#include <bits/stdc++.h>
using namespace std;
const int N = 11000000 + 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 |
169 ms |
179904 KB |
Output isn't correct |
| 2 |
Correct |
291 ms |
203900 KB |
Output is correct |
| 3 |
Correct |
243 ms |
199496 KB |
Output is correct |
| 4 |
Correct |
173 ms |
175836 KB |
Output is correct |
| 5 |
Correct |
214 ms |
183928 KB |
Output is correct |
| 6 |
Incorrect |
172 ms |
179936 KB |
Output isn't correct |
| 7 |
Correct |
236 ms |
199504 KB |
Output is correct |
| 8 |
Correct |
246 ms |
205128 KB |
Output is correct |
| 9 |
Correct |
320 ms |
207884 KB |
Output is correct |
| 10 |
Correct |
348 ms |
209104 KB |
Output is correct |
| 11 |
Correct |
316 ms |
202892 KB |
Output is correct |
| 12 |
Correct |
169 ms |
174952 KB |
Output is correct |
| 13 |
Correct |
463 ms |
212596 KB |
Output is correct |
| 14 |
Correct |
444 ms |
212616 KB |
Output is correct |
| 15 |
Correct |
286 ms |
202936 KB |
Output is correct |
| 16 |
Correct |
257 ms |
203900 KB |
Output is correct |
| 17 |
Correct |
225 ms |
183876 KB |
Output is correct |
| 18 |
Correct |
138 ms |
175784 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
188 ms |
179996 KB |
Output is correct |
| 2 |
Correct |
206 ms |
182656 KB |
Output is correct |
| 3 |
Correct |
530 ms |
213276 KB |
Output is correct |
| 4 |
Correct |
294 ms |
190012 KB |
Output is correct |
| 5 |
Correct |
427 ms |
207312 KB |
Output is correct |
| 6 |
Correct |
223 ms |
198392 KB |
Output is correct |
| 7 |
Correct |
168 ms |
179928 KB |
Output is correct |
| 8 |
Correct |
274 ms |
188180 KB |
Output is correct |
| 9 |
Correct |
434 ms |
209572 KB |
Output is correct |
| 10 |
Correct |
521 ms |
213332 KB |
Output is correct |
| 11 |
Correct |
499 ms |
212988 KB |
Output is correct |
| 12 |
Correct |
366 ms |
205428 KB |
Output is correct |
| 13 |
Correct |
177 ms |
183172 KB |
Output is correct |
| 14 |
Correct |
269 ms |
190088 KB |
Output is correct |
| 15 |
Correct |
453 ms |
211876 KB |
Output is correct |
| 16 |
Correct |
341 ms |
182552 KB |
Output is correct |
| 17 |
Correct |
463 ms |
212172 KB |
Output is correct |
| 18 |
Correct |
456 ms |
210392 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
454 ms |
212612 KB |
Output is correct |
| 2 |
Correct |
581 ms |
213148 KB |
Output is correct |
| 3 |
Correct |
616 ms |
213312 KB |
Output is correct |
| 4 |
Correct |
413 ms |
207196 KB |
Output is correct |
| 5 |
Correct |
243 ms |
183440 KB |
Output is correct |
| 6 |
Correct |
481 ms |
210912 KB |
Output is correct |
| 7 |
Correct |
445 ms |
203632 KB |
Output is correct |
| 8 |
Correct |
545 ms |
212580 KB |
Output is correct |
| 9 |
Correct |
451 ms |
212644 KB |
Output is correct |
| 10 |
Correct |
408 ms |
202544 KB |
Output is correct |
| 11 |
Correct |
350 ms |
198132 KB |
Output is correct |
| 12 |
Correct |
433 ms |
210560 KB |
Output is correct |
| 13 |
Correct |
496 ms |
212192 KB |
Output is correct |
| 14 |
Correct |
356 ms |
210348 KB |
Output is correct |
| 15 |
Correct |
419 ms |
212436 KB |
Output is correct |
| 16 |
Correct |
441 ms |
212776 KB |
Output is correct |
| 17 |
Correct |
411 ms |
207984 KB |
Output is correct |
| 18 |
Correct |
458 ms |
213232 KB |
Output is correct |
| 19 |
Correct |
187 ms |
190652 KB |
Output is correct |
| 20 |
Correct |
468 ms |
213440 KB |
Output is correct |
| 21 |
Correct |
363 ms |
211884 KB |
Output is correct |
| 22 |
Correct |
463 ms |
213784 KB |
Output is correct |
| 23 |
Correct |
229 ms |
184800 KB |
Output is correct |
| 24 |
Correct |
185 ms |
180720 KB |
Output is correct |
| 25 |
Correct |
360 ms |
205552 KB |
Output is correct |
| 26 |
Correct |
360 ms |
207108 KB |
Output is correct |
| 27 |
Correct |
494 ms |
213768 KB |
Output is correct |
| 28 |
Correct |
215 ms |
188056 KB |
Output is correct |
| 29 |
Correct |
451 ms |
210028 KB |
Output is correct |
| 30 |
Correct |
434 ms |
208196 KB |
Output is correct |
| 31 |
Correct |
253 ms |
189164 KB |
Output is correct |
| 32 |
Correct |
297 ms |
193328 KB |
Output is correct |
| 33 |
Correct |
160 ms |
177488 KB |
Output is correct |
| 34 |
Correct |
368 ms |
203604 KB |
Output is correct |
| 35 |
Correct |
226 ms |
188868 KB |
Output is correct |
| 36 |
Correct |
468 ms |
213560 KB |
Output is correct |
| 37 |
Correct |
223 ms |
183420 KB |
Output is correct |
| 38 |
Correct |
451 ms |
210956 KB |
Output is correct |
| 39 |
Correct |
211 ms |
182964 KB |
Output is correct |
| 40 |
Correct |
394 ms |
209176 KB |
Output is correct |
| 41 |
Correct |
371 ms |
207232 KB |
Output is correct |
| 42 |
Correct |
442 ms |
213204 KB |
Output is correct |
