oj.uz

답안 #1022467

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1022467 2024-07-13T14:39:54 Z BuiDucManh123 Tree Rotations (POI11_rot) C++14
100 / 100
 320 ms 43856 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define ll long long
#define ull unsigned long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define int long long
using namespace std;
const int N=8e5+5;
int bit[N],sz[N],value[N],id=0,n,ans[N],l,r;
vector<int>g[N];
void input(){
    int x;
    cin>>x;
    value[id]=x;
    if (x) return;
    int k=id;
    g[k].push_back(++id);
    input();
    g[k].push_back(++id);
    input();
}
int getSum(int p) {
    int idx = p, res = 0;
    while (idx > 0) {
        res += bit[idx];
        idx -= (idx & (-idx));
    }
    return res;
}
void update(int u, int v) {
    int idx = u;
    while (idx <= N) {
        bit[idx] += v;
        idx += (idx & (-idx));
    }
}
void cnt(int id){
    if(value[id]){
        sz[id]=1;
        return;
    }for(int x:g[id]){
        cnt(x);
        sz[id]+=sz[x];
    }return;
}
void add(int id, int val){
    if(value[id]){
        update(value[id],val);
        return;
    }for(int x:g[id]) add(x,val);
}
void cal(int id){
    if(value[id]){
        l+=getSum(value[id]);
        r+=getSum(n)-getSum(value[id]);
        return;
    }for(int x:g[id]) cal(x);
}
void solve(int id){
    if(value[id]){
        update(value[id],1);
        return;
    }int x=g[id][0];
    int y=g[id][1];
    if(sz[x]>sz[y]) swap(x,y);
    solve(x);
    ans[id]+=ans[x];
    add(x,-1);
    solve(y);
    ans[id]+=ans[y];
    l=0;r=0;
    cal(x);
    add(x,1);
    ans[id]+=min(l,r);
    return;
}
signed main() {
    cin>>n;
    input();
    cnt(0);
    solve(0);
    cout<<ans[0];
	return 0;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 19292 KB Output is correct
2 Correct 9 ms 19260 KB Output is correct
3 Correct 9 ms 19248 KB Output is correct
4 Correct 9 ms 19288 KB Output is correct
5 Correct 8 ms 19292 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 19292 KB Output is correct
2 Correct 9 ms 19292 KB Output is correct
3 Correct 9 ms 19080 KB Output is correct
4 Correct 9 ms 19228 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 19240 KB Output is correct
2 Correct 9 ms 19288 KB Output is correct
3 Correct 9 ms 19144 KB Output is correct
4 Correct 13 ms 19292 KB Output is correct

Subtask #4
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 19804 KB Output is correct
2 Correct 13 ms 19616 KB Output is correct
3 Correct 12 ms 19804 KB Output is correct
4 Correct 14 ms 19760 KB Output is correct

Subtask #5
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 20828 KB Output is correct
2 Correct 18 ms 20312 KB Output is correct
3 Correct 51 ms 22096 KB Output is correct
4 Correct 17 ms 20828 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 64 ms 24036 KB Output is correct
2 Correct 48 ms 24660 KB Output is correct
3 Correct 48 ms 26196 KB Output is correct
4 Correct 71 ms 26348 KB Output is correct

Subtask #7
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 83 ms 31316 KB Output is correct
2 Correct 62 ms 29524 KB Output is correct
3 Correct 80 ms 28116 KB Output is correct
4 Correct 75 ms 27692 KB Output is correct

Subtask #8
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 106 ms 30140 KB Output is correct
2 Correct 105 ms 31240 KB Output is correct
3 Correct 90 ms 33644 KB Output is correct
4 Correct 86 ms 33360 KB Output is correct

Subtask #9
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 216 ms 37460 KB Output is correct
2 Correct 149 ms 36628 KB Output is correct
3 Correct 132 ms 36432 KB Output is correct
4 Correct 154 ms 35924 KB Output is correct
5 Correct 233 ms 34960 KB Output is correct

Subtask #10
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 136 ms 37456 KB Output is correct
2 Correct 148 ms 42064 KB Output is correct
3 Correct 169 ms 40552 KB Output is correct
4 Correct 129 ms 42852 KB Output is correct
5 Correct 280 ms 37204 KB Output is correct

Subtask #11
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 165 ms 37784 KB Output is correct
2 Correct 129 ms 39252 KB Output is correct
3 Correct 207 ms 37712 KB Output is correct
4 Correct 156 ms 38064 KB Output is correct
5 Correct 121 ms 43856 KB Output is correct
6 Correct 320 ms 37708 KB Output is correct