0 like 0 dislike
17.8k 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 | 17.8k 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:104.23.243.164
©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
| 12.3k 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