#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;
assert(x != 0);
if(dp[x] == -1) cout << "oo\n";
else cout << dp[x] << "\n";
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
156 ms |
163508 KB |
Output isn't correct |
| 2 |
Correct |
217 ms |
185392 KB |
Output is correct |
| 3 |
Correct |
196 ms |
181592 KB |
Output is correct |
| 4 |
Correct |
122 ms |
159844 KB |
Output is correct |
| 5 |
Correct |
193 ms |
167240 KB |
Output is correct |
| 6 |
Incorrect |
144 ms |
163604 KB |
Output isn't correct |
| 7 |
Correct |
204 ms |
181380 KB |
Output is correct |
| 8 |
Correct |
213 ms |
186400 KB |
Output is correct |
| 9 |
Correct |
258 ms |
189056 KB |
Output is correct |
| 10 |
Correct |
305 ms |
190096 KB |
Output is correct |
| 11 |
Correct |
260 ms |
184392 KB |
Output is correct |
| 12 |
Correct |
113 ms |
159068 KB |
Output is correct |
| 13 |
Correct |
381 ms |
193396 KB |
Output is correct |
| 14 |
Correct |
405 ms |
193344 KB |
Output is correct |
| 15 |
Correct |
236 ms |
184560 KB |
Output is correct |
| 16 |
Correct |
213 ms |
185384 KB |
Output is correct |
| 17 |
Correct |
195 ms |
167180 KB |
Output is correct |
| 18 |
Correct |
116 ms |
159844 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
168 ms |
163584 KB |
Output is correct |
| 2 |
Correct |
201 ms |
166136 KB |
Output is correct |
| 3 |
Correct |
463 ms |
194000 KB |
Output is correct |
| 4 |
Correct |
232 ms |
172860 KB |
Output is correct |
| 5 |
Correct |
342 ms |
188596 KB |
Output is correct |
| 6 |
Correct |
235 ms |
180372 KB |
Output is correct |
| 7 |
Correct |
151 ms |
163656 KB |
Output is correct |
| 8 |
Correct |
220 ms |
171072 KB |
Output is correct |
| 9 |
Correct |
382 ms |
190572 KB |
Output is correct |
| 10 |
Correct |
538 ms |
194024 KB |
Output is correct |
| 11 |
Correct |
413 ms |
193668 KB |
Output is correct |
| 12 |
Correct |
335 ms |
186744 KB |
Output is correct |
| 13 |
Correct |
194 ms |
166548 KB |
Output is correct |
| 14 |
Correct |
238 ms |
172800 KB |
Output is correct |
| 15 |
Correct |
456 ms |
192676 KB |
Output is correct |
| 16 |
Correct |
206 ms |
166076 KB |
Output is correct |
| 17 |
Correct |
474 ms |
192876 KB |
Output is correct |
| 18 |
Correct |
427 ms |
191344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
437 ms |
193360 KB |
Output is correct |
| 2 |
Correct |
486 ms |
193856 KB |
Output is correct |
| 3 |
Correct |
453 ms |
194004 KB |
Output is correct |
| 4 |
Correct |
360 ms |
188404 KB |
Output is correct |
| 5 |
Correct |
216 ms |
166892 KB |
Output is correct |
| 6 |
Correct |
446 ms |
191728 KB |
Output is correct |
| 7 |
Correct |
386 ms |
185244 KB |
Output is correct |
| 8 |
Correct |
421 ms |
193336 KB |
Output is correct |
| 9 |
Correct |
473 ms |
193320 KB |
Output is correct |
| 10 |
Correct |
377 ms |
184252 KB |
Output is correct |
| 11 |
Correct |
358 ms |
180184 KB |
Output is correct |
| 12 |
Correct |
500 ms |
191480 KB |
Output is correct |
| 13 |
Correct |
629 ms |
192840 KB |
Output is correct |
| 14 |
Correct |
412 ms |
191260 KB |
Output is correct |
| 15 |
Correct |
463 ms |
193092 KB |
Output is correct |
| 16 |
Correct |
425 ms |
193392 KB |
Output is correct |
| 17 |
Correct |
390 ms |
189268 KB |
Output is correct |
| 18 |
Correct |
467 ms |
193848 KB |
Output is correct |
| 19 |
Correct |
195 ms |
173380 KB |
Output is correct |
| 20 |
Correct |
476 ms |
193968 KB |
Output is correct |
| 21 |
Correct |
378 ms |
192792 KB |
Output is correct |
| 22 |
Correct |
577 ms |
194376 KB |
Output is correct |
| 23 |
Correct |
255 ms |
168096 KB |
Output is correct |
| 24 |
Correct |
210 ms |
164316 KB |
Output is correct |
| 25 |
Correct |
398 ms |
187000 KB |
Output is correct |
| 26 |
Correct |
366 ms |
188348 KB |
Output is correct |
| 27 |
Correct |
508 ms |
194360 KB |
Output is correct |
| 28 |
Correct |
214 ms |
171032 KB |
Output is correct |
| 29 |
Correct |
488 ms |
191220 KB |
Output is correct |
| 30 |
Correct |
457 ms |
189448 KB |
Output is correct |
| 31 |
Correct |
267 ms |
172100 KB |
Output is correct |
| 32 |
Correct |
305 ms |
175856 KB |
Output is correct |
| 33 |
Correct |
162 ms |
161396 KB |
Output is correct |
| 34 |
Correct |
375 ms |
185256 KB |
Output is correct |
| 35 |
Correct |
231 ms |
171692 KB |
Output is correct |
| 36 |
Correct |
522 ms |
194208 KB |
Output is correct |
| 37 |
Correct |
229 ms |
166760 KB |
Output is correct |
| 38 |
Correct |
468 ms |
191736 KB |
Output is correct |
| 39 |
Correct |
211 ms |
166436 KB |
Output is correct |
| 40 |
Correct |
428 ms |
190100 KB |
Output is correct |
| 41 |
Correct |
348 ms |
188440 KB |
Output is correct |
| 42 |
Correct |
450 ms |
193820 KB |
Output is correct |
