oj.uz

답안 #1067013

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1067013 2024-08-20T09:38:50 Z vux2code Tree Rotations (POI11_rot) C++14
63 / 100
 125 ms 50260 KB 
//Src : Vux2Code
#include <bits/stdc++.h>
using namespace std;

typedef int ll ;

const ll N = 10000005;
ll sum[N], ls[N], rs[N];
ll root[N], l[N], r[N], val[N];
ll ans, s1, s2;
ll cnt, n, seg;

void init(ll ro) {
    cin >> val[ro];
    if (!val[ro]) {
        l[ro] = ++cnt;
        init(l[ro]);
        r[ro] = ++cnt;
        init(r[ro]);
    }
}

void pushup(ll rt) {
    sum[rt] = sum[ls[rt]] + sum[rs[rt]];
}

void build(ll l, ll r, ll &rt, ll key) {
    if (!rt) rt = ++seg;
    if (l == r) {
        sum[rt]++;
        return;
    }
    ll mid = (l + r) >> 1;
    if (key <= mid) build(l, mid, ls[rt], key);
    else build(mid + 1, r, rs[rt], key);
    pushup(rt);
}

ll merge(ll r1, ll r2) {
    if (!r1 || !r2) return r1 + r2;
    s1 += (ll)sum[rs[r1]] * sum[ls[r2]];
    s2 += (ll)sum[ls[r1]] * sum[rs[r2]];
    ls[r1] = merge(ls[r1], ls[r2]);
    rs[r1] = merge(rs[r1], rs[r2]);
    pushup(r1);
    return r1;
}

void solve(ll ro) {
    if (!ro) return;
    solve(l[ro]);
    solve(r[ro]);
    if (!val[ro]) {
        s1 = s2 = 0;
        root[ro] = merge(root[l[ro]], root[r[ro]]);
        ans += min(s1, s2);
    }
}

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

    cin >> n;
    cnt = 1;
    init(1);
    for (ll i = 1; i <= cnt; ++i)
        if (val[i]) build(1, n, root[i], val[i]);
    solve(1);
    cout << ans;
    return 0;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct

Subtask #4
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1116 KB Output is correct
2 Correct 3 ms 1116 KB Output is correct
3 Correct 2 ms 1372 KB Output is correct
4 Correct 2 ms 1368 KB Output is correct

Subtask #5
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 2904 KB Output is correct
2 Correct 6 ms 2908 KB Output is correct
3 Correct 19 ms 7092 KB Output is correct
4 Correct 7 ms 3192 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 29 ms 11868 KB Output is correct
2 Correct 22 ms 11840 KB Output is correct
3 Correct 30 ms 13404 KB Output is correct
4 Correct 25 ms 14424 KB Output is correct

Subtask #7
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 52 ms 21724 KB Output is correct
2 Correct 59 ms 21416 KB Output is correct
3 Correct 47 ms 20568 KB Output is correct
4 Correct 43 ms 21080 KB Output is correct

Subtask #8
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 70 ms 29524 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 90 ms 44112 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 120 ms 47956 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 125 ms 50260 KB Output isn't correct
2 Halted 0 ms 0 KB -