1230A Dawid and Bags of Candies.cpp

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b,c,d;
    cin>>a>>b>>c>>d;
    if(a+b==c+d)
    {
        cout<<"YES"<<endl;
    }
    else if(a+c==b+d)
    {
        cout<<"YES"<<endl;
    }
    else if(a+d==b+c)
    {
        cout<<"YES"<<endl;
    }
    else if(a==b+c+d)
    {
        cout<<"YES"<<endl;
    }
    else if(d==a+b+c)
    {
        cout<<"YES"<<endl;
    }
    else if(b==a+d+c)
    {
        cout<<"YES"<<endl;
    }
    else if(c==a+d+b)
    {
        cout<<"YES"<<endl;
    }
    else
    {
        cout<<"NO"<<endl;
    }
    return 0;
}