0 like 0 dislike
20.7k 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 | 20.7k 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:162.159.115.9
©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
| 14.4k 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
| 13.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users