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solution to TREE2 codechef #16

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solution to TREE2 codechef #16

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31 changes: 31 additions & 0 deletions TREE2.cpp
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Original file line number Diff line number Diff line change
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#include<bits/stdc++.h>
using namespace std;

#define ll long long
#define fast ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
#define ve vector<int>
#define vl vector<long long int>
#define pb push_back
#define fo(i,a,n) for(i=a;i<n;i++)

int main()
{
ll t;
cin>>t;
while(t--)
{
ll n;
cin>>n;
vl v(n);
ll i;
fo(i,0,n) cin>>v[i];
set <ll, greater <ll> > s1;
fo(i,0,n) {
if(v[i]!=0)
s1.insert(v[i]);
}


cout<<(s1.size())<<endl;
}
}