From 727a49a9f7afde9a60835ae83050fc45d27f89ee Mon Sep 17 00:00:00 2001
From: tomarviii88 <43980170+tomarviii88@users.noreply.github.com>
Date: Fri, 2 Oct 2020 14:34:08 +0530
Subject: [PATCH] solution to TREE2 codechef

---
 TREE2.cpp | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 TREE2.cpp

diff --git a/TREE2.cpp b/TREE2.cpp
new file mode 100644
index 0000000..a3c0d6b
--- /dev/null
+++ b/TREE2.cpp
@@ -0,0 +1,31 @@
+#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;
+    }
+}