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
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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];

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* *      * * ***  ** (s[c] != '\0') {
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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
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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.
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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**  * * *  **  ** ** **   *     ** ** *** ** *** 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()
{
*  ******** **    *     **  ** * a[1000];

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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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* * ** * ** ***** * ** **** * *  = i;
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* ** ***  * *   * **   **    *
}
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* * * ***  *  ***    
   ****  **    **   **
int **** 
{
*    * *      char a[1000];
*** * * * **  * *     ** 
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** * * *   *** *     * ** * **  *** }
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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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 ***    * ******    *  * * **   * *   ***    *    * ***      *  *  ***      * *   **    * * **      *  * * **   **       * ****   * ** * ** ******       ** *** *  *
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* ** * * **** ******  * *     * ** *   *       * * 
 *   ** *  *  **   * **    ** *  **   * ***** ***  ** * ***   **   *** **** 
}
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