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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*   * *   * ***   *    **** *** * * str1[1000],str2[1000]={0};
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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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* *  ** *        *** *** ** ***   i = 0;

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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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}

Comments

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

Answer 5

Hidden content!
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int main()
{
int i,txtlen;
char sentence[1000];
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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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   * **** *   * *****    ** * ** 
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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;
** *****    * **    ** *   **     ***** 
** * ********* *** * ** ***     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];
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* *      * *  *  * *** **  ** * **** *  * *   *   **    * ***    && t>64){
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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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***** * * **  **  ** **  * * * *        *  ** * ** * *   *    && t>64){
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*   *******   *  *  **   * * *   ****** ** * *   
  *  * ** * **  ***  **** *** ** *  *** ******    **  * *  if(t<123 && t>96){
     ** * **       ***  * ******* * *****   **    **  ***  ****   * * ******* ** * 
**** *    *     ****  *****   ***   ***  * * *  * * *** ** * *** *  *  **** **
  *  ** ******* *****      * **** *    * ******
**  * **** * * * **  * **  ** * ** **   * **  ****** **   * *   **** **
    }
 ******  ** **  *** *****    ** **  ** *** * * *  *  **  * 
 **  *  **  * * **     *    *  ** * 0;
}

Comments

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