oj.uz

Submission #155736

# Submission time Handle Problem Language Result Execution time Memory
155736 2019-09-30T07:26:29 Z IOrtroiii Brunhilda’s Birthday (BOI13_brunhilda) C++14
100 / 100
 426 ms 87416 KB 
#include <bits/stdc++.h>

using namespace std;

const int MX = 10 * 1000 * 1000 + 7;

bool has[MX];
int nxt[MX];
int ans[MX];

int main() {
   int n, q;
   scanf("%d %d", &n, &q);
   for (; n > 0; n--) {
      int x;
      scanf("%d", &x);
      has[x] = true;
   }
   for (int i = 2; i < MX; ++i) {
      if (!has[i]) continue;
      for (int j = 0; j < MX; j += i) {
         nxt[j] = max(nxt[j], j + i - 1);
      }
   }
   int ptr = 0;
   for (int i = 1; i < MX; ++i) {
      while (ptr < i && nxt[ptr] < i) {
         ++ptr;
      }
      if (ptr == i) {
         break;
      } else ans[i] = ans[ptr] + 1;
   }
   for (; q > 0; q--) {
      int x;
      scanf("%d", &x);
      if (!ans[x]) {
         puts("oo");
      } else {
         printf("%d\n", ans[x]);
      }
   }
}

Compilation message

brunhilda.cpp: In function 'int main()':
brunhilda.cpp:13:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d %d", &n, &q);
    ~~~~~^~~~~~~~~~~~~~~~~
brunhilda.cpp:16:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d", &x);
       ~~~~~^~~~~~~~~~
brunhilda.cpp:36:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d", &x);
       ~~~~~^~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 39544 KB Output is correct
2 Correct 154 ms 78712 KB Output is correct
3 Correct 96 ms 40440 KB Output is correct
4 Correct 123 ms 78684 KB Output is correct
5 Correct 149 ms 78568 KB Output is correct
6 Correct 71 ms 39544 KB Output is correct
7 Correct 95 ms 40440 KB Output is correct
8 Correct 92 ms 43000 KB Output is correct
9 Correct 171 ms 78684 KB Output is correct
10 Correct 176 ms 78812 KB Output is correct
11 Correct 184 ms 78716 KB Output is correct
12 Correct 123 ms 78584 KB Output is correct
13 Correct 289 ms 78560 KB Output is correct
14 Correct 266 ms 78712 KB Output is correct
15 Correct 162 ms 78684 KB Output is correct
16 Correct 165 ms 78708 KB Output is correct
17 Correct 180 ms 78816 KB Output is correct
18 Correct 140 ms 78712 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 164 ms 79480 KB Output is correct
2 Correct 158 ms 87416 KB Output is correct
3 Correct 386 ms 79608 KB Output is correct
4 Correct 160 ms 78712 KB Output is correct
5 Correct 265 ms 79824 KB Output is correct
6 Correct 145 ms 78668 KB Output is correct
7 Correct 147 ms 79576 KB Output is correct
8 Correct 162 ms 78584 KB Output is correct
9 Correct 277 ms 79868 KB Output is correct
10 Correct 337 ms 79608 KB Output is correct
11 Correct 330 ms 79068 KB Output is correct
12 Correct 201 ms 78712 KB Output is correct
13 Correct 127 ms 79096 KB Output is correct
14 Correct 169 ms 78692 KB Output is correct
15 Correct 317 ms 79384 KB Output is correct
16 Correct 158 ms 87416 KB Output is correct
17 Correct 345 ms 78840 KB Output is correct
18 Correct 310 ms 80548 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 293 ms 79692 KB Output is correct
2 Correct 337 ms 79480 KB Output is correct
3 Correct 387 ms 79352 KB Output is correct
4 Correct 233 ms 78980 KB Output is correct
5 Correct 224 ms 83280 KB Output is correct
6 Correct 317 ms 78968 KB Output is correct
7 Correct 255 ms 81012 KB Output is correct
8 Correct 327 ms 79656 KB Output is correct
9 Correct 305 ms 79692 KB Output is correct
10 Correct 231 ms 78712 KB Output is correct
11 Correct 210 ms 78784 KB Output is correct
12 Correct 267 ms 78712 KB Output is correct
13 Correct 326 ms 79352 KB Output is correct
14 Correct 222 ms 79164 KB Output is correct
15 Correct 271 ms 78756 KB Output is correct
16 Correct 310 ms 78752 KB Output is correct
17 Correct 276 ms 79480 KB Output is correct
18 Correct 334 ms 79324 KB Output is correct
19 Correct 140 ms 79352 KB Output is correct
20 Correct 341 ms 79412 KB Output is correct
21 Correct 231 ms 79352 KB Output is correct
22 Correct 394 ms 80296 KB Output is correct
23 Correct 221 ms 79864 KB Output is correct
24 Correct 167 ms 79040 KB Output is correct
25 Correct 256 ms 79052 KB Output is correct
26 Correct 241 ms 78988 KB Output is correct
27 Correct 379 ms 79992 KB Output is correct
28 Correct 163 ms 78996 KB Output is correct
29 Correct 354 ms 80324 KB Output is correct
30 Correct 356 ms 79864 KB Output is correct
31 Correct 188 ms 79196 KB Output is correct
32 Correct 200 ms 79028 KB Output is correct
33 Correct 156 ms 79096 KB Output is correct
34 Correct 289 ms 80928 KB Output is correct
35 Correct 191 ms 79032 KB Output is correct
36 Correct 426 ms 80432 KB Output is correct
37 Correct 206 ms 83332 KB Output is correct
38 Correct 302 ms 78968 KB Output is correct
39 Correct 177 ms 78968 KB Output is correct
40 Correct 271 ms 79124 KB Output is correct
41 Correct 235 ms 81912 KB Output is correct
42 Correct 332 ms 79024 KB Output is correct