Submission #67534139

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Source Code Expand

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

ll a;
ll n;

bool ok(ll jin, ll x) {
	deque<ll> dq;

	while (x > 0) {
		dq.push_back(x % jin);
		x /= jin;
	}

	while (dq.size() > 1) {
		if (dq.front() != dq.back()) return false;

		dq.pop_front();
		dq.pop_back();
	}

	return true;
}

ll res = 0;

ll palextend(ll x, int flag, int zero) {
	deque<ll> dq;

	while (x > 0) {
		dq.push_front(x % 10);
		x /= 10;
	}

	int sz = dq.size();

	if (flag == 0) {
		for (int i = 0; i < sz; i++) {
			dq.push_back(dq[sz - 1 - i]);
		}
	}
	else if (flag == 1) {
		for (int i = 1; i < sz; i++) {
			dq.push_back(dq[sz - 1 - i]);
		}
	}

	ll res = 0;

	for (ll d : dq) {
		res *= 10;
		res += d;
	}

	return res;
}

void solve() {
	for (ll i = 0; i < sqrt(n) * 10; i++) {

			ll x1 = palextend(i, true, 0);
			ll x2 = palextend(i, false, 0);

			if (x1 <= n && ok(a, x1)) {
				res += x1;
				//cout << x1 << "\n";
			}

			if (x2 <= n && ok(a, x2)) {
				res += x2;
				//cout << x2 << "\n";
			}
	}
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(NULL);

	cin >> a >> n;

	solve();

	cout << res << "\n";

	return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘ll palextend(ll, int, int)’:
Main.cpp:29:34: warning: unused parameter ‘zero’ [-Wunused-parameter]
   29 | ll palextend(ll x, int flag, int zero) {
      |                              ~~~~^~~~

Judge Result