Submission #614623

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
614623	2022-07-31T04:12:55 Z	1bin	Strongbox (POI11_sej)	C++14	100 / 100	827 ms	2688 KB

#include <bits/stdc++.h>
 
using namespace std;
 
#define all(v) v.begin(), v.end()
typedef long long ll;
const int NMAX = 3e5 + 5;
ll n, x, k, m[NMAX], sz;
vector<ll> da, db;
 
ll gcd(ll a, ll b){
    if(!b) return a;
    return gcd(b,  a % b);
}
 
int chk(ll& x){
    for(int i = 0; i < sz; i++)
        if(m[i] % x == 0) return 0;
    return 1;
}
 
int main(void){
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    
    cin >> n >> k;
    for(int i = 0; i < k; i++) cin >> m[i], m[i] = gcd(m[i], n);
    sort(m, m + k - 1);
    for(int i = 0; i < k - 1; i++) if(m[i] != m[i + 1]) m[sz++] = m[i];
    
    x = m[k - 1];
    for(ll i = 1; i * i <= x; i++)
        if(x % i == 0){
            da.emplace_back(i);
            db.emplace_back(x / i);
        }
    for(ll& x : da) if(chk(x)) {
        cout << n / x; return 0;
    }
    for(int i = db.size() - 1; i >= 0; i--)
        if(chk(db[i])) {
            cout << n / db[i]; return 0;
        }
    return 0;
}

Subtask #1
7.0 / 7.0

#	Verdict	Memory	Grader output
1	Correct	212 KB	Output is correct
2	Correct	212 KB	Output is correct
3	Correct	212 KB	Output is correct
4	Correct	212 KB	Output is correct

Subtask #2
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct

Subtask #3
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct

Subtask #4
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct

Subtask #5
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	9 ms	212 KB	Output is correct
4	Correct	11 ms	420 KB	Output is correct

Subtask #6
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	2 ms	340 KB	Output is correct
3	Correct	1 ms	256 KB	Output is correct
4	Correct	77 ms	520 KB	Output is correct

Subtask #7
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	21 ms	336 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	91 ms	316 KB	Output is correct
4	Correct	62 ms	516 KB	Output is correct

Subtask #8
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	68 ms	320 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	80 ms	528 KB	Output is correct

Subtask #9
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	2 ms	340 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	91 ms	516 KB	Output is correct

Subtask #10
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	3 ms	340 KB	Output is correct
3	Correct	60 ms	212 KB	Output is correct
4	Correct	93 ms	528 KB	Output is correct

Subtask #11
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	94 ms	1104 KB	Output is correct
2	Correct	27 ms	1076 KB	Output is correct
3	Correct	309 ms	1276 KB	Output is correct
4	Correct	827 ms	1712 KB	Output is correct
5	Correct	216 ms	1440 KB	Output is correct

Subtask #12
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	67 ms	1996 KB	Output is correct
2	Correct	70 ms	1868 KB	Output is correct
3	Correct	149 ms	1924 KB	Output is correct
4	Correct	668 ms	1844 KB	Output is correct
5	Correct	255 ms	2148 KB	Output is correct

Subtask #13
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	100 ms	2272 KB	Output is correct
2	Correct	89 ms	2264 KB	Output is correct
3	Correct	345 ms	2532 KB	Output is correct
4	Correct	769 ms	2524 KB	Output is correct
5	Correct	299 ms	2580 KB	Output is correct

Subtask #14
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	70 ms	2276 KB	Output is correct
2	Correct	89 ms	2204 KB	Output is correct
3	Correct	482 ms	2460 KB	Output is correct
4	Correct	801 ms	2556 KB	Output is correct
5	Correct	291 ms	2688 KB	Output is correct

Submission #614623

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