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