Help me correct this code

Question

#include <iostream>
using namespace std;

int main()
{
cout << "char: " << sizeof(char) << endl;
cout << "int: " << sizeof(int) << endl;
cout << "float: " << sizeof(float) << endl;
cout << "double: " << sizeof(double) << endl;
int var = 50;
cout << "var: " << sizeof(var) << endl;
int a,b,c;
int a=10;
int b= 20;
int c= 30;
cout<< "value of sum"<< a+b+c<< endl;
cout << a+b+c<< sizeof(b)<<endl;

return 0;
}

Answer 1

You don't need to put 'int' for 'a' after you declare it, you should just asign it with a = 10 without 'int'

Answer 2

Thnx