Submission #1022466

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1022466	2024-07-13T14:38:20 Z	vjudge1	Tree Rotations (POI11_rot)	C++14	100 / 100	293 ms	43640 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];
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);
}int l,r;
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

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	19288 KB	Output is correct
2	Correct	9 ms	19292 KB	Output is correct
3	Correct	9 ms	19292 KB	Output is correct
4	Correct	9 ms	19272 KB	Output is correct
5	Correct	11 ms	19292 KB	Output is correct

Subtask #2
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	19288 KB	Output is correct
2	Correct	9 ms	19292 KB	Output is correct
3	Correct	9 ms	19292 KB	Output is correct
4	Correct	9 ms	19292 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	19288 KB	Output is correct
2	Correct	9 ms	19268 KB	Output is correct
3	Correct	13 ms	19292 KB	Output is correct
4	Correct	13 ms	19188 KB	Output is correct

Subtask #4
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	11 ms	19800 KB	Output is correct
2	Correct	12 ms	19548 KB	Output is correct
3	Correct	12 ms	19680 KB	Output is correct
4	Correct	11 ms	19804 KB	Output is correct

Subtask #5
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	15 ms	20828 KB	Output is correct
2	Correct	21 ms	20312 KB	Output is correct
3	Correct	43 ms	22108 KB	Output is correct
4	Correct	18 ms	20800 KB	Output is correct

Subtask #6
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	60 ms	23972 KB	Output is correct
2	Correct	52 ms	24712 KB	Output is correct
3	Correct	49 ms	26096 KB	Output is correct
4	Correct	49 ms	26456 KB	Output is correct

Subtask #7
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	53 ms	31320 KB	Output is correct
2	Correct	67 ms	29488 KB	Output is correct
3	Correct	76 ms	27988 KB	Output is correct
4	Correct	61 ms	27472 KB	Output is correct

Subtask #8
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	89 ms	30252 KB	Output is correct
2	Correct	80 ms	31312 KB	Output is correct
3	Correct	83 ms	33620 KB	Output is correct
4	Correct	82 ms	33504 KB	Output is correct

Subtask #9
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	209 ms	37456 KB	Output is correct
2	Correct	148 ms	36436 KB	Output is correct
3	Correct	130 ms	36436 KB	Output is correct
4	Correct	151 ms	35720 KB	Output is correct
5	Correct	238 ms	34896 KB	Output is correct

Subtask #10
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	140 ms	37200 KB	Output is correct
2	Correct	144 ms	41804 KB	Output is correct
3	Correct	162 ms	40272 KB	Output is correct
4	Correct	133 ms	42576 KB	Output is correct
5	Correct	276 ms	36944 KB	Output is correct

Subtask #11
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	158 ms	37712 KB	Output is correct
2	Correct	137 ms	38916 KB	Output is correct
3	Correct	211 ms	37712 KB	Output is correct
4	Correct	173 ms	37712 KB	Output is correct
5	Correct	143 ms	43640 KB	Output is correct
6	Correct	293 ms	37460 KB	Output is correct

Submission #1022466

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