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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** *  ** ** **  * * ** ** *  * **  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;
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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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}

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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*     *    *  * ***     * **  len = strlen(a);
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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()
{
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}

Comments

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

Answer 8

Hidden content!
#include  *****   **** * 
#include * **     *** 
*    *  * ***  *  * 
int  **  
{
****      * * *  int c,sws, sayac;
***** ** ***** * **  **     *  * ** **
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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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    }
**  *      *  *    **   *  **** ****   *    **   * 
**** *****  **  **** *   **      * 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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***  *** *  * ** *  **       ***  *** * * ** * ** * * *    ** *  *   *  * *** ** **
    }
  *  * **  ***       **  * * * * * ****  **  ***    
******    *  **  **** * **  0;
}

Comments

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