請問一下toj 102( by 翁瑋襄)

jill880829

[C++] 純文本查看 復制代碼

#include<iostream>
#include<iomanip>
using namespace std;

int main()
{
        float a,b,c;
        char d;
        cin>>fixed>>setprecision(4)>>a>>d>>b;
        if(d=='+')
        {
                c=a+b;
                cout<<fixed<<setprecision(4)<<a<<" + "<<b<<" = "<<c<<"\n";
        }
        else if(d=='-')
        {
                c=a-b;
                cout<<fixed<<setprecision(4)<<a<<" - "<<b<<" = "<<c<<"\n";
        }
        else if(d=='*')
        {
                c=a*b;
                cout<<fixed<<setprecision(4)<<a<<" * "<<b<<" = "<<c<<"\n";
        }
        else if(d=='/')
        {
                if(b==0)
                {
                        cout<<"ERROR"<<"\n";
                }
                else//(b!=0)
                {
                        c=a/b;
                        cout<<fixed<<setprecision(4)<<a<<" / "<<b<<" = "<<c<<"\n";
                }
        }
    return 0;
}

範例輸入輸出都沒問題，但驗證沒有通過，我不曉得我的程式問題出在哪裡，請大家幫忙!!
請示用插入代碼功能插入程式碼
By Sylveon

Sylveon

沒事請別用float找自己麻煩

[C++] 純文本查看 復制代碼

#include<iostream>
#include<iomanip>
using namespace std;
 
int main()
{
	//沒事別用float找自己麻煩
	//小數用double就對了 
	double a,b,c;
	char d;
	//cin 不用fixed>>setprecision(4)>> 
	//cout 設定一次 setprecision 會保持有效 
	cout<<fixed<<setprecision(4);
	cin>>a>>d>>b;
	if(d=='+')
	{
        c=a+b;
        cout<<a<<" + "<<b<<" = "<<c<<"\n";
	}
	else if(d=='-')
	{
        c=a-b;
        cout<<a<<" - "<<b<<" = "<<c<<"\n";
	}
	else if(d=='*')
	{
        c=a*b;
        cout<<a<<" * "<<b<<" = "<<c<<"\n";
	}
	else// if(d=='/')
	{
        if(b==0)
        {
        	//不用分開 
            cout<<"ERROR\n";
        }
        else//(b!=0)
        {
            c=a/b;
            cout<<a<<" / "<<b<<" = "<<c<<"\n";
        }
	}
    return 0;
}

jill880829

調整後就OK了，感謝不盡