#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 |
145 ms |
163708 KB |
Output isn't correct |
| 2 |
Correct |
207 ms |
185376 KB |
Output is correct |
| 3 |
Correct |
195 ms |
181368 KB |
Output is correct |
| 4 |
Correct |
117 ms |
159820 KB |
Output is correct |
| 5 |
Correct |
184 ms |
167260 KB |
Output is correct |
| 6 |
Incorrect |
142 ms |
163504 KB |
Output isn't correct |
| 7 |
Correct |
197 ms |
181380 KB |
Output is correct |
| 8 |
Correct |
208 ms |
186444 KB |
Output is correct |
| 9 |
Correct |
254 ms |
189044 KB |
Output is correct |
| 10 |
Correct |
296 ms |
190044 KB |
Output is correct |
| 11 |
Correct |
268 ms |
184308 KB |
Output is correct |
| 12 |
Correct |
112 ms |
158976 KB |
Output is correct |
| 13 |
Correct |
388 ms |
193324 KB |
Output is correct |
| 14 |
Correct |
377 ms |
193468 KB |
Output is correct |
| 15 |
Correct |
238 ms |
184564 KB |
Output is correct |
| 16 |
Correct |
214 ms |
185460 KB |
Output is correct |
| 17 |
Correct |
183 ms |
167212 KB |
Output is correct |
| 18 |
Correct |
120 ms |
159824 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
159 ms |
163588 KB |
Output is correct |
| 2 |
Correct |
178 ms |
166072 KB |
Output is correct |
| 3 |
Correct |
415 ms |
193984 KB |
Output is correct |
| 4 |
Correct |
227 ms |
172776 KB |
Output is correct |
| 5 |
Correct |
336 ms |
188500 KB |
Output is correct |
| 6 |
Correct |
197 ms |
180368 KB |
Output is correct |
| 7 |
Correct |
154 ms |
163640 KB |
Output is correct |
| 8 |
Correct |
224 ms |
171032 KB |
Output is correct |
| 9 |
Correct |
374 ms |
190716 KB |
Output is correct |
| 10 |
Correct |
425 ms |
193972 KB |
Output is correct |
| 11 |
Correct |
456 ms |
193708 KB |
Output is correct |
| 12 |
Correct |
308 ms |
186740 KB |
Output is correct |
| 13 |
Correct |
157 ms |
166652 KB |
Output is correct |
| 14 |
Correct |
229 ms |
172848 KB |
Output is correct |
| 15 |
Correct |
492 ms |
192764 KB |
Output is correct |
| 16 |
Correct |
171 ms |
166068 KB |
Output is correct |
| 17 |
Correct |
404 ms |
192900 KB |
Output is correct |
| 18 |
Correct |
421 ms |
191348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
458 ms |
193384 KB |
Output is correct |
| 2 |
Correct |
552 ms |
193900 KB |
Output is correct |
| 3 |
Correct |
541 ms |
194028 KB |
Output is correct |
| 4 |
Correct |
363 ms |
188292 KB |
Output is correct |
| 5 |
Correct |
231 ms |
166804 KB |
Output is correct |
| 6 |
Correct |
436 ms |
191740 KB |
Output is correct |
| 7 |
Correct |
380 ms |
185224 KB |
Output is correct |
| 8 |
Correct |
446 ms |
193320 KB |
Output is correct |
| 9 |
Correct |
458 ms |
193332 KB |
Output is correct |
| 10 |
Correct |
346 ms |
184248 KB |
Output is correct |
| 11 |
Correct |
331 ms |
180228 KB |
Output is correct |
| 12 |
Correct |
406 ms |
191508 KB |
Output is correct |
| 13 |
Correct |
455 ms |
192844 KB |
Output is correct |
| 14 |
Correct |
368 ms |
191352 KB |
Output is correct |
| 15 |
Correct |
454 ms |
193052 KB |
Output is correct |
| 16 |
Correct |
452 ms |
193360 KB |
Output is correct |
| 17 |
Correct |
397 ms |
189252 KB |
Output is correct |
| 18 |
Correct |
523 ms |
193920 KB |
Output is correct |
| 19 |
Correct |
183 ms |
173464 KB |
Output is correct |
| 20 |
Correct |
487 ms |
194040 KB |
Output is correct |
| 21 |
Correct |
366 ms |
192720 KB |
Output is correct |
| 22 |
Correct |
525 ms |
194368 KB |
Output is correct |
| 23 |
Correct |
247 ms |
168108 KB |
Output is correct |
| 24 |
Correct |
184 ms |
164420 KB |
Output is correct |
| 25 |
Correct |
370 ms |
187040 KB |
Output is correct |
| 26 |
Correct |
358 ms |
188332 KB |
Output is correct |
| 27 |
Correct |
488 ms |
194424 KB |
Output is correct |
| 28 |
Correct |
214 ms |
171044 KB |
Output is correct |
| 29 |
Correct |
467 ms |
191224 KB |
Output is correct |
| 30 |
Correct |
470 ms |
189476 KB |
Output is correct |
| 31 |
Correct |
254 ms |
172088 KB |
Output is correct |
| 32 |
Correct |
315 ms |
175908 KB |
Output is correct |
| 33 |
Correct |
161 ms |
161348 KB |
Output is correct |
| 34 |
Correct |
390 ms |
185304 KB |
Output is correct |
| 35 |
Correct |
222 ms |
171812 KB |
Output is correct |
| 36 |
Correct |
480 ms |
194208 KB |
Output is correct |
| 37 |
Correct |
225 ms |
166940 KB |
Output is correct |
| 38 |
Correct |
451 ms |
191744 KB |
Output is correct |
| 39 |
Correct |
230 ms |
166364 KB |
Output is correct |
| 40 |
Correct |
424 ms |
190072 KB |
Output is correct |
| 41 |
Correct |
340 ms |
188408 KB |
Output is correct |
| 42 |
Correct |
485 ms |
193896 KB |
Output is correct |
