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