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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)
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3 Answers

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Hidden content!
** * * ** * *
int main()
{
*** ** * **** float a,c;
** * *   char b;
*** ** *** ** **** * * *** ** %c * * **** ** ** ** *** ** *
* * * * ** {
* ** * * * ** ** * ** ** * ** *
*** ** ** * * * ***   int flag;
** * * * *** * **** * * *
* *** ** * * * * * * * ** * * * ** flag=1;
* **** ** ** ** * * * else *****
*** ** * * *** ** ** ** * * * *** * ** flag=2;
** * * ** ** ** * * *** else *
** *** *** * *** *** ** * *** * * * ** * * flag=3;
*** **       else if(b=='-')
* * *       *** * *** ** flag=4;
* * * * *   * * else
* ** ** * * * * * * ** * ** * * break;
*** ** * ** * * * * * * * * * ** ** *
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*** ** * ** * ***** * * * * * ** break;
* ***** * ** ** * **** case 2:
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** * * ** *** ** * * ** * * *** *** ** * ** * * **
* * ** ***** *** *** * * break;
*** *** *** ** ***** }
** ** *** }
** * ** 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 (154 points)
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0 0
Case 0: Wrong output
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Case 2: Wrong output
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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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