function is dangerous and should not be used.

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

prog.c:2:19: fatal error: conio.h: No such file or directory
 #include <conio.h>
                   ^
compilation terminated.

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
    int i,t;
    char a[300];
*   **** *** *      ***  *  * * ** ***  
* ** *  **    ****     *   ***  * *   ** ****
******* * **** ** *  *  *  *** ** * *   ***  * * ******  ****   
 ** * **  **   **   **  **       * *  * ***   * ***** *   **** *   *** **
 ***  *****  ******    ****     ** *   *** * ** *     && t>64){
*  * *  * ** *****  ** *** * * * ** ***   ****   ** **     **  **   *  *  ** * ***    * ** ** *
*** * ** *** ***   *****  *     * *****              * ** * *  * * **     * ****     **      
  * *  * * * * * **  * ***     ** * *  *  * *   *** **
 *  ***   ** * **   ** * *       * *** *    ***       **   * if(t<123 && t>96){
 * * * ***  * **     **    * * **     ** *    *  * ***** * * *    ****  **** **********  **
* **** **    * ****  ****  ** ** * *  *  ** *  *** *  ** *  ** **  ***  * ** ********
  **          *  *  *   * *** *********  **    * 
   *** ***** *   *    * * ** ****  **  * *** *  *** * **  ** **    *   *    
    }
*   ** * *** ** *******    * *  *      ** 
 *    ***  **  **    ** **   **  * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 10

Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
    int i,t;
    char a[200];
  ********** ** **  * *** *  ** * *
 * ****    *      **** *  *  * ***  * *  **
*      ** * ** *    ** ***   *      ***** *   *    ** ** *
* *    ****  * ********  * * *  ** *    * * ***      * * * * * ** ** **  ** * *** **  *
 * **  *** ****** ****** * *   *   *  ***  *  **** ** **   * *** && t>64){
***   *  *  *  **    ** ** *  * *  ** **  * ** **    * ***  *  *  ** *   * ** **  *  * *   *  **
 *** *  *  ***   *  * **  *   **  *  ***    **** ** *      **  **** ***        ** ** ****  
*** **** ** *  **    * *************** **  *** ****** *** 
   *** * *  * *** *** **      * *  *** ** * *** *** *   *  if(t<123 && t>96){
** *     * ** ******* ** *  ** * * **   *** * * * * * * *      *** *  *    **  *     
** *     ******   *****  *   * *       * **   * * ** ** * **  * ***   *   ***    *   * 
*  *** *** *******  ** *  ** **   * *  * * ***** * 
  ** *  * ** **     *** ** *    *** **   ** *  *****   ** * *  ****  * ** *** *  *
    }
    * **  * * *    *  *  **   ** ** *  * **    *   
 *     * ** **  *      ** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output