0 like 0 dislike
17.4k 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 | 17.4k 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:104.23.243.165
©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
| 11.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users