0 like 0 dislike
18.7k 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 | 18.7k 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
| 12.9k 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
| 12.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users