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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#618345#8834. Formal Fringucup-team2432AC ✓30ms19268kbC++171.6kb2024-10-06 21:10:552024-10-06 21:10:59

Judging History

你现在查看的是最新测评结果

  • [2024-10-06 21:10:59]
  • 评测
  • 测评结果:AC
  • 用时:30ms
  • 内存:19268kb
  • [2024-10-06 21:10:55]
  • 提交

answer

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/hash_policy.hpp>
#define ll long long
#define all(v) v.begin(),v.end()
#define sz(v) ((ll)v.size())
#define V vector
#define vi V<int>
#define vll V<ll>
#define eb emplace_back
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define se second
#define A array
#define pb push_back
#define mset multiset
#define gpumap __gnu_pbds::gp_hash_table
#define ccumap __gnu_pbds::cc_hash_table
#define ui unsigned int
#define ull unsigned ll
#define i128 __int128
#define cerr if (test) cerr
#define freopen if (test) freopen
#define whtest if (test)
using namespace std;

const int test = 0;

namespace jhsy {
	constexpr int P = 998244353;
	const int N = 1e6;
	A<ll,N+1> ans,c;
	void init(const int n = N) {
		c[0] = 1;
		for (int i = 1; i <= n; i++) {
			if (i%2 == 1) {
				c[i] = c[i-1];
			}
			else {
				c[i] = (c[i-1]+c[i/2])%P;
			}
		}
		ans[0] = 1;
		for (int i = 1; i <= n; i++) {
			int x = __lg(i);
			if (i == (1<<x)) {
				ans[i] = 1;
			}
			else if (i+1 == (2<<x)) {
				ans[i] = c[i];
			}
			else if (i%2 == 1) {
				ans[i] = ans[i-1];
			}
			else {
				ans[i] = (ans[i-1]+ans[i/2])%P;
			}
		}
	}
	void main() {
		int n;
		cin >> n;
		for (int i = 1; i <= n; i++) {
			cout << ans[i] << " \n"[i == n];
		}
	}
}

int main() {
	freopen("test.in","r",stdin);
	freopen("test.out","w",stdout);
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cout << fixed << setprecision(20);

	jhsy::init();

	int T = 1;
//	cin >> T;
	while (T--) {
		jhsy::main();
	}

	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 4ms
memory: 19268kb

input:

10

output:

1 1 2 1 1 3 6 1 1 2

result:

ok 10 numbers

Test #2:

score: 0
Accepted
time: 4ms
memory: 19208kb

input:

70

output:

1 1 2 1 1 3 6 1 1 2 2 5 5 11 26 1 1 2 2 4 4 6 6 11 11 16 16 27 27 53 166 1 1 2 2 4 4 6 6 10 10 14 14 20 20 26 26 37 37 48 48 64 64 80 80 107 107 134 134 187 187 353 1626 1 1 2 2 4 4 6

result:

ok 70 numbers

Test #3:

score: 0
Accepted
time: 30ms
memory: 19264kb

input:

1000000

output:

1 1 2 1 1 3 6 1 1 2 2 5 5 11 26 1 1 2 2 4 4 6 6 11 11 16 16 27 27 53 166 1 1 2 2 4 4 6 6 10 10 14 14 20 20 26 26 37 37 48 48 64 64 80 80 107 107 134 134 187 187 353 1626 1 1 2 2 4 4 6 6 10 10 14 14 20 20 26 26 36 36 46 46 60 60 74 74 94 94 114 114 140 140 166 166 203 203 240 240 288 288 336 336 400 ...

result:

ok 1000000 numbers

Extra Test:

score: 0
Extra Test Passed