Add 22825.cpp

22xxx/22825.cpp

@@ -0,0 +1,35 @@
+#include <algorithm>
+#include <iostream>
+using namespace std;
+
+inline int cube(int n) {
+  return n * n * n;
+}
+
+inline int cube_root(int n) {
+  int x = 0;
+  while (x * x * x <= n) x++;
+  return --x;
+}
+
+bool solve(void) {
+  int n; cin >> n;
+  if (n == 0) return false;
+
+  int ans = cube(n);
+  for (int i=1; i<n; i++) {
+    int x = cube(n) - cube(i);
+    ans = min(ans, x - cube(cube_root(x)));
+  }
+  cout << ans << "\n";
+
+  return true;
+}
+
+int main(void) {
+  ios::sync_with_stdio(false);
+  cin.tie(nullptr);
+
+  while (solve());
+  return 0;
+}