0 like 0 dislike
18.6k 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 | 18.6k 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:104.23.197.95
©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
| 12.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users