oj.uz

답안 #1116727

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1116727 2024-11-22T08:57:29 Z vjudge1 Nice sequence (IZhO18_sequence) C++17
0 / 100
 3 ms 764 KB 
#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;
int pref[N];
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;
	// }
	if(n < m) {
		int mxx = 0;
		vector<int> vec;
		for(int jj = 1; jj <= N; jj++) { 
			int x = jj, y = -(jj * n + 1);
			int pos = N;
			for(int i = 1; i < N; i++) {
				int j = (i % n == 0 ? y : x);
				pref[i] = pref[i - 1] + j;
				if(i >= n && (pref[i] - pref[i - n]) >= 0) {
					pos = i - 1;
					break;
				}
				if(i >= m && (pref[i] - pref[i - m]) <= 0) {
					pos = i - 1;
					break;
				}
			}
			if(mxx < pos) {
				mxx = pos;
				vec.clear();
				for(int i = 1; i <= pos; i++) {
					vec.push_back((i % n == 0 ? y : x));
				}
			}
		}
		cout << mxx << '\n';
		for(auto j : vec)cout << j << ' ';
		cout << '\n';
	}else {
		int mxx = 0;
		vector<int> vec;
		for(int jj = 1; jj <= N; jj++) {
			int x = -jj, y = jj * m + 1;
			int pos = N;
			for(int i = 1; i < N; i++) {
				int j = (i % m == 0 ? y : x);
				pref[i] = pref[i - 1] + j;
				if(i >= n && (pref[i] - pref[i - n]) >= 0) {
					pos = i - 1;
					break;
				}
				if(i >= m && (pref[i] - pref[i - m]) <= 0) {
					pos = i - 1;
					break;
				}
			}
			if(mxx < pos) {
				mxx = pos;
				vec.clear();
				for(int i = 1; i <= pos; i++) {
					vec.push_back((i % m == 0 ? y : x));
				}
			}
		}
		cout << mxx << '\n';
		for(auto j : vec)cout << j << ' ';
		cout << '\n';
	}
}
signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	Freopen();
	int T = 1;
	cin>>T;
	while(T --)solve();
}
/*

*/

Compilation message

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
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 3 ms 592 KB Execution killed with signal 8
2 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 3 ms 612 KB Execution killed with signal 8
2 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 2 ms 592 KB Execution killed with signal 8
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 3 ms 764 KB Execution killed with signal 8
2 Halted 0 ms 0 KB -

Subtask #5
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 3 ms 592 KB Execution killed with signal 8
2 Halted 0 ms 0 KB -

Subtask #6
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 3 ms 592 KB Execution killed with signal 8
2 Halted 0 ms 0 KB -

Subtask #7
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 3 ms 592 KB Execution killed with signal 8
2 Halted 0 ms 0 KB -