Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
1558 孙浚轩 09计算算数表达式 C++ Compile Error 0 MS 0 KB 1609 2023-10-14 23:14:45

Tests(0/0):

Code:

#include<iostream> #include<iomanip> #include<cstdio> #include<cmath> using namespace std; int main() { /*string sc; cout<<"是否开启科学计算器(yes/no)"; cin>>sc; if(sc=="yes") { cout<<"敬请期待"; } else if(sc=="no") {*/ double a,b; int r; char op; //cout<<"请输入:a op(+-*/%) b"; cin>>a>>op>>b; //cout<<"保留多少位小数?(最多16位)"<<endl; cin>>r; if (r>16) { cout<<"超出可保留小数位上限"; } else if (r<0) { cout<<"格式错误"; } else { if (op=='+') { cout<<fixed<<setprecision(r)<<a+b; } else if (op=='-') { cout<<fixed<<setprecision(r)<<a-b; } else if (op=='*') { cout<<fixed<<setprecision(r)<<a*b; } else if (op=='/') { if (b!=0) { cout<<fixed<<setprecision(r)<<a/b; } else { cout<<"错误"; } } else if (op=='%') { cout<<fixed<<setprecision(r)<<a-b*(long long)(a/b); } else { cout<<"格式错误"; } } } else { cout<<"格式错误"; } return 0; }

Run Info:

Main.cc:67:5: error: expected unqualified-id before 'else'
     else
     ^
Main.cc:71:5: error: expected unqualified-id before 'return'
     return 0;
     ^
Main.cc:72:1: error: expected declaration before '}' token
 }
 ^