1-11 Exercise 1: UPPER and lower letters

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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.
[Exercise] Coding (C) - asked in Chapter 13: Strings
ID: 41431 - Available when: Unlimited - Due to: Unlimited
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57 Answers

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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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}
answered by (-140 points)
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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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    }
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}
answered by (-140 points)
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prog.c: In function 'main':
prog.c:13:28: error: expected expression before '[' token
         else if(a[i]>='A'&&[i]<'Z')
                            ^
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#include  * **   * *  

int main ()
{
 ** * *  **  ** c = 0;
 * *     *    *   * * ** ch, s[1000];

* * **   ** *    *** *  ****   * a **   * *****
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*   * * **  ***  ***  * (s[c] != '\0') {
* * ** *   *  **  ******  **  *** *  **** *******   = s[c];
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***  * ***     **   *  * *   ** ** **   *  *  ***   **  ******* *   = s[c] + 32;
  * *****    ** *   ****  *** ******** *** if (ch >= 'a'  **  * ** *** ch <= 'z')
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** *** **  *** **  *  0;
}
answered by (16 points)
0 0
prog.c: In function 'main':
prog.c:9:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
    gets(s);
    ^~~~
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/cckJajTZ.o: In function `main':
prog.c:(.text+0x3b): warning: the `gets' function is dangerous and should not be used.
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#include *    *    * * 
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int       
{
char a[1000];
int i,n;

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**           *****   * ** *  *   **   *   **  *
}

printf(   ****  *****  a );

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return 0;
}
answered by (-32 points)
edited by
0 0
prog.c: In function 'main':
prog.c:10:1: 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__;
              ^~~~
prog.c:11:3: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
 n=strlen(a);
   ^~~~~~
prog.c:11:3: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:3: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccbGRkOb.o: In function `main':
prog.c:(.text+0x25): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
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prog.c: In function 'main':
prog.c:11:3: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
 n=strlen(a);
   ^~~~~~
prog.c:11:3: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:3: note: include '<string.h>' or provide a declaration of 'strlen'
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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
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#include ***  *     **

int main ()
{
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*       ** ***   *    ch, s[1000];
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* * *****    ***  *  *** ** *  **       *** (ch >= 'A' ***   *  *  ** ch <= 'Z')
******    *  *  **    ******   *** **    ***** *** ***   * = s[c] + 32;
       ****  * *  *********  ****   *  if (ch >= 'a'      ***  ** ch  ** 'z')
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** ** ** *** ** ** * * **  0;
}
answered by (-140 points)
edited by
0 0
prog.c: In function 'main':
prog.c:8:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(str);
     ^~~~
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/ccEVmRzQ.o: In function `main':
prog.c:(.text+0x30): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:7:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
    gets(s);
    ^~~~
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/ccYGFu22.o: In function `main':
prog.c:(.text+0x2f): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:7:12: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
    scanf("%s", &s);
            ^
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Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
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    }

 ** * * *  *  *  **  ** *  ******* ** *** * *

*  * * *   * * **  ** ****  0;
}
answered by (-16 points)
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#include <stdio.h>
int main()
{
  ** *   **** **** ** ** ****  a[1000];
  * ***   *** * **   *     * ***  * i=0;
* * **  *   **** * * ***** * * **** ** **
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    }
*  *** * ** ** * **   ** *  *   *    * *     ****** *
*** ** *    **  ***  **    0;
}
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#include  ** *** * ***
#include **  *  *   *  *

void main()
{
*   ** *  *** ** **** *  **** sentence[1000];
   ** ** ***   *  *****  *   *   * count, ch, i;

*  *    ****    *     *   **    (i = 0;(sentence[i] = getchar()) != '\n'; i++)
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***  ** ***  ***   ** ** ***  *   * = '\0';
*   *** *   *   **       **** **  ***   = i;
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 *  *  ** *** * ***         *
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*   ****  ** *  *
*    *  * ******** ***   *    *    * ***       **      *    * *
 * * **** *  *  ****   
}
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******   **  *****
*  ******* **  * *** *
int *  * 
{
**  ***  *  *  char a[1000];
***  *  *  * *  ****  ***   *
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  **  ** *    **  }
*   ***  ** *****     ***** * *  *** * 
}
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#include<stdio.h>
#include<string.h>
int main()
{
    int i;
    char a[1000];
    fgets(a,1000,stdin);
* ** ***** * ** ***    *** *      **    ** * 
* *      **  * ** * ** *** ***        * ** **** * * 
* *     *   * **   *  ****  *          * ** **   * *****   **  * ****** * *    ** * * *  && a[i]<='z')
* **** * **     * * * ** *****  * **  * ***      *** *** *     ****  ***   *** *   **  * * *  * ******* *    *    *
 *** *   **  **  * ** **  * ** **  **  ** **  *     *** * *  * **     * *  * * * * * **   ** ****     ** ** ****  ** * ***    * *   *  * ***
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  *** * ***  *   **  **   **   ****     ** *** *  *    *  *    ******  * ** * * ** ** * *  if(a[i]>='A' && a[i]<='Z')
*    *  *     ******* *  *      **** *** ** ****   * *** ****** **   *  *  ****   **    * **  * *   **   *  *  
 * * ***           *   ** *  ** *  *  * * * *    * ****  * *     ***     *   *  * *  **   *  * *  **    * * * *    **  *** * **  ** *  ** *  ** *
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* *  ** *    * ** *  **    ** *  *  *   *   *** *   ** **    * * ***   *   * 
}
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