oj.uz

Submission #491819

# Submission time Handle Problem Language Result Execution time Memory
491819 2021-12-04T15:47:18 Z Victor Brunhilda’s Birthday (BOI13_brunhilda) C++17
100 / 100
 411 ms 40036 KB 
// #pragma GCC target ("avx,avx2,fma")
// #pragma GCC optimize ("Ofast,inline") // O1 - O2 - O3 - Os - Ofast
// #pragma GCC optimize ("unroll-loops")
#include <bits/stdc++.h>

using namespace std;

#define rep(i, a, b) for (int i = (a); i < (b); ++i)
#define per(i, a, b) for (int i = (b - 1); i >= (a); --i)
#define trav(a, x) for (auto &a : x)

#define all(x) x.begin(), x.end()
#define sz(x) x.size()
#define pb push_back
#define debug(x) cout << #x << " = " << x << endl

#define umap unordered_map
#define uset unordered_set

typedef pair<int, int> ii;
typedef pair<int, ii> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef vector<ll> vll;
typedef vector<pll> vpll;

const int INF = 1'000'000'007;

int n, q, ans[10'000'001], rem;
priority_queue<ii> pq;

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin.exceptions(cin.failbit);

    int p, mx;
    ans[0] = 0;

    cin >> n >> q;
    rep(i, 0, n) {
        cin >> p;
        pq.emplace(0, p);
        mx = p;
    }

    int val, prime, stop = INF;
    rep(i, mx, 10'000'001) {
        while (1) {
            tie(val, prime) = pq.top();
            val = -val;

            if (i / prime == val / prime) {
                rem = i - val;
                if (!rem) {
                    ans[i] = INF;
                    stop = i;
                } else if (i - rem < mx)
                    ans[i] = 2;
                else 
                    ans[i] = ans[i - rem] + 1;
                break;

            } else {
                pq.pop();
                pq.emplace(-(i - i % prime), prime);
            }
        }
        if (stop != INF) break;
    }

    while (q--) {
        cin >> val;

        if (val<mx)
            cout<<1<<endl;
        else if (val>=stop)
            cout << "oo" << endl;
        else
            cout << ans[val] << endl;
    }
    return 0;
}

Compilation message

brunhilda.cpp: In function 'int main()':
brunhilda.cpp:61:24: warning: 'mx' may be used uninitialized in this function [-Wmaybe-uninitialized]
   61 |                 } else if (i - rem < mx)
      |                        ^~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 332 KB Output is correct
2 Correct 220 ms 39424 KB Output is correct
3 Correct 6 ms 1228 KB Output is correct
4 Correct 176 ms 39388 KB Output is correct
5 Correct 230 ms 39332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 6 ms 1228 KB Output is correct
8 Correct 19 ms 3840 KB Output is correct
9 Correct 265 ms 39332 KB Output is correct
10 Correct 250 ms 39432 KB Output is correct
11 Correct 250 ms 39528 KB Output is correct
12 Correct 163 ms 39500 KB Output is correct
13 Correct 239 ms 39320 KB Output is correct
14 Correct 263 ms 39364 KB Output is correct
15 Correct 191 ms 39428 KB Output is correct
16 Correct 210 ms 39496 KB Output is correct
17 Correct 218 ms 39440 KB Output is correct
18 Correct 168 ms 39428 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 136 ms 36044 KB Output is correct
2 Correct 36 ms 4968 KB Output is correct
3 Correct 155 ms 30292 KB Output is correct
4 Correct 156 ms 39060 KB Output is correct
5 Correct 179 ms 34880 KB Output is correct
6 Correct 141 ms 39136 KB Output is correct
7 Correct 129 ms 36036 KB Output is correct
8 Correct 165 ms 39216 KB Output is correct
9 Correct 207 ms 34992 KB Output is correct
10 Correct 150 ms 30440 KB Output is correct
11 Correct 221 ms 36348 KB Output is correct
12 Correct 172 ms 39208 KB Output is correct
13 Correct 126 ms 37468 KB Output is correct
14 Correct 173 ms 39084 KB Output is correct
15 Correct 192 ms 36696 KB Output is correct
16 Correct 29 ms 5052 KB Output is correct
17 Correct 202 ms 39148 KB Output is correct
18 Correct 106 ms 20944 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 237 ms 36136 KB Output is correct
2 Correct 284 ms 37300 KB Output is correct
3 Correct 281 ms 36376 KB Output is correct
4 Correct 292 ms 39324 KB Output is correct
5 Correct 222 ms 23204 KB Output is correct
6 Correct 326 ms 39316 KB Output is correct
7 Correct 231 ms 29336 KB Output is correct
8 Correct 239 ms 36244 KB Output is correct
9 Correct 242 ms 36088 KB Output is correct
10 Correct 208 ms 39236 KB Output is correct
11 Correct 204 ms 39244 KB Output is correct
12 Correct 232 ms 39116 KB Output is correct
13 Correct 301 ms 36916 KB Output is correct
14 Correct 411 ms 40036 KB Output is correct
15 Correct 243 ms 39236 KB Output is correct
16 Correct 267 ms 39392 KB Output is correct
17 Correct 208 ms 36744 KB Output is correct
18 Correct 255 ms 37224 KB Output is correct
19 Correct 150 ms 36784 KB Output is correct
20 Correct 302 ms 36280 KB Output is correct
21 Correct 344 ms 40004 KB Output is correct
22 Correct 352 ms 34604 KB Output is correct
23 Correct 289 ms 36128 KB Output is correct
24 Correct 266 ms 39428 KB Output is correct
25 Correct 317 ms 39584 KB Output is correct
26 Correct 294 ms 39244 KB Output is correct
27 Correct 308 ms 33984 KB Output is correct
28 Correct 253 ms 38936 KB Output is correct
29 Correct 337 ms 34616 KB Output is correct
30 Correct 346 ms 36384 KB Output is correct
31 Correct 248 ms 38580 KB Output is correct
32 Correct 285 ms 39348 KB Output is correct
33 Correct 243 ms 38940 KB Output is correct
34 Correct 212 ms 29228 KB Output is correct
35 Correct 266 ms 38968 KB Output is correct
36 Correct 335 ms 34500 KB Output is correct
37 Correct 217 ms 23100 KB Output is correct
38 Correct 344 ms 39316 KB Output is correct
39 Correct 281 ms 39184 KB Output is correct
40 Correct 308 ms 39052 KB Output is correct
41 Correct 149 ms 11652 KB Output is correct
42 Correct 342 ms 39680 KB Output is correct