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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#213840#2157. 数列nodgd100685ms8940kbC++11869b2024-11-13 21:40:282024-11-13 23:08:37

answer

#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 1000000 + 5;

int N, P;
int is_prime[MAX_N];
int a[MAX_N];


int main() {
	scanf("%d%d", &N, &P);
	for (int i = 2; i <= N; i ++) {
		is_prime[i] = 1;
	}
	for (int i = 2; i <= N; i ++) {
		if (is_prime[i]) {
			for (int j = i << 1; j <= N; j += i) {
				is_prime[j] = 0;
			}
		}
	}
	for (int i = 2; i <= N; i ++) {
		a[i] = N + i;
	}
	for (int i = 2; i <= N; i ++) {
		if (is_prime[i]) {
			int s = 0;
			for (int t = N / i; t; t /= i) {
				s += t;
			}
			int l = i - N % i;
			if (l < 2) l += i;
			assert(a[l] % i == 0);
			for (; s; l += i) {
				for (; s && a[l] % i == 0; s --) {
					a[l] /= i;
				}
			}
			assert(s == 0);
		}
	}
	int ans = 1;
	for (int i = 2; i <= N; i ++) {
		ans = 1ll * ans * a[i] % P;
	}
	printf("%d\n", ans);
	return 0;
}

详细

小提示:点击横条可展开更详细的信息

Test #1:

score: 5
Accepted
time: 0ms
memory: 1200kb

input:

921 998054347

output:

345389219

result:

ok single line: '345389219'

Test #2:

score: 5
Accepted
time: 1ms
memory: 1200kb

input:

926 998064329

output:

458756691

result:

ok single line: '458756691'

Test #3:

score: 5
Accepted
time: 1ms
memory: 1204kb

input:

1000 998074327

output:

457273797

result:

ok single line: '457273797'

Test #4:

score: 5
Accepted
time: 0ms
memory: 1196kb

input:

952 998084303

output:

329700115

result:

ok single line: '329700115'

Test #5:

score: 5
Accepted
time: 1ms
memory: 1200kb

input:

989 998094347

output:

94788253

result:

ok single line: '94788253'

Test #6:

score: 5
Accepted
time: 0ms
memory: 1200kb

input:

902 998104313

output:

911969455

result:

ok single line: '911969455'

Test #7:

score: 5
Accepted
time: 1ms
memory: 1196kb

input:

914 998114333

output:

827812986

result:

ok single line: '827812986'

Test #8:

score: 5
Accepted
time: 0ms
memory: 1204kb

input:

986 998124313

output:

169699253

result:

ok single line: '169699253'

Test #9:

score: 5
Accepted
time: 0ms
memory: 1200kb

input:

947 998134339

output:

761932751

result:

ok single line: '761932751'

Test #10:

score: 5
Accepted
time: 0ms
memory: 1196kb

input:

934 998144339

output:

42889072

result:

ok single line: '42889072'

Test #11:

score: 5
Accepted
time: 65ms
memory: 8940kb

input:

991572 998154343

output:

277089318

result:

ok single line: '277089318'

Test #12:

score: 5
Accepted
time: 69ms
memory: 8476kb

input:

932800 998164337

output:

945072504

result:

ok single line: '945072504'

Test #13:

score: 5
Accepted
time: 62ms
memory: 8256kb

input:

903603 998174341

output:

29916736

result:

ok single line: '29916736'

Test #14:

score: 5
Accepted
time: 66ms
memory: 8684kb

input:

958646 998184331

output:

802903490

result:

ok single line: '802903490'

Test #15:

score: 5
Accepted
time: 72ms
memory: 8872kb

input:

983016 998194349

output:

802900579

result:

ok single line: '802900579'

Test #16:

score: 5
Accepted
time: 60ms
memory: 8396kb

input:

922347 998204353

output:

228575331

result:

ok single line: '228575331'

Test #17:

score: 5
Accepted
time: 86ms
memory: 8820kb

input:

976053 998214317

output:

982618317

result:

ok single line: '982618317'

Test #18:

score: 5
Accepted
time: 70ms
memory: 8672kb

input:

957300 998224351

output:

514549818

result:

ok single line: '514549818'

Test #19:

score: 5
Accepted
time: 71ms
memory: 8392kb

input:

921760 998234353

output:

470386410

result:

ok single line: '470386410'

Test #20:

score: 5
Accepted
time: 60ms
memory: 8324kb

input:

912948 998244353

output:

129235345

result:

ok single line: '129235345'