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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}
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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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**   **   *     *** *** ** ch, s[1000];

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  *   *   ** *** ** *   ** (s[c] != '\0') {
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** *  *        **  **         ****    ***  (ch >= 'A'   **  *** * ch <= 'Z')
 ******** * **** * *** * ** *   *   ******      ***  *  * * *  = s[c] + 32;
* * *   ** * *  * * * **    *    *  *  ***   **** if (ch >= 'a' *  ****     ch <= 'z')
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**** ***     *  ** ***      ****  * * * * *  s);

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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];
int i,n;

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}

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

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return 0;
}
answered by (-32 points)
edited by
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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.
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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];
**** *    * *** ** *****   * *      ** * s);

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***  * *     * ** * ****   * **  *  *  ** = s[c];
** *  *  *** *   ** **    *     ** *    ** * (ch >= 'A' ** * ***  ch <= 'Z')
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* * ****** *  * ***  * * **  0;
}
answered by (-140 points)
edited by
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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.
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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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#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;

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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);
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*  * * * * * ****      ****  ************  * **  * * *  ***   *  *  * ** ** *** **** if(a[i]>='A' && a[i]<='Z')
**  *  * ** ** * * ***    * ***   *  * * * *   ***  * **    **** *** **            *  *  *** *       
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*     * *  ** *** ****** * *  * * ****  * **   * * *   
**    **  ***    *     ****** ** **** **          **  ** **   * ***  ****     *
}
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