Submission #1116685

#	Time	Username	Problem	Language	Result	Execution time	Memory
1116685		vjudge1	Nice sequence (IZhO18_sequence)	C++17	15 / 100	6 ms	848 KiB

sequence

#include <bits/stdc++.h>
#pragma optimize("g", on)
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
void Freopen () {
    #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    #endif
}
using namespace std;
#define fi first
#define se second
#define int long long
const int N = 2e3 + 7;

void solve() {
	int n, m;
	cin>>n>>m;
	if(min(n, m) == 2) {
		if(n == 2) {
			if(m % 2 == 0) {
				cout << m - 1 << '\n';
				for(int i = 1; i < m; i++)cout << -1 << ' ';
				cout << '\n';
			}else {
				cout << m << '\n';
				int x = m + 1, y = -(m + 2);
				for(int i = 1; i <= m; i++) {
					if(i % 2)cout << x << ' ';
					else cout << y << ' '; 
				}
				cout << '\n';
			}
		}else {
			if(n % 2 == 0) {
				cout << n - 1 << '\n';
				for(int i = 1; i < n; i++)cout << 1 << ' ';
				cout << '\n';
			}else {
				cout << n << '\n';
				int x = n + 2, y = -(n + 1);
				for(int i = 1; i <= n; i++) {
					if(i % 2)cout << y << ' ';
					else cout << x << ' '; 
				}
				cout << '\n';
			}
		}
		return;
	}
	if(__gcd(max(n, m), min(n, m)) == min(n, m)) {
		if(n < m) {
			cout << m - 1 << '\n';
			for(int i = 1; i < m; i++)cout << -1 << ' ';
			cout << '\n';
		}else {
			cout << n - 1 << '\n';
			for(int i = 1; i < n; i++)cout << 1 << ' ';
			cout << '\n';
		}
		return;
	}
}
signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	//Freopen();
	int T = 1;
	cin>>T;
	while(T --)solve();
}
/*

*/

Compilation message (stderr)

sequence.cpp:2: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    2 | #pragma optimize("g", on)
      | 
sequence.cpp: In function 'void Freopen()':
sequence.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sequence.cpp:11:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• 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