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];
* * ******   **** *    *  ***** * **   * (ch >= 'A'        **** *  ch <= 'Z')
*  *** **   * * ***   **   *  **  ****    ***   ***  **  **  *   = s[c] + 32;
**     **     ** * * ** ** *       *     * *  if (ch >= 'a'  * * * ***** ch <= 'z')
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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
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)
0 0
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 ()
{
****  * *    * * * c = 0;
   * **   ** *  *** ** ** ch, s[1000];
***   *   *  *****    * *   *  **  *** s);

*  ****** * *********  (s[c] != '\0') {
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* * * ******    ***  * *  *   * *** ***  * *   * ****   ** = 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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#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];
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***  * **  **   ** * ****  (a[i]!=0)
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** ** **   *  * * **** ** *  *   *   **  ***   *  **
   **  ** * * **   *  * * 0;
}
answered by (-229 points)
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#include   *  * ***** *
#include **  * ***  * * 

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

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*  * * *  * ***  * *  ****
***   **** *** * * * *   = '\0';
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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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