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