oj.uz

Submission #440801

# Submission time Handle Problem Language Result Execution time Memory
440801 2021-07-03T07:52:36 Z 8e7 Nice sequence (IZhO18_sequence) C++14
0 / 100
 1 ms 316 KB 
//Challenge: Accepted
#include <iostream>
#include <vector>
#include <iomanip>
#include <algorithm>
#include <queue>
#include <cmath>
#include <set>
#include <utility>
#include <assert.h>
using namespace std;
void debug() {cout << endl;}
template <class T, class ...U> void debug(T a, U ... b) { cout << a << " "; debug(b...);}
template <class T> void pary(T l, T r) {
	while (l != r) {cout << *l << " ";l++;}
	cout << endl;
}
#define ll long long
#define ld long double
#define maxn 100005
#define mod 1000000007
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
int flip = 0;
void solve(int n, int m, vector<bool> &res) {
	int rev = 0;
	if (n > m) swap(n, m), rev = 1; //(assuming n <= m)
	if (m % n == 0) { // ans = m - 1
		for (int i = 0;i < m - 1;i++) {
			if (n != 1 && i % n == n - 1) res.push_back(1);
			else res.push_back(0);
		}
	} else {
		solve(n, m - n, res);
		for (int i = 0;i < n;i++) {
			res.push_back((res.size() >= n ? res[res.size() - n] : 0));
		}
	}
	if (rev) {
		for (int i = 0;i < res.size();i++) res[i] = (res[i] ? 0 : 1);
	}
	//debug(n, m);
	//pary(res.begin(), res.end());
}
int main() {
	io
	int t;
	cin >> t;
	while (t--) {
		int n, m;
		cin >> n >> m;
		vector<bool> ans;
		solve(n, m, ans);
		cout << ans.size() << endl;
		ll cn = 0, cm = 0, an = 0, am = 0;
		if (n % m == 0 || m % n == 0) {
			an = -1, am = 1;
		} else {
			for (int i = 0;i < n;i++) cn += ans[i] == 0 ? 1 : 0;
			for (int i = 0;i < m;i++) cm += ans[i] == 0 ? 1 : 0;
			am = 8e7;
			ll lb = (ll)(cm - m) * am / cm, rb = (ll)(cn - n) * am/ cn;
			an = (lb + rb) / 2;
		}
		for (int i = 0;i < ans.size();i++) {
			cout << (ans[i] ? am : an) << " ";
		}
		cout << endl;
	}
}

Compilation message

sequence.cpp: In function 'void solve(int, int, std::vector<bool>&)':
sequence.cpp:38:30: warning: comparison of integer expressions of different signedness: 'std::vector<bool>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   38 |    res.push_back((res.size() >= n ? res[res.size() - n] : 0));
      |                   ~~~~~~~~~~~^~~~
sequence.cpp:42:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |   for (int i = 0;i < res.size();i++) res[i] = (res[i] ? 0 : 1);
      |                  ~~^~~~~~~~~~~~
sequence.cpp: In function 'int main()':
sequence.cpp:67:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |   for (int i = 0;i < ans.size();i++) {
      |                  ~~^~~~~~~~~~~~

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Ok
2 Correct 1 ms 204 KB Ok
3 Correct 1 ms 204 KB Ok
4 Correct 1 ms 312 KB Ok
5 Correct 1 ms 204 KB Ok
6 Correct 1 ms 204 KB Ok
7 Correct 1 ms 316 KB Ok
8 Correct 1 ms 204 KB Ok
9 Correct 1 ms 256 KB Ok
10 Incorrect 1 ms 204 KB there is incorrect sequence
11 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB there is incorrect sequence
2 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Ok
2 Correct 1 ms 204 KB Ok
3 Incorrect 1 ms 204 KB there is incorrect sequence
4 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB there is incorrect sequence
2 Halted 0 ms 0 KB -

Subtask #5
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Ok
2 Correct 1 ms 204 KB Ok
3 Correct 1 ms 204 KB Ok
4 Correct 1 ms 312 KB Ok
5 Correct 1 ms 204 KB Ok
6 Correct 1 ms 204 KB Ok
7 Correct 1 ms 316 KB Ok
8 Correct 1 ms 204 KB Ok
9 Correct 1 ms 256 KB Ok
10 Incorrect 1 ms 204 KB there is incorrect sequence
11 Halted 0 ms 0 KB -

Subtask #6
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Ok
2 Correct 1 ms 204 KB Ok
3 Correct 1 ms 204 KB Ok
4 Correct 1 ms 312 KB Ok
5 Correct 1 ms 204 KB Ok
6 Correct 1 ms 204 KB Ok
7 Correct 1 ms 316 KB Ok
8 Correct 1 ms 204 KB Ok
9 Correct 1 ms 256 KB Ok
10 Incorrect 1 ms 204 KB there is incorrect sequence
11 Halted 0 ms 0 KB -

Subtask #7
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Ok
2 Correct 1 ms 204 KB Ok
3 Correct 1 ms 204 KB Ok
4 Correct 1 ms 312 KB Ok
5 Correct 1 ms 204 KB Ok
6 Correct 1 ms 204 KB Ok
7 Correct 1 ms 316 KB Ok
8 Correct 1 ms 204 KB Ok
9 Correct 1 ms 256 KB Ok
10 Incorrect 1 ms 204 KB there is incorrect sequence
11 Halted 0 ms 0 KB -