#include <bits/stdc++.h>
using namespace std;
const int N = 1e7 + 10;
int n, q;
vector<int> p;
vector<int> v;
int cnt[N];
int prime[N];
int prv[N];
int dp[N];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> n >> q;
p.resize(n);
for(int i = 0; i < n; i++) cin >> p[i];
for(int i = p.size() - 1; i >= 0; i--) {
for(int j = p[i]; j < N; j += p[i]) {
if(prime[j] == 0) {
cnt[j]++;
prime[j] = p[i];
}
}
}
cnt[0]++;
prime[0] = p.back();
for(int i = 0; i < N; i++) for(int j = 0; j < cnt[i]; j++) v.push_back(i);
int j = 0;
for(int i = 1; i < N; i++) {
while(v[j] + prime[v[j]] <= i) j++;
prv[i] = v[j];
}
for(int i = 1; i < N; i++) {
if(prv[i] == i) dp[i] = -1;
else dp[i] = dp[prv[i]] + 1;
}
while(q--) {
int x;
cin >> x;
if(x < p.back()) cout << "1\n";
else if(dp[x] == -1) cout << "oo\n";
else cout << dp[x] << "\n";
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
156 ms |
163556 KB |
Output isn't correct |
| 2 |
Correct |
225 ms |
185404 KB |
Output is correct |
| 3 |
Correct |
216 ms |
181388 KB |
Output is correct |
| 4 |
Correct |
134 ms |
159884 KB |
Output is correct |
| 5 |
Correct |
218 ms |
167300 KB |
Output is correct |
| 6 |
Incorrect |
172 ms |
163616 KB |
Output isn't correct |
| 7 |
Correct |
221 ms |
181472 KB |
Output is correct |
| 8 |
Correct |
250 ms |
186320 KB |
Output is correct |
| 9 |
Correct |
275 ms |
189080 KB |
Output is correct |
| 10 |
Correct |
328 ms |
190048 KB |
Output is correct |
| 11 |
Correct |
372 ms |
184360 KB |
Output is correct |
| 12 |
Correct |
131 ms |
159024 KB |
Output is correct |
| 13 |
Correct |
460 ms |
193360 KB |
Output is correct |
| 14 |
Correct |
441 ms |
193376 KB |
Output is correct |
| 15 |
Correct |
270 ms |
184496 KB |
Output is correct |
| 16 |
Correct |
268 ms |
185344 KB |
Output is correct |
| 17 |
Correct |
245 ms |
167160 KB |
Output is correct |
| 18 |
Correct |
166 ms |
159888 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
183 ms |
163616 KB |
Output is correct |
| 2 |
Correct |
197 ms |
166040 KB |
Output is correct |
| 3 |
Correct |
466 ms |
193932 KB |
Output is correct |
| 4 |
Correct |
270 ms |
172792 KB |
Output is correct |
| 5 |
Correct |
374 ms |
188460 KB |
Output is correct |
| 6 |
Correct |
231 ms |
180376 KB |
Output is correct |
| 7 |
Correct |
176 ms |
163588 KB |
Output is correct |
| 8 |
Correct |
263 ms |
171092 KB |
Output is correct |
| 9 |
Correct |
412 ms |
190600 KB |
Output is correct |
| 10 |
Correct |
477 ms |
194052 KB |
Output is correct |
| 11 |
Correct |
435 ms |
193676 KB |
Output is correct |
| 12 |
Correct |
360 ms |
186796 KB |
Output is correct |
| 13 |
Correct |
162 ms |
166484 KB |
Output is correct |
| 14 |
Correct |
235 ms |
172812 KB |
Output is correct |
| 15 |
Correct |
403 ms |
192748 KB |
Output is correct |
| 16 |
Correct |
196 ms |
166084 KB |
Output is correct |
| 17 |
Correct |
420 ms |
192924 KB |
Output is correct |
| 18 |
Correct |
401 ms |
191364 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
379 ms |
193308 KB |
Output is correct |
| 2 |
Correct |
429 ms |
193860 KB |
Output is correct |
| 3 |
Correct |
482 ms |
194200 KB |
Output is correct |
| 4 |
Correct |
320 ms |
188352 KB |
Output is correct |
| 5 |
Correct |
206 ms |
166844 KB |
Output is correct |
| 6 |
Correct |
408 ms |
191776 KB |
Output is correct |
| 7 |
Correct |
334 ms |
185336 KB |
Output is correct |
| 8 |
Correct |
381 ms |
193352 KB |
Output is correct |
| 9 |
Correct |
392 ms |
193292 KB |
Output is correct |
| 10 |
Correct |
344 ms |
184228 KB |
Output is correct |
| 11 |
Correct |
297 ms |
180164 KB |
Output is correct |
| 12 |
Correct |
386 ms |
191448 KB |
Output is correct |
| 13 |
Correct |
410 ms |
193000 KB |
Output is correct |
| 14 |
Correct |
338 ms |
191324 KB |
Output is correct |
| 15 |
Correct |
409 ms |
193060 KB |
Output is correct |
| 16 |
Correct |
417 ms |
193324 KB |
Output is correct |
| 17 |
Correct |
369 ms |
189184 KB |
Output is correct |
| 18 |
Correct |
438 ms |
193968 KB |
Output is correct |
| 19 |
Correct |
171 ms |
173472 KB |
Output is correct |
| 20 |
Correct |
477 ms |
193980 KB |
Output is correct |
| 21 |
Correct |
355 ms |
192752 KB |
Output is correct |
| 22 |
Correct |
519 ms |
194396 KB |
Output is correct |
| 23 |
Correct |
238 ms |
168096 KB |
Output is correct |
| 24 |
Correct |
186 ms |
164460 KB |
Output is correct |
| 25 |
Correct |
363 ms |
187052 KB |
Output is correct |
| 26 |
Correct |
345 ms |
188408 KB |
Output is correct |
| 27 |
Correct |
475 ms |
194580 KB |
Output is correct |
| 28 |
Correct |
227 ms |
171136 KB |
Output is correct |
| 29 |
Correct |
472 ms |
191224 KB |
Output is correct |
| 30 |
Correct |
423 ms |
189764 KB |
Output is correct |
| 31 |
Correct |
267 ms |
172100 KB |
Output is correct |
| 32 |
Correct |
282 ms |
175912 KB |
Output is correct |
| 33 |
Correct |
154 ms |
161380 KB |
Output is correct |
| 34 |
Correct |
373 ms |
185268 KB |
Output is correct |
| 35 |
Correct |
216 ms |
171800 KB |
Output is correct |
| 36 |
Correct |
450 ms |
194144 KB |
Output is correct |
| 37 |
Correct |
212 ms |
166812 KB |
Output is correct |
| 38 |
Correct |
428 ms |
191744 KB |
Output is correct |
| 39 |
Correct |
202 ms |
166388 KB |
Output is correct |
| 40 |
Correct |
406 ms |
190144 KB |
Output is correct |
| 41 |
Correct |
363 ms |
188428 KB |
Output is correct |
| 42 |
Correct |
446 ms |
193972 KB |
Output is correct |
