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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}
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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    }
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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] + 32;
*    * * * **** ***  * ***  ***** *  **** ** *  if (ch >= 'a' * *** *** *   ch <= 'z')
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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
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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*******   * **  *     * ch, s[1000];
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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];
** *  **** ** * *  ** *** *  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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**   * **  **     
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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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**  ** *      ***  *   *  * **  *  **   ** **  * * *  **  **   * * ** **  *  ***  * *   *  **  *       ****  * * *  * ** *  *   *** *   **
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 *    *   * ** *     **   **  ** *   ** * *  * ****** ** * *  *  * ***   *   *  if(a[i]>='A' && a[i]<='Z')
* ** ****   * * **     **  * **   **** *****   *****    *  **         *  *   *     **** ***  ***** *  **  ****  * 
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*  *****  * ***  * * ** *** * *  *** *   *** *    ** * **  
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}
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