atcoder/abc027C

Author: xirc

atcoder/abc027/C/main.cpp

@@ -0,0 +1,42 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+using ll = int64_t;
+using ff = long double;
+
+int bits(ll N) {
+    int bc = 0;
+    while (N > 0) {
+        N >>= 1;
+        ++bc;
+    }
+    return bc;
+}
+
+bool solve(ll N) {
+    int const M = bits(N);
+    ll v = 1;
+    int i = 0;
+    for (; v <= N; ++i) {
+        v <<= 1;
+        if (i % 2 == 0 && M % 2 == 1) {
+            v += 1;
+        }
+        if (i % 2 == 1 && M % 2 == 0) {
+            v += 1;
+        }
+    }
+    return i % 2 == 0;
+}
+
+int main() {
+    ios_base::sync_with_stdio(false);
+    cin.tie(0); cout.tie(0);
+
+    ll N;
+    cin >> N;
+    auto ans = solve(N) ? "Takahashi" : "Aoki";
+    cout << ans << endl;
+
+    return 0;
+}