0 like 0 dislike
17.6k views

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

edited by | 17.6k views

57 Answers

0 like 0 dislike
Hidden content!
#include "stdio.h"

int main()

{

* ** * *** * * ** * * * **** ch[1000]={0};

** * ** * ** * * * **** *** * ** i;

** ******* * ***** ** * * ** *** * ** *** * ***

* ** * ***** *** ** * * * * * *** &ch);

**** *** ******** *** ********* ***

*** **** ** ** ** * *** **** ** * ** *** * * * && ch[i]<='z')

***** ** * **** ** * *** * **** * * * * * ** ********** * * *** *

* ** * ** * ** * ******* * * * * ** ***** ** if(ch[i]>='A' && ch[i]<='Z')

*** * * * * ** * *** ** * * *** ** * ** ** ** * * ** ** * ** * ** ** * * *

* * * ** ** * * * *** *** * * ** * * *** * * * ** **

*** * ** * * ** * **** *** *



}
answered by (-284 points)
0 0
prog.c: In function 'main':
prog.c:11:14: warning: zero-length gnu_printf format string [-Wformat-zero-length]
       printf("");
              ^~
prog.c:13:15: warning: format '%[^
   ' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%[^\n]", &ch);
               ^
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <string.h>
int read_line(char str[], int n)
{
int ch, i = 0;
while ((ch = getchar()) != '\n')
if (i < n)
str[i++] = ch;
str[i] = '\0'; /* terminates string */
return i;
}
int write_line(char str[])
{
* ** * ** *** *** *** i=0;
* * ** ****** * * *** *** * ** ** *
** *** ** * * * ** ** *** * ******* * * * * ** * *** *** ** *


* * ***** * * * ** * *** **** *
* * ** * * * * * **** i;
}
int main()
{
**** * ** *** ** * *** * str[1000];
**** ** * **** * i;
*** * * * * * *** *** * *
* ** * ** * ***** * * ** * *
    {
*** * ** * ** ******* * ** * ** ** ** ** * **** * * * ** * *** *** ** ****** *
***** *** * * ** **** ** **** ***** * * * *
* * ********** * *********** **** ****** ** * ** *** ** * * * ** * ***
*** * * *** * * * * * ** * *
** **** * * ** * * ** ** ** * **** ** ** *** * * * if * * ** * *** ***** *** ******* **
** *** ****** * ** * *** * ** **
* ** *** *** ** * * * *** * ** * * * *** * ** *** *
* **** * * * **** * ** * *** ** * * ****
*** * * ***** * *** **
* * * ** ** ** ** * * * *

** * ** * * * *** ** * ** 0;
}
answered by (-196 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{

* ** **** *** * * i;
** * * *** **** **** str1[1000],str2[1000]={0};
** ** * **** * * * ****** * * *** * ** a sentence to convert upper to lower and vice versa\n");
* ** ************ * ***** * **
** * *** * * ******* ****** ***

* * * * * * *** * ** *** * * ***** **** *
** **** * ** *** *
*** **** * *** * * * ** * *** * ***** ** *** ** *** &&str1[i]<='z')
** * * ** ** *** ** *** ** * * * ** *****
******* ** ** * ** * * **** * ** ** * ** * ** * ** * * * * * *** * ** *
*** *** ** * ****** * *** *** * * * *
** * * * * * * * * *** * **** * * **** * ** ** * *** *** * * * ** * ** **** **** *
***** * ** * * ** * * * * * ****** * * ** * *** *** * * * ** *** * ******* *
* ** ** * **** * * ***
* ** ** * ** **** *** ** *
** * ** * ** * * * ** * * * ** ** ** **** * ** * *
** ***** * * * ** * * *****
}
printf("%s",str2);
return 0;
}
answered by (-167 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
#include<stdlib.h>
** *** * **** * * *
int main()
{
** * *** **** *** * ** * S[5000];
* ***** *** * *** **** 5000, stdin);

** ***** ** ** ** * a,N=strlen(S); **** * ** ** * * *
* * ** **** *** ** * * ** * * ***
*** * * * * ** ** ** ** * * * ** ** * * ** * * * && S[a]<='z' )  //大小寫轉換
** * ** * *** * * ** * ****** **** **** *** *** *** ******** ** * * * ** ** ** * * *
**** * ** * **** ** **** * ** *** * ** * * ** ** if * *** ** * ** S[a]<='Z')
** * *** **** * *** * ****** ***** *** *** ** ** **** ** * ***** * ***** **** ** *** ****
* ***** * * *** **** * * * * * ** ** **
* ** * ** * *** ** ******* *** * *** ** * ** * * ******** ** * * * * ** ** * *

 return 0;
}
answered by (-127 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <string.h>
int read_line(char str[], int n)
{
int ch, i = 0;
while ((ch = getchar()) != '\n')
if (i < n)
str[i++] = ch;
str[i] = '\0'; /* terminates string */
return i;
}
int main()
{
* **** ** * **** * str[1000];
* * * * ** * * ** i,a,b;
*** * * ** *** *** * * * ** ****
* ** ** ** * * * ** ******
** * * * * ** ***** * *
* ** * * **** * * * * ** * * *** ** * * ** * * ** * ** ** ** **
** * * ** ** * ** * * *** * * * *
* * ** **** ** * **** * * * ** * * **** *** * ** * * * ** **
* * **** * *** ** ** ********* * ** ** * *
* * * * * * * * ** ** ** * * * **** * * if ** *** ** * * ** ** ******
* *** **** * * ** ** ****** * ** * * ** *****
** * ** ** * * * * * *** ** **** * * **** ** ** * *** ***
* ** * * * * ****** * ** * ***** ** *********
* * * * ** * *** **
** *** * * * * *
* *** * * **** * ** *** ** ** 0;
}
answered by (-196 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <string.h>
int read_line(char str[], int n)
{
int ch, i = 0;
while ((ch = getchar()) != '\n')
if (i < n)
str[i++] = ch;
str[i] = '\0'; /* terminates string */
return i;
}
int main()
{
* ** * * * * * ** *** str[100];
**** ** *** ***** * ** *** * * i,a,b;
** * ** * * ** * * * * ** * * *
* *** *** ** *** *** * **** **
* * * ** * * ** *
** ** * ***** * *** ****** * **** ******* ** **** ** *** * * *
***** ** * * * **** * * ** * ** **
** *** ***** * **** ** * *** * ** ** ** * * * * * ** * *** *
* ****** * *** ** * * * * * *** ** *** ***
*** **** * * * ** * ** ** ** * * ** * * if ***** * * * * * * **** * * *** **
* ** ****** ** * * * * * ** *** * * * * *
* *** **** ** ** * ** ** ** *** * ***** * ** * *** ** ** * * ** * * **
* * ** * *** * * * * * *** * * * * * * ***
* ***** ** **** ** * * *
*** *** *** * **** *
* ** * * * * * * * * 0;
}
answered by (-196 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
int main()
{
    char a[1000];
    int i;
* * **** ** ** *** * * *
***** * * *** *** ****** * *****
*** * * * * * ** * * ** *** ***** * ** * * * ** **** *** ** *** ***
*** * ** **** * * * * ** ** ** **** * ** * * ***** * ** ** ****
* **** * *** ** * * * **** * ******* * * *** ** * *** ** * * * ** * * *
* * * * ** * ** * * *** *** * ** ****** * * **** * * * * * * **
* * * * ** ** ** **
*** * * ** * * ** * * ** * 0;
}
answered by (-284 points)
0 0
prog.c: In function 'main':
prog.c:6:5: 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__;
              ^~~~
/tmp/cckMIBeA.o: In function `main':
prog.c:(.text+0x25): warning: the `gets' function is dangerous and should not be used.
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <string.h>

int main()
{
* * ***** ** * * str[100];
    int i,a,b;
* ** * * * *** * * * * * * * **
***** *** * *** ** ** **** *** * **** ** ** ***
    {
** * ** **** * ** ** * * * * * ** ** ***** ** * ** ***** *** ** ****
*** * ** ** * * * * ** ** ** ** *** ***
* ***** ** * ** ** * * ** * *** ***** *** * ** ***** * * * * * * *
* * ** *** ** * ** ** **** * * * * **** *** * * *
** * ** ** *** * * * ** ** * * ** * ** * if * * * * **** * * *****
**** **** * *** * *** ** * * ********
*** * *** * ** *** ** * ** * **** ** * * ***** * * * * ** **** **
***** * * * ** ** * ***** *** * * **** * ** * *** **
    }
* **** * * *** * * ** **
* *** * * *** * ******** * 0;
}
answered by (-196 points)
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/cc7O3tJu.o: In function `main':
prog.c:(.text+0x23): warning: the `gets' function is dangerous and should not be used.
0 like 0 dislike
Hidden content!
#include <stdio.h>
int main()
{
    char str[100];
    int i,a,b;
*** * ** ** * ** * *
* * *** * * * **** * ** ** * **
    {
**** * * ** ** * * ** ** *** * * ** * * * * * * * **** ** * *** * *
* **** * * ***** *** * * *** *** * **** ** ** *
** * * **** * * ** *** ** * * * ** *** * * ** *** * **** * *
* * **** * ** * * * *** *** *** ******* **
******* ** ****** * * * ** * **** * ** ** ******* if ** * * * * ** * * *** * *** *
* * ******* ** * ** * **** * ** ***
* *** * * *** * * ** ** ***** ** * ** **** * * * * ** * * * *
** * *** * ** *** ** * * * * ** ** *** ** * *
    }
* * * * * *** * **** * *******
***** * ** * * ** * ** * 0;
}
answered by (-196 points)
0 0
prog.c: In function 'main':
prog.c:6:5: 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__;
              ^~~~
prog.c:7:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(str);i++)
               ^~~~~~
prog.c:7:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:7:15: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccX2gnMW.o: In function `main':
prog.c:(.text+0x23): warning: the `gets' function is dangerous and should not be used.
0 like 0 dislike
Hidden content!
#include <stdio.h>
int main()
{
    char str[100];
    int i,a,b;
* * ***** * * * ******* * * *
* * * * * **** *** * ** ** ** *** *** * ** *
    {
*** * * * ** * ** * ** * **** ** * * ** * * * * * * ** ** * ** ** **
** * * ** *** ** * ****** * * **** **
*** * * * **** * ** * * ** * * ** * ** * ***** *** ** ***
*** * * * * * * *** * * ** ** ** * *** *
** * *** ** ** * *** * *** ** ** * ***** * * if * ** ** ** *** * * **** *
* *** *** ** * * * *** * ** * * *
* * *** * * * * * * * *** *** * * * * * **** * ** * ***
* * * * * * *** *** ** * * * ***
    }
* *** * * * ** ** ** * *****
*** ** **** * ** * * * * 0;
}
answered by (-196 points)
0 0
prog.c: In function 'main':
prog.c:6:5: 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__;
              ^~~~
prog.c:7:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(str);i++)
               ^~~~~~
prog.c:7:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:7:15: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccxAMu40.o: In function `main':
prog.c:(.text+0x23): warning: the `gets' function is dangerous and should not be used.
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:162.159.115.32
©2016-2026

Related questions

0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Jan 11, 2018 in Chapter 13: Strings by thopd (12.1k points)
ID: 41439 - Available when: Unlimited - Due to: Unlimited
| 12.2k views
0 like 0 dislike
29 answers
[Exercise] Coding (C) - asked Jan 11, 2018 in Chapter 13: Strings by thopd (12.1k points)
ID: 41436 - Available when: Unlimited - Due to: Unlimited
| 11.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users