Submission #1109162

#	Time	Username	Problem	Language	Result	Execution time	Memory
1109162		stdfloat	Nice sequence (IZhO18_sequence)	C++17	15 / 100	7 ms	1004 KiB

sequence

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

#define int long long

#define sz(v)	(int)(v).size()

void solve() {
	int n, m;
	cin >> n >> m;

	bool tr = false;
	if (n > m) {
		tr = true;
		swap(n, m);
	}

	vector<int> v;
	if (!(m % n)) {
		for (int i = 1; i < m; i++)
			v.push_back(-1);
	}
	else {
		int x = m / n + 1, z = x * (n - 1);
		for (int i = 1; i <= z; i++) {
			for (int j = 1; j < n; j++)
				v.push_back(x);

			if (i < z) v.push_back(-(x * (n - 1) + 1));
		}
	}

	if (tr) {
		swap(n, m);
		for (auto &i : v)
			i *= -1;
	}

	ll sm1 = 0, sm2 = 0;
	for (int i = 0; i < sz(v); i++) {
		sm1 += v[i] - (n <= i ? v[i - n] : 0);
		sm2 += v[i] - (m <= i ? v[i - m] : 0);
	
		if (n - 1 <= i) assert(sm1 < 0);
		if (m - 1 <= i) {
			if (sm2 <= 0) cout << "sad\n";
			assert(sm2 > 0);
		}
	}

	cout << sz(v) << '\n';
	for (auto i : v)
		cout << i << ' ';
	if (!v.empty()) cout << '\n';
}

int32_t main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);

	int T;
	cin >> T;
	while (T--) solve();
}

• Subtask 1: 6 / 6
• Subtask 2: 9 / 9
• Subtask 3: 0 / 14
• Subtask 4: 0 / 15
• Subtask 5: 0 / 14
• Subtask 6: 0 / 18
• Subtask 7: 0 / 24