#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(dp[x] == -1) cout << "oo\n";
else cout << dp[x] << "\n";
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
144 ms |
163608 KB |
Output isn't correct |
| 2 |
Correct |
221 ms |
185376 KB |
Output is correct |
| 3 |
Correct |
194 ms |
181400 KB |
Output is correct |
| 4 |
Correct |
118 ms |
159876 KB |
Output is correct |
| 5 |
Correct |
188 ms |
167236 KB |
Output is correct |
| 6 |
Incorrect |
161 ms |
163520 KB |
Output isn't correct |
| 7 |
Correct |
201 ms |
181460 KB |
Output is correct |
| 8 |
Correct |
223 ms |
186416 KB |
Output is correct |
| 9 |
Correct |
277 ms |
189084 KB |
Output is correct |
| 10 |
Correct |
309 ms |
189996 KB |
Output is correct |
| 11 |
Correct |
286 ms |
184452 KB |
Output is correct |
| 12 |
Correct |
118 ms |
159040 KB |
Output is correct |
| 13 |
Correct |
397 ms |
193376 KB |
Output is correct |
| 14 |
Correct |
393 ms |
193328 KB |
Output is correct |
| 15 |
Correct |
241 ms |
184472 KB |
Output is correct |
| 16 |
Correct |
228 ms |
185412 KB |
Output is correct |
| 17 |
Correct |
196 ms |
167136 KB |
Output is correct |
| 18 |
Correct |
119 ms |
159824 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
181 ms |
163572 KB |
Output is correct |
| 2 |
Correct |
201 ms |
166096 KB |
Output is correct |
| 3 |
Correct |
441 ms |
194056 KB |
Output is correct |
| 4 |
Correct |
242 ms |
172820 KB |
Output is correct |
| 5 |
Correct |
393 ms |
188584 KB |
Output is correct |
| 6 |
Correct |
205 ms |
180460 KB |
Output is correct |
| 7 |
Correct |
160 ms |
163576 KB |
Output is correct |
| 8 |
Correct |
265 ms |
171196 KB |
Output is correct |
| 9 |
Correct |
410 ms |
190784 KB |
Output is correct |
| 10 |
Correct |
448 ms |
194032 KB |
Output is correct |
| 11 |
Correct |
493 ms |
193616 KB |
Output is correct |
| 12 |
Correct |
340 ms |
186724 KB |
Output is correct |
| 13 |
Correct |
170 ms |
166596 KB |
Output is correct |
| 14 |
Correct |
253 ms |
172852 KB |
Output is correct |
| 15 |
Correct |
415 ms |
192664 KB |
Output is correct |
| 16 |
Correct |
186 ms |
166048 KB |
Output is correct |
| 17 |
Correct |
405 ms |
192932 KB |
Output is correct |
| 18 |
Correct |
391 ms |
191464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
404 ms |
193488 KB |
Output is correct |
| 2 |
Correct |
460 ms |
193960 KB |
Output is correct |
| 3 |
Correct |
488 ms |
194304 KB |
Output is correct |
| 4 |
Correct |
333 ms |
188884 KB |
Output is correct |
| 5 |
Correct |
237 ms |
166784 KB |
Output is correct |
| 6 |
Correct |
434 ms |
192276 KB |
Output is correct |
| 7 |
Correct |
387 ms |
185280 KB |
Output is correct |
| 8 |
Correct |
449 ms |
193520 KB |
Output is correct |
| 9 |
Correct |
424 ms |
193540 KB |
Output is correct |
| 10 |
Correct |
394 ms |
184268 KB |
Output is correct |
| 11 |
Correct |
325 ms |
180136 KB |
Output is correct |
| 12 |
Correct |
398 ms |
191620 KB |
Output is correct |
| 13 |
Correct |
435 ms |
193368 KB |
Output is correct |
| 14 |
Correct |
349 ms |
191996 KB |
Output is correct |
| 15 |
Correct |
431 ms |
193152 KB |
Output is correct |
| 16 |
Correct |
421 ms |
193460 KB |
Output is correct |
| 17 |
Correct |
367 ms |
189220 KB |
Output is correct |
| 18 |
Correct |
454 ms |
193936 KB |
Output is correct |
| 19 |
Correct |
180 ms |
173552 KB |
Output is correct |
| 20 |
Correct |
466 ms |
194392 KB |
Output is correct |
| 21 |
Correct |
371 ms |
193516 KB |
Output is correct |
| 22 |
Correct |
507 ms |
195040 KB |
Output is correct |
| 23 |
Correct |
227 ms |
168072 KB |
Output is correct |
| 24 |
Correct |
202 ms |
164484 KB |
Output is correct |
| 25 |
Correct |
362 ms |
187680 KB |
Output is correct |
| 26 |
Correct |
331 ms |
188884 KB |
Output is correct |
| 27 |
Correct |
480 ms |
194664 KB |
Output is correct |
| 28 |
Correct |
195 ms |
171084 KB |
Output is correct |
| 29 |
Correct |
431 ms |
191768 KB |
Output is correct |
| 30 |
Correct |
403 ms |
190072 KB |
Output is correct |
| 31 |
Correct |
238 ms |
172108 KB |
Output is correct |
| 32 |
Correct |
286 ms |
175932 KB |
Output is correct |
| 33 |
Correct |
148 ms |
161400 KB |
Output is correct |
| 34 |
Correct |
364 ms |
185196 KB |
Output is correct |
| 35 |
Correct |
204 ms |
171928 KB |
Output is correct |
| 36 |
Correct |
453 ms |
194776 KB |
Output is correct |
| 37 |
Correct |
199 ms |
166924 KB |
Output is correct |
| 38 |
Correct |
401 ms |
192252 KB |
Output is correct |
| 39 |
Correct |
202 ms |
166456 KB |
Output is correct |
| 40 |
Correct |
403 ms |
190668 KB |
Output is correct |
| 41 |
Correct |
327 ms |
188592 KB |
Output is correct |
| 42 |
Correct |
435 ms |
194508 KB |
Output is correct |
