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