module.exports = {
//param A : array of integers
//return an integer
solve : function(A){
let lteven=0;
let rteven=0;
let ltodd=0;
let rtodd=0;
let count=0;
for(let i=0;i<A.length;i++)
{
if(i%2===0)
{
rteven+=A[i];
}
else
{
rtodd+=A[i];
}
}
for(let i=0;i<A.length;i++)
{
if(i%2===0)
{
rteven-=A[i]
}
else
{
rtodd-=A[i];
}
if((lteven+rtodd)===(rteven + ltodd))
{
count++
}
if(i%2===0)
{
lteven+=A[i];
}
else
{
ltodd+=A[i];
}
}
return count;
}
};