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