B - Getting Zero

https://codeforces.com/contest/1661/submission/153184387

Codeforces/1661/B/B.cpp

@@ -0,0 +1,35 @@
+#include <cmath>
+#include <iostream>
+#include <limits>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+int n, x, ans, p[25];
+
+int main() {
+    std::ios::sync_with_stdio(false);
+
+    cin >> n;
+
+    for (int i = 1; i <= 16; i++) {
+        p[i] = 1 << 16 - i;
+    }
+
+    while (n--) {
+        ans = std::numeric_limits<int>::max();
+
+        cin >> x;
+
+        for (int i = 1; i <= 16; i++) {
+            ans = std::min(ans, i + (int)ceil(1.0 * x / p[i]) * p[i] - x);
+        }
+
+        cout << ans - 1 << ' ';
+    }
+
+    cout << endl;
+
+    return 0;
+}