oj.uz

Submission #71433

# Submission time Handle Problem Language Result Execution time Memory
71433 2018-08-24T14:05:15 Z someone_aa Brunhilda’s Birthday (BOI13_brunhilda) C++17
0 / 100
 1000 ms 263168 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
using namespace std;
const int maxu = 10000100;
const int maxn = 100100;
bool prime[maxu], exist[maxu];
int primes[maxn], qi[maxn], dp[maxu], n, m, q;
int ind[maxn], tree[4*maxn], maxq, inf;
vector<int>p[maxu];

void sieve() {
    memset(prime,true,sizeof(prime));
    prime[0] = prime[1] = false;
    for(int i=2;i<maxu;i++) {
        if(prime[i]) {
            for(int j=i;j<maxu;j+=i) {
                if(exist[i])
                    p[j].pb(ind[i]);
                if(j > i) prime[j] = false;
            }
        }
    }
}

void update(int x, int val, int li=0, int ri=n-1, int index=1) {
    if(li==ri) tree[index] = val;
    else {
        int mid = (li+ri)/2;
        if(x <= mid) update(x,val,li,mid,2*index);
        else if(x>mid) update(x,val,mid+1,ri,2*index+1);
        tree[index] = min(tree[2*index], tree[2*index+1]);
    }
}

void solve() {
    inf = 1000000000;
    for(int i=1;i<=maxq;i++) {
        for(int j:p[i]) {
            update(j, inf);
        }
        dp[i] = tree[1] + 1;
        for(int j:p[i]) {
            update(j, dp[i]);
        }
    }
}


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin>>n>>q;
    for(int i=0;i<n;i++) {
        cin>>primes[i];
        exist[primes[i]] = true;
        ind[primes[i]] = i;
    }

    sieve();
    for(int i=0;i<q;i++) {
        cin>>qi[i];
        maxq = max(maxq, qi[i]);
    }
    solve();
    for(int i=0;i<q;i++) {
        if(dp[qi[i]] >= inf) cout<<"oo\n";
        else cout<<dp[qi[i]]<<"\n";
    }
    return 0;
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1037 ms 263168 KB Time limit exceeded
2 Execution timed out 1039 ms 263168 KB Time limit exceeded
3 Execution timed out 1043 ms 263168 KB Time limit exceeded
4 Runtime error 979 ms 263168 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
5 Execution timed out 1048 ms 263168 KB Time limit exceeded
6 Execution timed out 1018 ms 263168 KB Time limit exceeded
7 Execution timed out 1051 ms 263168 KB Time limit exceeded
8 Execution timed out 1046 ms 263168 KB Time limit exceeded
9 Execution timed out 1049 ms 263168 KB Time limit exceeded
10 Execution timed out 1040 ms 263168 KB Time limit exceeded
11 Execution timed out 1026 ms 263168 KB Time limit exceeded
12 Runtime error 542 ms 263168 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.
13 Execution timed out 1054 ms 263168 KB Time limit exceeded
14 Execution timed out 1051 ms 263168 KB Time limit exceeded
15 Execution timed out 1050 ms 263168 KB Time limit exceeded
16 Execution timed out 1048 ms 263168 KB Time limit exceeded
17 Execution timed out 1018 ms 263168 KB Time limit exceeded
18 Runtime error 950 ms 263168 KB Memory limit exceeded: We have a known bug that the memory usage is measured incorrectly (possibly because of Meltdown/Spectre patch), so your solution may be correct. Please submit again. Sorry for the inconvenience.

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1029 ms 263168 KB Time limit exceeded
2 Execution timed out 1029 ms 263168 KB Time limit exceeded
3 Execution timed out 1051 ms 263168 KB Time limit exceeded
4 Execution timed out 1052 ms 263168 KB Time limit exceeded
5 Execution timed out 1026 ms 263168 KB Time limit exceeded
6 Execution timed out 1040 ms 263168 KB Time limit exceeded
7 Execution timed out 1048 ms 263168 KB Time limit exceeded
8 Execution timed out 1034 ms 263168 KB Time limit exceeded
9 Execution timed out 1037 ms 263168 KB Time limit exceeded
10 Execution timed out 1062 ms 263168 KB Time limit exceeded
11 Execution timed out 1066 ms 263168 KB Time limit exceeded
12 Execution timed out 1041 ms 263168 KB Time limit exceeded
13 Execution timed out 1052 ms 263168 KB Time limit exceeded
14 Execution timed out 1046 ms 263168 KB Time limit exceeded
15 Execution timed out 1033 ms 263168 KB Time limit exceeded
16 Execution timed out 1041 ms 263168 KB Time limit exceeded
17 Execution timed out 1046 ms 263168 KB Time limit exceeded
18 Execution timed out 1022 ms 263168 KB Time limit exceeded

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1062 ms 263168 KB Time limit exceeded
2 Execution timed out 1071 ms 263168 KB Time limit exceeded
3 Execution timed out 1020 ms 263168 KB Time limit exceeded
4 Execution timed out 1055 ms 263168 KB Time limit exceeded
5 Execution timed out 1047 ms 263168 KB Time limit exceeded
6 Execution timed out 1049 ms 263168 KB Time limit exceeded
7 Execution timed out 1041 ms 263168 KB Time limit exceeded
8 Execution timed out 1027 ms 263168 KB Time limit exceeded
9 Execution timed out 1030 ms 263168 KB Time limit exceeded
10 Execution timed out 1033 ms 263168 KB Time limit exceeded
11 Execution timed out 1042 ms 263168 KB Time limit exceeded
12 Execution timed out 1051 ms 263168 KB Time limit exceeded
13 Execution timed out 1063 ms 263168 KB Time limit exceeded
14 Execution timed out 1040 ms 263168 KB Time limit exceeded
15 Execution timed out 1056 ms 263168 KB Time limit exceeded
16 Execution timed out 1054 ms 263168 KB Time limit exceeded
17 Execution timed out 1051 ms 263168 KB Time limit exceeded
18 Execution timed out 1052 ms 263168 KB Time limit exceeded
19 Execution timed out 1020 ms 263168 KB Time limit exceeded
20 Execution timed out 1037 ms 263168 KB Time limit exceeded
21 Execution timed out 1049 ms 263168 KB Time limit exceeded
22 Execution timed out 1047 ms 263168 KB Time limit exceeded
23 Execution timed out 1031 ms 263168 KB Time limit exceeded
24 Execution timed out 1034 ms 263168 KB Time limit exceeded
25 Execution timed out 1040 ms 263168 KB Time limit exceeded
26 Execution timed out 1029 ms 263168 KB Time limit exceeded
27 Execution timed out 1022 ms 263168 KB Time limit exceeded
28 Execution timed out 1027 ms 263168 KB Time limit exceeded
29 Execution timed out 1044 ms 263168 KB Time limit exceeded
30 Execution timed out 1026 ms 263168 KB Time limit exceeded
31 Execution timed out 1025 ms 263168 KB Time limit exceeded
32 Execution timed out 1054 ms 263168 KB Time limit exceeded
33 Execution timed out 1040 ms 263168 KB Time limit exceeded
34 Execution timed out 1029 ms 263168 KB Time limit exceeded
35 Execution timed out 1050 ms 263168 KB Time limit exceeded
36 Execution timed out 1024 ms 263168 KB Time limit exceeded
37 Execution timed out 1061 ms 263168 KB Time limit exceeded
38 Execution timed out 1055 ms 263168 KB Time limit exceeded
39 Execution timed out 1039 ms 263168 KB Time limit exceeded
40 Execution timed out 1032 ms 263168 KB Time limit exceeded
41 Execution timed out 1062 ms 263168 KB Time limit exceeded
42 Execution timed out 1059 ms 263168 KB Time limit exceeded