oj.uz

답안 #389966

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
389966 2021-04-15T01:07:33 Z abc864197532 Binary Subsequences (info1cup17_binary) C++17
100 / 100
 685 ms 360 KB 
#include <bits/stdc++.h>
using namespace std;
#define lli long long int
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define test(x) cout << #x << ' ' << x << endl
#define printv(x) { \
    for (auto a : x) cout << a << ' '; \
    cout << endl; \
}
#define pii pair<int, int>
#define pll pair<lli, lli>
#define X first
#define Y second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
const int N = 512, abc = 864197532;

int chk(int l, int r) {
    int len = 0;
    while (l > 1 && r > 1) {
        if (l > r) {
            len += l / r;
            l %= r;
        } else {
            len += r / l;
            r %= l;
        }
    }
    return len + r + l - 2;
}

string gen(int l, int r) {
    string ans;
    while (l > 1 || r > 1) {
        if (l > r) {
            ans += "1 ";
            l -= r;
        } else {
            ans += "0 ";
            r -= l;
        }
    }
    return ans;
}

int main () {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int t;
    cin >> t;
    while (t--) {
        int x;
        cin >> x;
        int ans1 = 0, ans2 = 1 << 30, bestl = -1;
        for (int l = 1; l < x + 2 - l; ++l) if (__gcd(l, x + 2 - l) == 1) {
            int re = chk(l, x + 2 - l);
            ans1++;
            if (ans2 > re) {
                bestl = l;
                ans2 = re;
            }
        }
        cout << ans1 * 2 << '\n' << gen(bestl, x + 2 - bestl) << '\n';
    }
}

Subtask #1
43.0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 64 ms 360 KB Output is correct

Subtask #2
39.0 / 39.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 204 KB Output is correct
2 Correct 53 ms 292 KB Output is correct
3 Correct 48 ms 204 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 504 ms 204 KB Output is correct
2 Correct 685 ms 204 KB Output is correct
3 Correct 605 ms 300 KB Output is correct