B - Patchouli's Magical Talisman

https://codeforces.com/contest/1688/submission/159633612

Codeforces/1688/B/B.cpp

@@ -0,0 +1,39 @@
+#include <iostream>
+#include <algorithm>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 2e5 + 5;
+
+int t, n, a[N];
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> t;
+
+    while (t--) {
+        int ans = 0;
+
+        cin >> n;
+
+        for (int i = 1; i <= n; i++) {
+            cin >> a[i];
+
+            a[i] = __builtin_ffs(a[i]) - 1;
+        }
+
+        ans = std::max(*std::min_element(a + 1, a + 1 + n) - 1, 0);
+
+        for (int i = 1; i <= n; i++) {
+            if (a[i] > 0) ans++;
+        }
+
+        cout << ans << endl;
+    }
+
+    return 0;
+}