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