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Submission #71435

# Submission time Handle Problem Language Result Execution time Memory
71435 2018-08-24T14:10:15 Z someone_aa Brunhilda’s Birthday (BOI13_brunhilda) C++17
1.11111 / 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, maxx;
vector<int>p[maxu];

void sieve() {
    memset(prime,true,sizeof(prime));
    prime[0] = prime[1] = false;
    for(int i=2;i<maxq;i++) {
        if(prime[i]) {
            for(int j=i;j<maxq;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;
       // maxx = max(maxx, primes[i] + 2);
    }

    for(int i=0;i<q;i++) {
        cin>>qi[i];
        maxq = max(maxq, qi[i] + 2);
    }
    solve();
    sieve();
    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
1.11111111111 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 243 ms 245128 KB Output isn't correct
2 Incorrect 235 ms 245376 KB Output isn't correct
3 Incorrect 238 ms 245524 KB Output isn't correct
4 Incorrect 226 ms 245524 KB Output isn't correct
5 Incorrect 216 ms 245524 KB Output isn't correct
6 Incorrect 215 ms 245524 KB Output isn't correct
7 Incorrect 241 ms 245544 KB Output isn't correct
8 Incorrect 242 ms 245632 KB Output isn't correct
9 Incorrect 240 ms 245632 KB Output isn't correct
10 Incorrect 253 ms 245632 KB Output isn't correct
11 Incorrect 231 ms 245776 KB Output isn't correct
12 Correct 225 ms 245776 KB Output is correct
13 Incorrect 232 ms 245932 KB Output isn't correct
14 Incorrect 232 ms 246088 KB Output isn't correct
15 Incorrect 230 ms 246088 KB Output isn't correct
16 Incorrect 228 ms 246088 KB Output isn't correct
17 Incorrect 248 ms 246088 KB Output isn't correct
18 Incorrect 230 ms 246088 KB Output isn't correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 829 ms 263168 KB Time limit exceeded (wall clock)
2 Execution timed out 1032 ms 263168 KB Time limit exceeded
3 Execution timed out 1016 ms 263168 KB Time limit exceeded (wall clock)
4 Runtime error 874 ms 263168 KB Execution killed with signal 9 (could be triggered by violating memory limits)
5 Execution timed out 1064 ms 263168 KB Time limit exceeded
6 Execution timed out 1088 ms 263168 KB Time limit exceeded
7 Execution timed out 1037 ms 263168 KB Time limit exceeded
8 Execution timed out 1082 ms 263168 KB Time limit exceeded
9 Execution timed out 1072 ms 263168 KB Time limit exceeded
10 Execution timed out 1035 ms 263168 KB Time limit exceeded
11 Execution timed out 1068 ms 263168 KB Time limit exceeded
12 Execution timed out 1060 ms 263168 KB Time limit exceeded
13 Execution timed out 1038 ms 263168 KB Time limit exceeded
14 Execution timed out 1032 ms 263168 KB Time limit exceeded
15 Execution timed out 1086 ms 263168 KB Time limit exceeded
16 Execution timed out 1076 ms 263168 KB Time limit exceeded
17 Execution timed out 1020 ms 263168 KB Time limit exceeded
18 Execution timed out 1053 ms 263168 KB Time limit exceeded

Subtask #3
0 / 60.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1034 ms 263168 KB Time limit exceeded
2 Execution timed out 1044 ms 263168 KB Time limit exceeded
3 Execution timed out 1049 ms 263168 KB Time limit exceeded
4 Execution timed out 1028 ms 263168 KB Time limit exceeded
5 Execution timed out 972 ms 263168 KB Time limit exceeded (wall clock)
6 Execution timed out 1055 ms 263168 KB Time limit exceeded
7 Execution timed out 1053 ms 263168 KB Time limit exceeded
8 Execution timed out 1059 ms 263168 KB Time limit exceeded
9 Execution timed out 1022 ms 263168 KB Time limit exceeded
10 Execution timed out 1053 ms 263168 KB Time limit exceeded
11 Execution timed out 1029 ms 263168 KB Time limit exceeded
12 Execution timed out 1025 ms 263168 KB Time limit exceeded
13 Execution timed out 1054 ms 263168 KB Time limit exceeded
14 Execution timed out 1045 ms 263168 KB Time limit exceeded
15 Execution timed out 1027 ms 263168 KB Time limit exceeded
16 Execution timed out 1040 ms 263168 KB Time limit exceeded
17 Execution timed out 1057 ms 263168 KB Time limit exceeded
18 Execution timed out 1032 ms 263168 KB Time limit exceeded
19 Execution timed out 1036 ms 263168 KB Time limit exceeded
20 Execution timed out 1040 ms 263168 KB Time limit exceeded
21 Execution timed out 1034 ms 263168 KB Time limit exceeded
22 Execution timed out 1053 ms 263168 KB Time limit exceeded
23 Execution timed out 1040 ms 263168 KB Time limit exceeded
24 Execution timed out 1055 ms 263168 KB Time limit exceeded
25 Execution timed out 1048 ms 263168 KB Time limit exceeded
26 Execution timed out 1041 ms 263168 KB Time limit exceeded
27 Execution timed out 1025 ms 263168 KB Time limit exceeded
28 Execution timed out 1027 ms 263168 KB Time limit exceeded
29 Execution timed out 1022 ms 263168 KB Time limit exceeded
30 Execution timed out 1026 ms 263168 KB Time limit exceeded
31 Execution timed out 1047 ms 263168 KB Time limit exceeded
32 Execution timed out 1027 ms 263168 KB Time limit exceeded
33 Execution timed out 1020 ms 263168 KB Time limit exceeded
34 Execution timed out 1050 ms 263168 KB Time limit exceeded
35 Execution timed out 1055 ms 263168 KB Time limit exceeded
36 Execution timed out 1036 ms 263168 KB Time limit exceeded
37 Execution timed out 1000 ms 263168 KB Time limit exceeded (wall clock)
38 Execution timed out 1054 ms 263168 KB Time limit exceeded
39 Execution timed out 1018 ms 263168 KB Time limit exceeded
40 Execution timed out 1044 ms 263168 KB Time limit exceeded
41 Execution timed out 1040 ms 263168 KB Time limit exceeded
42 Execution timed out 1029 ms 263168 KB Time limit exceeded