oj.uz

Submission #977281

# Submission time Handle Problem Language Result Execution time Memory
977281 2024-05-07T15:59:53 Z LOLOLO JJOOII 2 (JOI20_ho_t2) C++17
1 / 100
 1 ms 604 KB 
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
 
#define           f    first
#define           s    second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())
 
const int N = 2e3 + 100;
int pr[N], suff[N];

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

    vector <int> pos;
    deque <int> dq;
    int n, k;
    cin >> n >> k;

    string s;
    cin >> s;
    s = 'a' + s;
    
    for (int i = 1; i <= n; i++) {
        if (s[i] == 'O')
            pos.pb(i);
        
        pr[i] = -1;
        if (s[i] == 'J') {
            dq.push_back(i);
        }

        if (sz(dq) > k) {
            dq.pop_front();
        }

        if (sz(dq) == k) {
            pr[i] = dq.front();
        }
    }

    while (sz(dq))
        dq.pop_back();

    for (int i = n; i >= 1; i--) {
        suff[i] = -1;
        if (s[i] == 'I') {
            dq.push_back(i);
        }

        if (sz(dq) > k)
            dq.pop_front();

        if (sz(dq) == k) {
            suff[i] = dq.front();
        }
    }

    int ans = n + 1;
    for (int i = k - 1; i < sz(pos); i++) {
        int r = suff[pos[i]], l = pr[pos[i - k + 1]];
        if (r != -1 && l != -1) {
            ans = min(ans, r - l + 1 - k * 3);
        }
    }

    if (ans == n + 1)
        ans = -1;

    cout << ans << '\n';
    return 0;
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Runtime error 1 ms 604 KB Execution killed with signal 11
16 Halted 0 ms 0 KB -

Subtask #3
0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 600 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Runtime error 1 ms 604 KB Execution killed with signal 11
16 Halted 0 ms 0 KB -