feat: day 14 easy solution updated

easy/day_14/solution.cpp

@@ -1 +1,51 @@
-//write your code here
+#include <bits/stdc++.h>
+using namespace std;
+int main()
+{
+    int t;
+    cin >> t;
+    while (t--)
+    {
+        int n;
+        cin >> n;
+        int arr[n];
+        int count = 0;
+        for (int i = 0 ; i < n; i++)
+        {
+            cin >> arr[i];
+            if (arr[i] == 2)
+            {
+                count++;
+            }
+        }
+        if (n == 1)
+        {
+            cout << -1 << endl;
+            continue;
+            ;
+        }
+        if (count % 2 == 1)
+        {
+            cout << -1 << endl;
+            continue;
+        }
+
+        else
+        {
+            int count2 = 0;
+            int i = 0;
+            while (count2 <(count / 2))
+            {
+                if (arr[i] == 2)
+                {
+                    count2++;
+                }
+                i++;
+            }
+            if (i == 0)
+                i++;
+
+            cout << i << endl;
+        }
+    }
+}