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:104.23.243.108
©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