oj.uz

Submission #579014

# Submission time Handle Problem Language Result Execution time Memory
579014 2022-06-18T09:51:38 Z ddy888 Martian DNA (BOI18_dna) C++17
100 / 100
 82 ms 9304 KB 
#undef _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb push_back
#define fi first
#define si second
typedef pair<int,int> pi;
typedef tuple<int,int,int> ti;  
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int MAXN = 200010, INF = 2e9;

int n, k, r;
int arr[MAXN];
int req[MAXN];
int cnt[MAXN];
set<int> bases;
int ans = INF;

void remove(int i) {
    if (!req[arr[i]]) return;
    --cnt[arr[i]];
    if (cnt[arr[i]] < req[arr[i]]) {
        if (*bases.lower_bound(arr[i]) == arr[i]) bases.erase(arr[i]);
    }
}

void add(int i) {
    if (!req[arr[i]]) return;
    ++cnt[arr[i]];
    if (cnt[arr[i]] >= req[arr[i]]) bases.insert(arr[i]);
}

bool check(int i) {
    if (!req[arr[i]]) return true;
    return (cnt[arr[i]] > req[arr[i]]);
}

int main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); 

    cin >> n >> k >> r;
    for (int i = 1; i <= n; ++i) cin >> arr[i];
    for (int i = 1; i <= r; ++i) {
        int x, y; cin >> x >> y;
        req[x] = y;
    }
    int l = 1;
    for (int i = 1; i <= n; ++i) {
        add(i);
        if ((int)bases.size() == r) {
            while (l < i && check(l)) {
                remove(l);
                ++l;
            }
            ans = min(ans, i - l + 1);
        }
    }
    if (ans == INF) cout << "impossible";
    else cout << ans;

    return 0;
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 0 ms 340 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 1 ms 340 KB Output is correct
4 Correct 1 ms 368 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 1 ms 328 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 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 332 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1108 KB Output is correct
2 Correct 12 ms 1520 KB Output is correct
3 Correct 15 ms 1512 KB Output is correct
4 Correct 14 ms 1492 KB Output is correct
5 Correct 16 ms 2244 KB Output is correct
6 Correct 16 ms 1496 KB Output is correct
7 Correct 13 ms 1636 KB Output is correct
8 Correct 21 ms 2444 KB Output is correct
9 Correct 19 ms 2036 KB Output is correct
10 Correct 14 ms 1516 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 340 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 352 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 328 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 212 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 82 ms 5376 KB Output is correct
2 Correct 54 ms 5916 KB Output is correct
3 Correct 29 ms 3796 KB Output is correct
4 Correct 17 ms 1424 KB Output is correct
5 Correct 31 ms 4044 KB Output is correct
6 Correct 77 ms 9304 KB Output is correct
7 Correct 35 ms 2508 KB Output is correct
8 Correct 37 ms 3108 KB Output is correct
9 Correct 12 ms 1492 KB Output is correct
10 Correct 12 ms 1492 KB Output is correct
11 Correct 15 ms 1492 KB Output is correct
12 Correct 13 ms 1512 KB Output is correct
13 Correct 20 ms 2252 KB Output is correct
14 Correct 15 ms 1432 KB Output is correct
15 Correct 13 ms 1628 KB Output is correct
16 Correct 26 ms 2432 KB Output is correct
17 Correct 19 ms 2000 KB Output is correct
18 Correct 14 ms 1492 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 1 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
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 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 332 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 332 KB Output is correct