Submission #1676504

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Source Code Expand

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

int main()
{
int A;
int B;
int C;
cin >> A;
cin >> B;
cin >> C;
if (A + B = C && A - B = C)
{
cout << "?" << endl;
}
else if (A + B = C)
{
cout << "+" << endl;
}
else if (A - B = C)
{
cout << "-" << endl;
}
else
{
cout << "!" << endl;
}
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:24: error: lvalue required as left operand of assignment
 if (A + B = C && A - B = C)
                        ^
./Main.cpp:17:16: error: lvalue required as left operand of assignment
 else if (A + B = C)
                ^
./Main.cpp:21:16: error: lvalue required as left operand of assignment
 else if (A - B = C)
                ^