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 1: Correct output
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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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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 ()
{
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}
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];
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}

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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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* * * * *** * ****   * 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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Case 0: Wrong output
Case 1: Wrong output
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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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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
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#include <stdio.h>
int main()
{
 *   ***     **   **    *  ** a[1000];
*     *      **  *   * * *  * * i=0;
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*   *  *  *** *   *****   * * * ** 0;
}
answered by (-229 points)
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#include     *   **   **
#include  * * **** *  *  **

void main()
{
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 **  ********    ***   * ***   count, ch, 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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}
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