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 ()
{
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* ************ * ***  ch, s[1000];

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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'
commented by (4.3k points)
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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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}
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);
            ^
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
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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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Case 2: Correct output
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#include <stdio.h>
int main()
{
** * *  * *** **    ***      a[1000];
** ** *  ***** **   **** *   * i=0;
*  *  ** ** *  * ***    ****  * * *  *****
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    {
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    }
*  ** *  *** *  *      ** **** **  ** *  *  *
  *     ** * ** **   * * * **    0;
}
answered by (-229 points)
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Case 2: Correct output
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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];
**   * *****    * *  *****
**   *    *   int i;
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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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  *  ***  ** *   **** *    ****   * *   *     ** ** **
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 *** * * *****  ** ****** *   ** **** *  **** ** ** ** *    **   *** *** * *** *  ** ** if(a[i]>='A' && a[i]<='Z')
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}
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