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用float定義2個數字,char定義運算符號(+,-,*,/)再使用switch判斷將四則運算做出

輸入為第1個數字(空格)運算符號(空格)第2個數字(列如:2 + 5)中間用空格隔開

input
5 + 6
output
11.000000
input
2 - 9
output
-7.000000
input
4 * -3
output
-12.000000
input
4 / 10
output
0.400000

 

[Normal] Coding (C) - asked in 程式設計(一)
ID: 40619 - Available when: Unlimited - Due to: Unlimited

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3 Answers

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Hidden content!
** * ** * * * * **
int main()
{
* ** * * * * float a,c;
** ***   char b;
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** *** * * * **** ** *** * * * ** *
* ** ** **   int flag;
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* **** * *** * *** * *** else ****
***** * ** * *** * * *** * **** flag=3;
*****       else if(b=='-')
*** *       * * **** *** ** flag=4;
**** * * ****   * * * else
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***** *** ** * ** **** }
* * * * ** }
* ***** * ** return 0;
}
answered by (100 points)
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Hidden content!
* ***
answered
0 0
prog.c:1:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input
 kjljkl
 ^~~~~~
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Hidden content!
#include ** * * * *** *
#include * ** *
int main(int argc, char const *argv[])
{
** ** ** *** float * *
* * ** ** char c;

* *** **** *** * ** %c * * * * * ***** * *
* ****** * * **** switch(c)
* ** ** ** * *** * {
** *** *** * ** * ** * * ** * ** * * case '+':
* ** *** * * ** ** ** * * * ** * * ** *** * * * * ans=a+b;
** * ** * * *** *** ** * ** * * ** * break;
** *** ** ** * * * ** * * * * * ** case '*':
* * ** ** * * * * * ** * *** ** ** * *** ans=a*b;
** * * * * * * * *** ** * ** * ** * * * * break;
** ** **** ** * *** * ***** * * case '-':
* * * * *** ** *** * ** * ** * *** * * *** ans=a-b;
*** * **** * *** * * ** **** *** ** *** break;
** * * * *** * *** * * ** * case '/':
** * * * ** * ** * *** * * * * ** ***** * **** ans=a/b;
* * * * * ***** ** *** **** *** * * break;
*** * ** * ** *** ***   ** ** default:
* *** ** ** * * * *** * ** * ** * * ** ** * * **
* * * *** ***** ** * * * ***** * * * break;
* * ** ** * ** ** ** }

*** * * *** * * * ** **** ** **** **** );

** * return 0;
}
answered by (114 points)
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0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
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