Submission #167923

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
167923	2019-12-10T20:04:01 Z	Thuleanx	Strongbox (POI11_sej)	C++14	100 / 100	236 ms	6148 KB

#include <bits/stdc++.h>
using namespace std;

unordered_set<long long> vis;
vector<int> primes;
long long ans;

void brute_force(long long v, bool save) {
	if (save)
		ans = min(ans, v);
	vis.insert(v);
	for (long long p : primes)
		if (v%p==0 && !vis.count(v / p))
			brute_force(v/p, save);
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	int n; long long m; cin>>m>>n;
	long long a[n];
	for (int i = 0; i < n; i++) {
		cin>>a[i];
		a[i] = __gcd(a[i], m);
	}
	for (long long p = 2, x = a[n-1]; p*p <= x; p++) {
		if (x%p == 0) {
			primes.push_back(p);
			while (x%p == 0)
				x /= p;
		}
		if ((p+1)*(p+1)>x && x>1)
			primes.push_back(x);
	}
	ans = m;
	for (int i = 0; i < n; i++)
		brute_force(__gcd(a[i], a[n-1]), i == n-1);
	cout << m/ans << endl;

	return 0;
}

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct

Subtask #2
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct

Subtask #3
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct

Subtask #4
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	3 ms	504 KB	Output is correct

Subtask #5
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	14 ms	376 KB	Output is correct
4	Correct	6 ms	760 KB	Output is correct

Subtask #6
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	12 ms	1144 KB	Output is correct

Subtask #7
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	125 ms	424 KB	Output is correct
4	Correct	11 ms	1144 KB	Output is correct

Subtask #8
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	31 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	3 ms	376 KB	Output is correct
4	Correct	12 ms	1144 KB	Output is correct

Subtask #9
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	380 KB	Output is correct
3	Correct	3 ms	376 KB	Output is correct
4	Correct	12 ms	1016 KB	Output is correct

Subtask #10
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	89 ms	376 KB	Output is correct
4	Correct	13 ms	1148 KB	Output is correct

Subtask #11
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	72 ms	2168 KB	Output is correct
2	Correct	72 ms	2168 KB	Output is correct
3	Correct	82 ms	2680 KB	Output is correct
4	Correct	123 ms	3872 KB	Output is correct
5	Correct	83 ms	2936 KB	Output is correct

Subtask #12
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	151 ms	4608 KB	Output is correct
2	Correct	187 ms	4956 KB	Output is correct
3	Correct	145 ms	4344 KB	Output is correct
4	Correct	126 ms	4016 KB	Output is correct
5	Correct	151 ms	4700 KB	Output is correct

Subtask #13
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	169 ms	5240 KB	Output is correct
2	Correct	236 ms	6148 KB	Output is correct
3	Correct	180 ms	5496 KB	Output is correct
4	Correct	187 ms	5592 KB	Output is correct
5	Correct	184 ms	5624 KB	Output is correct

Subtask #14
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	162 ms	4856 KB	Output is correct
2	Correct	236 ms	5904 KB	Output is correct
3	Correct	188 ms	5380 KB	Output is correct
4	Correct	193 ms	5752 KB	Output is correct
5	Correct	184 ms	5624 KB	Output is correct

Submission #167923

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