Submission #636262

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
636262	2022-08-28T16:34:35 Z	jame0313	Tree Rotations (POI11_rot)	C++17	63 / 100	264 ms	59840 KB

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using ld = long double;
using pll = pair<ll, ll>;
// and so on
int _cnt = 0;
int arr[200001];
struct segtree{
	vector<int> tree[(1<<19)+1];
    int siz;
	void init(int N){
		for(siz=1;siz<N;siz<<=1);
        for(int i=0;i<N;i++){
            tree[siz+i] = {arr[i]};
        }
        for(int pos=siz-1;pos;pos--){
            tree[pos] = tree[pos*2];
            tree[pos].insert(tree[pos].end(),tree[pos*2+1].begin(),tree[pos*2+1].end());
            sort(tree[pos].begin(),tree[pos].end());
        }
	}
	int sol(int l, int r, int s, int e, int pos, int v){
		if(s<=l && r<=e) return upper_bound(tree[pos].begin(),tree[pos].end(),v) - tree[pos].begin();
		if(e<l || r<s) return 0;
		return sol(l,(l+r)/2,s,e,pos*2,v)+sol((l+r)/2+1,r,s,e,pos*2+1,v);
	}
	int sol(int s, int e, int v){
		return sol(0,siz-1,s,e,1,v);
	}
} tree;
int in[200001];
int out[200001];
vector<vector<int> > mp;
int id = -1;
int parse(int x){
    int c;
    cin>>c;
    in[x] = x;
    if(c==0){
        int l = parse(++id);
        int r = parse(++id);
        mp[x].push_back(l);
        mp[x].push_back(r);
    }
    else{
        arr[x] = c;
    }
    out[x] = id;
    return in[x];
}
ll sol(int x) {
    ll ret = 0;
    if (arr[x] == 0) {
        int a = mp[x][0];
        int b = mp[x][1];
        ret += sol(a) + sol(b);
        if(out[a] - in[a] < out[b] - in[b]) swap(a, b);
        ll acnt = 0, bcnt = 0;
        int zero_cnt = tree.sol(in[a],out[a],0);
        int siz = out[a] - in[a] + 1 - zero_cnt;
        for(int i=in[b];i<=out[b];i++){
            if(!arr[i]) continue;
            int cnt = tree.sol(in[a],out[a],arr[i]-1) - zero_cnt;
            //cout<<cnt<<endl;
            acnt += cnt;
            bcnt += siz - cnt;
        }
        ret += min(acnt, bcnt);
        return ret;
 
    } else {
        return 0;
    }
}
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int N;
    cin >> N;
    mp.resize(2*N+1);
    int r = parse(++id);
    tree.init(id+1);
    cout<<sol(r);
    
}

Subtask #1
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	12628 KB	Output is correct
2	Correct	7 ms	12628 KB	Output is correct
3	Correct	10 ms	12628 KB	Output is correct
4	Correct	8 ms	12644 KB	Output is correct
5	Correct	7 ms	12628 KB	Output is correct

Subtask #2
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	12600 KB	Output is correct
2	Correct	10 ms	12628 KB	Output is correct
3	Correct	8 ms	12628 KB	Output is correct
4	Correct	9 ms	12628 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	12796 KB	Output is correct
2	Correct	9 ms	12924 KB	Output is correct
3	Correct	9 ms	12820 KB	Output is correct
4	Correct	8 ms	13012 KB	Output is correct

Subtask #4
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	16 ms	14576 KB	Output is correct
2	Correct	16 ms	14036 KB	Output is correct
3	Correct	18 ms	14836 KB	Output is correct
4	Correct	15 ms	14928 KB	Output is correct

Subtask #5
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	36 ms	18948 KB	Output is correct
2	Correct	42 ms	16880 KB	Output is correct
3	Correct	125 ms	22988 KB	Output is correct
4	Correct	34 ms	18764 KB	Output is correct

Subtask #6
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	185 ms	30592 KB	Output is correct
2	Correct	137 ms	33940 KB	Output is correct
3	Correct	176 ms	39132 KB	Output is correct
4	Correct	151 ms	39880 KB	Output is correct

Subtask #7
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	236 ms	59840 KB	Output is correct
2	Correct	264 ms	52704 KB	Output is correct
3	Correct	257 ms	46944 KB	Output is correct
4	Correct	199 ms	45288 KB	Output is correct

Subtask #8
0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	56 ms	49268 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #9
0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	60 ms	53824 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #10
0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	75 ms	57408 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #11
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	56 ms	58164 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Submission #636262

Compilation message