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Submission #1015963

# Submission time Handle Problem Language Result Execution time Memory
1015963 2024-07-07T06:56:05 Z caterpillow Brunhilda’s Birthday (BOI13_brunhilda) C++17
100 / 100
 171 ms 155476 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
 
using ll = long long;
using pl = pair<ll, ll>;
using pi = pair<int, int>;
#define vt vector
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(), x.end() 
#define size(x) ((int) (x).size())
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define ROF(i, a, b) for (int i = (b) - 1; i >= (a); i--)
#define F0R(i, b) FOR (i, 0, b)
#define endl '\n'
const ll INF = 1e18;
const int inf = 1e9;
 
const int maxn = 1e7 + 1;
 
int m, qs; 
int dp[maxn];
vt<int> primes, ans;
vt<pi> queries;
int evs[maxn];
vt<pi> q;
 
main() {
    cin.tie(0)->sync_with_stdio(0);
    
    cin >> m >> qs;
    primes.resize(m);
    F0R (i, m) cin >> primes[i]; 
    sort(all(primes));
    memset(evs, -1, sizeof(evs));
    for (int p : primes) {
        int x = p;
        while (x < maxn) {
            evs[x] = p;
            x += p;;
        }
    }

 
    queries.resize(qs);
    F0R (i, qs) cin >> queries[i].f, queries[i].s = i;
    sort(all(queries));
    reverse(all(queries));
    ans.resize(qs, -1);
 
    q.reserve(maxn);
    int front = 0;
    q.pb({0, primes.back()});

    FOR (i, 1, maxn) {
        if (evs[i] != -1) q.pb({i, evs[i]});
        while (q[front].f + q[front].s <= i) front++;

        if (q[front].f == i) break;
        dp[i] = dp[q[front].f] + 1;
        while (size(queries) && queries.back().f == i) {
            ans[queries.back().s] = dp[i];
            queries.pop_back();
        }
        if (!size(queries)) break;
    }
    F0R (i, qs) {
        if (ans[i] == -1) cout << "oo\n"; 
        else cout << ans[i] << endl;
    }
}

Compilation message

brunhilda.cpp:33:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   33 | main() {
      | ^~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 39516 KB Output is correct
2 Correct 23 ms 39516 KB Output is correct
3 Correct 22 ms 39516 KB Output is correct
4 Correct 17 ms 39768 KB Output is correct
5 Correct 22 ms 39620 KB Output is correct
6 Correct 19 ms 39516 KB Output is correct
7 Correct 22 ms 39512 KB Output is correct
8 Correct 24 ms 39516 KB Output is correct
9 Correct 29 ms 39860 KB Output is correct
10 Correct 33 ms 39532 KB Output is correct
11 Correct 33 ms 39564 KB Output is correct
12 Correct 22 ms 39512 KB Output is correct
13 Correct 54 ms 39516 KB Output is correct
14 Correct 69 ms 40004 KB Output is correct
15 Correct 26 ms 39512 KB Output is correct
16 Correct 23 ms 39516 KB Output is correct
17 Correct 24 ms 39760 KB Output is correct
18 Correct 16 ms 39604 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 91476 KB Output is correct
2 Correct 81 ms 91476 KB Output is correct
3 Correct 105 ms 93520 KB Output is correct
4 Correct 90 ms 103760 KB Output is correct
5 Correct 65 ms 66820 KB Output is correct
6 Correct 45 ms 69324 KB Output is correct
7 Correct 72 ms 91476 KB Output is correct
8 Correct 56 ms 64848 KB Output is correct
9 Correct 73 ms 68564 KB Output is correct
10 Correct 98 ms 93376 KB Output is correct
11 Correct 140 ms 152148 KB Output is correct
12 Correct 107 ms 123988 KB Output is correct
13 Correct 70 ms 97272 KB Output is correct
14 Correct 95 ms 103504 KB Output is correct
15 Correct 78 ms 75384 KB Output is correct
16 Correct 81 ms 91656 KB Output is correct
17 Correct 128 ms 149192 KB Output is correct
18 Correct 128 ms 147764 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 152144 KB Output is correct
2 Correct 156 ms 153092 KB Output is correct
3 Correct 123 ms 120688 KB Output is correct
4 Correct 129 ms 142660 KB Output is correct
5 Correct 105 ms 100432 KB Output is correct
6 Correct 134 ms 149844 KB Output is correct
7 Correct 112 ms 108884 KB Output is correct
8 Correct 137 ms 152152 KB Output is correct
9 Correct 142 ms 152408 KB Output is correct
10 Correct 135 ms 133200 KB Output is correct
11 Correct 123 ms 125484 KB Output is correct
12 Correct 148 ms 148052 KB Output is correct
13 Correct 118 ms 98388 KB Output is correct
14 Correct 105 ms 106956 KB Output is correct
15 Correct 133 ms 151364 KB Output is correct
16 Correct 134 ms 151892 KB Output is correct
17 Correct 124 ms 143440 KB Output is correct
18 Correct 144 ms 153088 KB Output is correct
19 Correct 79 ms 111956 KB Output is correct
20 Correct 124 ms 120656 KB Output is correct
21 Correct 139 ms 151496 KB Output is correct
22 Correct 163 ms 155476 KB Output is correct
23 Correct 115 ms 102736 KB Output is correct
24 Correct 107 ms 95312 KB Output is correct
25 Correct 134 ms 140312 KB Output is correct
26 Correct 134 ms 142676 KB Output is correct
27 Correct 171 ms 121500 KB Output is correct
28 Correct 101 ms 108492 KB Output is correct
29 Correct 149 ms 149076 KB Output is correct
30 Correct 136 ms 145744 KB Output is correct
31 Correct 125 ms 110328 KB Output is correct
32 Correct 127 ms 117928 KB Output is correct
33 Correct 72 ms 88832 KB Output is correct
34 Correct 108 ms 108880 KB Output is correct
35 Correct 97 ms 109780 KB Output is correct
36 Correct 169 ms 155220 KB Output is correct
37 Correct 107 ms 100428 KB Output is correct
38 Correct 139 ms 149844 KB Output is correct
39 Correct 110 ms 99152 KB Output is correct
40 Correct 138 ms 146676 KB Output is correct
41 Correct 93 ms 113352 KB Output is correct
42 Correct 127 ms 153936 KB Output is correct