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Submission #998807

# Submission time Handle Problem Language Result Execution time Memory
998807 2024-06-14T17:07:29 Z underwaterkillerwhale Swap (BOI16_swap) C++17
68 / 100
 680 ms 262144 KB 
#include <bits/stdc++.h>
#define se              second
#define fs              first
#define mp              make_pair
#define pb              push_back
#define ll              long long
#define ii              pair<ll,ll>
#define ld              long double
#define SZ(v)           (int)v.size()
#define ALL(v)          v.begin(), v.end()
#define bit(msk, i)     ((msk >> i) & 1)
#define iter(id, v)     for(auto id : v)
#define rep(i,m,n)      for(int i=(m); i<=(n); i++)
#define reb(i,m,n)      for(int i=(m); i>=(n); i--)

using namespace std;

mt19937_64 rd(chrono :: steady_clock :: now().time_since_epoch().count());
ll Rand(ll l, ll r) { return uniform_int_distribution<ll> (l, r)(rd); }

const int N  = 2e5 + 7;
const int Mod = 998244353;
const int szBL = 916;
const int INF = 1e9;
const int BASE = 137;

int n;
int a[N << 2];
map<int, vector<int>> dp[N << 2];

vector<int> Merge (int A, vector<int> lc, vector<int> rc) {
    int ptr1 = 0, ptr2 = 0;
    vector<int> vec = {A};
    rep (i, 0, 20) {
        if ((1 << i) > SZ(lc) - ptr1) break;
        rep (j, 1, (1 << i)) vec.push_back(lc[ptr1++]);
        rep (j, 1, (1 << i)) {
            if (ptr2 < SZ(rc)) vec.push_back(rc[ptr2++]);
        }
    }
    while (ptr1 < SZ(lc)) vec.push_back(lc[ptr1++]);
    return vec;
}

bool compare (vector<int> v1, vector<int> v2) {
    int pos = 0;
    assert (SZ(v1) == SZ(v2));
    while (v1[pos] == v2[pos]) ++pos;
    return v1[pos] < v2[pos];
}

vector<int> calc (int id, int val);
void Assign (int root, int valr) {
    if (root * 2 > n) {
        dp[root][valr] = {valr};
        return;
    }
    if (root * 2 + 1 > n) {
        dp[root][valr] = {min(valr, a[root * 2]), max(valr, a[root * 2])};
        return;
    }
    int lc = root * 2, rc = root * 2 + 1;
    if (valr < a[lc] && valr < a[rc]) {
        vector<int> t1 = calc (lc, a[lc]), t2 = calc (rc, a[rc]);
        dp[root][valr] = Merge (valr, t1, t2);
    }
    else if (a[lc] < min (valr, a[rc])) {
        vector<int> t1 = calc (lc, valr), t2 = calc (rc, a[rc]);
        dp[root][valr] = Merge (a[lc], t1, t2);
    }
    else {
        int B = min (valr, a[lc]);
        int C = max (valr, a[lc]);
        int A = a[rc];
        vector<int> t1 = Merge (A, calc (lc, B), calc (rc, C)), t2 = Merge (A, calc (lc, C), calc (rc, B));
        if (compare (t1, t2)) dp[root][valr] = t1;
        else dp[root][valr] = t2;
    }
}

vector<int> calc (int id, int val) {
    if (id * 2 > n) {
        return vector<int> (1, val);
    }
    if (id * 2 + 1 > n) {
        return {min(val, a[id * 2]), max(val, a[id * 2])};
    }
    if (dp[id].find(val) != dp[id].end())
        return dp[id][val];
    Assign (id, val);
    return dp[id][val];
}

void solution () {
    cin >> n;
    rep (i, 1, n) cin >> a[i];
    vector<int> res;
    Assign (1, a[1]);
    iter (&id, dp[1][a[1]]) cout << id <<" ";
}

#define file(name) freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout);
int main () {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
//    file ("c");
    int num_Test = 1;
//    cin >> num_Test;
    while (num_Test--)
        solution();
}
/*
5 10
1 2
3 1
4 2
5 3
1 4
2 3
3 5
4 5
3 4
1 4

*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37980 KB Output is correct
2 Correct 13 ms 37908 KB Output is correct
3 Correct 13 ms 37980 KB Output is correct
4 Correct 13 ms 37980 KB Output is correct
5 Correct 14 ms 37864 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37980 KB Output is correct
2 Correct 13 ms 37908 KB Output is correct
3 Correct 13 ms 37980 KB Output is correct
4 Correct 13 ms 37980 KB Output is correct
5 Correct 14 ms 37864 KB Output is correct
6 Correct 13 ms 37980 KB Output is correct
7 Correct 12 ms 37976 KB Output is correct
8 Correct 14 ms 37852 KB Output is correct
9 Correct 14 ms 37980 KB Output is correct
10 Correct 13 ms 37980 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37980 KB Output is correct
2 Correct 13 ms 37908 KB Output is correct
3 Correct 13 ms 37980 KB Output is correct
4 Correct 13 ms 37980 KB Output is correct
5 Correct 14 ms 37864 KB Output is correct
6 Correct 13 ms 37980 KB Output is correct
7 Correct 12 ms 37976 KB Output is correct
8 Correct 14 ms 37852 KB Output is correct
9 Correct 14 ms 37980 KB Output is correct
10 Correct 13 ms 37980 KB Output is correct
11 Correct 14 ms 37980 KB Output is correct
12 Correct 14 ms 38260 KB Output is correct
13 Correct 14 ms 37980 KB Output is correct
14 Correct 15 ms 38372 KB Output is correct
15 Correct 16 ms 38492 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37980 KB Output is correct
2 Correct 13 ms 37908 KB Output is correct
3 Correct 13 ms 37980 KB Output is correct
4 Correct 13 ms 37980 KB Output is correct
5 Correct 14 ms 37864 KB Output is correct
6 Correct 13 ms 37980 KB Output is correct
7 Correct 12 ms 37976 KB Output is correct
8 Correct 14 ms 37852 KB Output is correct
9 Correct 14 ms 37980 KB Output is correct
10 Correct 13 ms 37980 KB Output is correct
11 Correct 14 ms 37980 KB Output is correct
12 Correct 14 ms 38260 KB Output is correct
13 Correct 14 ms 37980 KB Output is correct
14 Correct 15 ms 38372 KB Output is correct
15 Correct 16 ms 38492 KB Output is correct
16 Correct 49 ms 49864 KB Output is correct
17 Correct 48 ms 49552 KB Output is correct
18 Correct 52 ms 50052 KB Output is correct
19 Correct 236 ms 92936 KB Output is correct
20 Correct 220 ms 92344 KB Output is correct

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 37980 KB Output is correct
2 Correct 13 ms 37908 KB Output is correct
3 Correct 13 ms 37980 KB Output is correct
4 Correct 13 ms 37980 KB Output is correct
5 Correct 14 ms 37864 KB Output is correct
6 Correct 13 ms 37980 KB Output is correct
7 Correct 12 ms 37976 KB Output is correct
8 Correct 14 ms 37852 KB Output is correct
9 Correct 14 ms 37980 KB Output is correct
10 Correct 13 ms 37980 KB Output is correct
11 Correct 14 ms 37980 KB Output is correct
12 Correct 14 ms 38260 KB Output is correct
13 Correct 14 ms 37980 KB Output is correct
14 Correct 15 ms 38372 KB Output is correct
15 Correct 16 ms 38492 KB Output is correct
16 Correct 49 ms 49864 KB Output is correct
17 Correct 48 ms 49552 KB Output is correct
18 Correct 52 ms 50052 KB Output is correct
19 Correct 236 ms 92936 KB Output is correct
20 Correct 220 ms 92344 KB Output is correct
21 Correct 176 ms 89076 KB Output is correct
22 Correct 178 ms 89744 KB Output is correct
23 Correct 178 ms 90340 KB Output is correct
24 Runtime error 680 ms 262144 KB Execution killed with signal 9
25 Halted 0 ms 0 KB -