Below is the link to the question:
Below is my code in which i have written all the conditions but iam getting wrong answer.
I dont know in which case iam getting wrong answer.
#include<iostream>
#include<cstdio>
#define FAST_IO ios_base::sync_with_stdio(false);cin.tie(NULL);
using namespace std;
int main()
{
FAST_IO
int T;
long int a,b,c,d;
cin>>T;
while(T--)
{
cin>>a>>b>>c>>d;
int count=0;
if((a>0) && (b>0) && (c>0) && (d>0))
cout<<"No"<<"\n";
else if((a<0) && (b<0) && (c<0) &&(d<0))
cout<<"No"<<"\n";
else if((a==0) || (b==0)||( c==0) || (d==0))
cout<<"Yes"<<"\n";
else
{
if(a>0)
count++;
if(b>0)
count++;
if(c>0)
count++;
if(d>0)
count++;
//cout<<count<<"\n";
if(count == 1)
{
if(a>0)
{
if((a+b+c+d==0) || (a+b+c==0) || (a+c+d ==0) ||(a+b+d==0) ||(a+b==0)||(a+c==0)||(a+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(b>0)
{
if((b+a+c+d==0) || (b+a+c==0) || (b+c+d ==0) ||(b+a+d==0) ||(a+b==0)||(b+c==0)||(b+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(c>0)
{
if((c+a+b+d==0) || (b+a+c==0) || (b+c+d ==0) ||(c+a+d==0) ||(c+b==0)||(a+c==0)||(c+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else
{
if((c+a+b+d==0) || (d+a+c==0) || (b+c+d ==0) ||(c+a+d==0) ||(c+d==0)||(a+d==0)||(b+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
}
else if(count == 2)
{
if(a>0 && b>0)
{
if((a+b+c+d==0) || (a+b+c==0) ||(a+b+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(a>0 && c>0)
{
if((a+b+c+d==0) || (a+b+c==0) ||(a+c+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(a>0 && d>0)
{
if((a+b+c+d==0) || (a+d+c==0) ||(a+b+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(b>0 && c>0)
{
if((a+b+c+d==0) || (a+b+c==0) ||(c+b+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(b>0 && d>0)
{
if((a+b+c+d==0) || (a+d+b==0) ||(c+b+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(c>0 && d>0)
{
if((a+b+c+d==0) || (a+d+c==0) ||(c+b+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
}
else
{
if(a>0 &&b>0 &&c>0)
{
if((a+b+c+d==0) ||(a+d==0) ||(b+d==0) ||(c+d==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(a>0&&c>0&&d>0)
{
if((a+b+c+d==0) ||(b+d==0) ||(b+c==0) ||(a+b==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
else if(b>0 &&c>0&&d>0)
{
if((a+b+c+d==0) ||(d+a==0) ||(c+a==0) ||(a+b==0))
cout<<"Yes"<<"\n";
else
cout<<"No"<<"\n";
}
}
}
}
return 0;
}