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Submission #653692

# Submission time Handle Problem Language Result Execution time Memory
653692 2022-10-27T17:17:56 Z PagodePaiva Martian DNA (BOI18_dna) C++14
100 / 100
 94 ms 5376 KB 
#include<bits/stdc++.h>
#define int long long 
#define ms(v) memset(v, -1, sizeof v)
#define pi pair<int, int>
#define pb push_back
#define fr first
#define sc second
#define all(x) x.begin(), x.end()
#define INF 1e15
#define mp make_pair
#define itn int
#define N 200010

using namespace std;

int n, k, r;
int v[N];
int q[N];
int qtd[N];

struct Seg{
    bool tree[4*N];

    bool join(int a, int b){
        if(a == false) return false;
        if(b == false) return false;
        return true;
    }

    void build(int node, int l, int r){
        if(l == r){
            tree[node] = false;
            return;
        }

        int mid = (l+r) >> 1;

        build(2*node, l, mid);
        build(2*node+1, mid+1, r);

        tree[node] = join(tree[2*node], tree[2*node+1]);

        return;
    }

    void update(int node, int l, int r, int pos, int val){
        if(l == r){
            tree[node] = val;
            return;
        }

        int mid = (l+r) >> 1;

        if(l <= pos and pos <= mid) update(2*node, l, mid, pos, val);
        else update(2*node+1, mid+1, r, pos, val);

        tree[node] = join(tree[2*node], tree[2*node+1]);

        return;
    }

    bool query(){
        return tree[1];
    }
} seg;

int32_t main(){
    ios::sync_with_stdio(false); cin.tie(0);
    cin >> n >> k >> r;

    for(int i = 1;i <= n;i++){
        cin >> v[i];
        v[i]++;
    }

    for(int i = 1;i <= r;i++){
        int a, b;
        cin >> a >> b;
        a++;
        q[a] = b;
    }

    int l = 1, r = 1;
    qtd[v[1]] = 1;
    int res = INF;

    seg.build(1, 1, k);

    for(int i = 1;i <= k;i++){
        if(qtd[i] >= q[i]) seg.update(1, 1, k, i, true);
    }

    while(r <= n){
        if(seg.query()){
            // cout << l << " " << r << "\n";
            // cout << qtd[1] << " " << qtd[2] << "\n";
            res = min(res, r-l+1);
            qtd[v[l]]--;
            seg.update(1, 1, k, v[l], (qtd[v[l]] >= q[v[l]] ? true : false));
            l++;

            if(l > r){
                r++;
                qtd[v[r]]++;
                seg.update(1, 1, k, v[r], (qtd[v[r]] >= q[v[r]] ? true : false));
            }
        }

        else{
            r++;
            qtd[v[r]]++;
            seg.update(1, 1, k, v[r], (qtd[v[r]] >= q[v[r]] ? true : false));
        }
    }

    if(res == INF) cout << "impossible\n";
    else cout << res << "\n";

    return 0;   
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 388 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 3 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 2148 KB Output is correct
2 Correct 12 ms 2132 KB Output is correct
3 Correct 20 ms 2132 KB Output is correct
4 Correct 16 ms 2048 KB Output is correct
5 Correct 58 ms 3028 KB Output is correct
6 Correct 20 ms 2132 KB Output is correct
7 Correct 31 ms 2080 KB Output is correct
8 Correct 94 ms 4228 KB Output is correct
9 Correct 47 ms 2376 KB Output is correct
10 Correct 26 ms 2268 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 3536 KB Output is correct
2 Correct 63 ms 3204 KB Output is correct
3 Correct 93 ms 3148 KB Output is correct
4 Correct 12 ms 2088 KB Output is correct
5 Correct 59 ms 3952 KB Output is correct
6 Correct 83 ms 5376 KB Output is correct
7 Correct 40 ms 2384 KB Output is correct
8 Correct 56 ms 2652 KB Output is correct
9 Correct 22 ms 2244 KB Output is correct
10 Correct 19 ms 2260 KB Output is correct
11 Correct 22 ms 2352 KB Output is correct
12 Correct 20 ms 2260 KB Output is correct
13 Correct 57 ms 3188 KB Output is correct
14 Correct 16 ms 2260 KB Output is correct
15 Correct 26 ms 2264 KB Output is correct
16 Correct 84 ms 4300 KB Output is correct
17 Correct 48 ms 2252 KB Output is correct
18 Correct 23 ms 2276 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 2 ms 388 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 2 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 276 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct