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;
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}

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()
{

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}
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()
{
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 **   *    ** ** *** *   * * 
*********  * *** *  ********     * 0;
}

Comments

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

Answer 4

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

int main()
{
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** * **** *** * *     **  ** i;
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}

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];
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{

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}


}

Comments

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

Answer 6

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

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}


}

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};

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* * ** ** *** **   *     *** = 0; i < 100; i++)
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 * * * ** **  ** ***   ** ***
     **      *          * * *  0;
}

Comments

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

Answer 8

Hidden content!
#include  ** ***    *
#include ** *  ** *    **  
** * ** ** * * *  *  *
int  **** * *
{
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* * ***** *  ** ** *   *  *** = *  ***    
*   *  *** * *** ** * ** *   (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];
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*    ***** **   *******     *** * *** ******  * *  * **   ** **    ** *   **  * * * 
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**  *** ***    ** *   ** ** * ** ** *   ** * * ****    *   ** * ****   *
    }
** * **  ** **    *  ** ****    * ***** * *  *    *  *
 * * * * * **  *  * **   ** * * 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];
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* *  * ** * *     *    * *   ****  *  *    * **  * ***** 
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*  *  ***    **** *  ** **  ******** ** * * *  *   *  ** * ****** ****   * *  *     *
**** *** * *  *  **    * ** * *** ********* ****      ****** ***  *  && t>64){
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  *     *  **   * ****   **** ***  *      *************  * * **    ** * * *** ***  ** *    *
**    * *** **  * ********  **    ***   * ******  *******     ** *   * * * *****
 ****   * * ** ** *  **  *  *  * * *****   *  * **      **  
 **   * *** *   *******  ** *  *** ** * ** * *   *   * ***  * ** *******  ** * * * *  
    }
 *  *  ** ** *** *     * ***  **     * **   * * 
  ** * ** *   * **   **  *** * 0;
}

Comments

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