oj.uz

Submission #1030498

# Submission time Handle Problem Language Result Execution time Memory
1030498 2024-07-22T05:56:37 Z vjudge1 Ancient Books (IOI17_books) C++17
22 / 100
 1410 ms 1048576 KB 
#include "books.h"
#include<bits/stdc++.h>
#include <queue>
using namespace std;
#define rep(i,n) for(int i=0; i<(n); i++)
#define rng(i,l,r) for(int i=(l); i<(r); i++)
#define all(x) x.begin(),x.end()
using ll=long long;
const int INF=INT_MAX>>1;

struct SegTree{

	using T=pair<int,int>;
	inline T op(T x,T y){
		return {min(x.first,y.first),max(x.second,y.second)};
	}
	inline T e(){
		return {INF,-INF};
	}

	vector<T> tree;
	int size;
	SegTree(int sz):size(sz){
		tree.resize(size*2,e());
	}
	inline T get(int pos){
		return tree[pos+size];
	}
	inline void set(int pos,T val){
		tree[pos+size]=val;
	}
	T prod(int lf,int ri){
		lf+=size;
		ri+=size;
		T rl=e();
		T rr=e();
		while(lf<ri){
			if(lf&1){
				rl=op(rl,tree[lf]);
				lf++;
			}
			if(ri&1){
				ri--;
				rr=op(tree[ri],rr);
			}
			lf>>=1;
			ri>>=1;
		}
		return op(rl,rr);
	}
};

long long minimum_walk(std::vector<int> p, int s) {
	int n=p.size();
	vector<int> vis(n,-1);
	vector<pair<int,int>> wide;
	int cnt=0;
	ll ans=0;
	rep(i,n){
		if(vis[i]>=0)continue;
		if(p[i]==i&&i!=s)continue;
		int lf=i;
		int ri=i;
		int pos=i;
		while(vis[p[pos]]==-1){
			ans+=abs(pos-p[pos]);
			pos=p[pos];
			vis[pos]=cnt;
			lf=min(lf,pos);
			ri=max(ri,pos);
		}
		cnt++;
		wide.emplace_back(lf,ri);
	}
	vector<int> dist(cnt,0);
	/*
	SegTree seg(n);
	rep(i,n){
		if(vis[i]!=-1)seg.set(i,{i,i});
	}*/
	priority_queue<pair<int,int>,vector<pair<int,int>>,greater<pair<int,int>>> pq;
	pq.push({0,vis[s]});
	while(!pq.empty()){
		int dis,pos;
		tie(dis,pos)=pq.top();
		pq.pop();
		if(dist[pos])continue;
		dist[pos]=1;
		ans+=dis*2;
		int lf,ri;
		tie(lf,ri)=wide[pos];
		rep(i,n){
			if(vis[i]==-1)continue;
			//if(dist[vis[i]])continue;
			if(i<lf){
				pq.push({abs(i-lf),vis[i]});
			}
			else if(ri<i){
				pq.push({abs(i-ri),vis[i]});
			}
			else{
				pq.push({0,vis[i]});
			}
		}
		/*
		while(true){
			int nxt=seg.prod(lf+1,ri).first;
			if(nxt>n)break;
			seg.set(nxt,seg.e());
			if(dist[vis[nxt]]==-1){
				pq.push({0,vis[nxt]});
			}
		}
		int nxt;
		nxt=seg.prod(0,lf).second;
		if(nxt>=0){
			if(dist[vis[nxt]]==-1){
				pq.push({abs(nxt-lf),vis[nxt]});
			}
		}
		nxt=seg.prod(ri+1,n).first;
		if(nxt<n){
			if(dist[vis[nxt]]==-1){
				pq.push({abs(nxt-ri),vis[nxt]});
			}
		}*/
	}
	return ans;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory 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
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 440 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 440 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 600 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory 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
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 440 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 440 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 600 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 12 ms 1492 KB Output is correct
23 Correct 12 ms 1492 KB Output is correct
24 Correct 17 ms 2508 KB Output is correct
25 Correct 19 ms 2512 KB Output is correct
26 Correct 15 ms 1492 KB Output is correct
27 Correct 8 ms 1492 KB Output is correct
28 Correct 5 ms 984 KB Output is correct
29 Correct 13 ms 1492 KB Output is correct

Subtask #3
0 / 28.0

# Verdict Execution time Memory 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
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 440 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 440 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 600 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 12 ms 1492 KB Output is correct
23 Correct 12 ms 1492 KB Output is correct
24 Correct 17 ms 2508 KB Output is correct
25 Correct 19 ms 2512 KB Output is correct
26 Correct 15 ms 1492 KB Output is correct
27 Correct 8 ms 1492 KB Output is correct
28 Correct 5 ms 984 KB Output is correct
29 Correct 13 ms 1492 KB Output is correct
30 Correct 648 ms 35244 KB Output is correct
31 Correct 847 ms 35252 KB Output is correct
32 Correct 68 ms 18656 KB Output is correct
33 Runtime error 1410 ms 1048576 KB Execution killed with signal 9
34 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 1488 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3324'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory 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
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 440 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 440 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 600 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 12 ms 1492 KB Output is correct
23 Correct 12 ms 1492 KB Output is correct
24 Correct 17 ms 2508 KB Output is correct
25 Correct 19 ms 2512 KB Output is correct
26 Correct 15 ms 1492 KB Output is correct
27 Correct 8 ms 1492 KB Output is correct
28 Correct 5 ms 984 KB Output is correct
29 Correct 13 ms 1492 KB Output is correct
30 Correct 648 ms 35244 KB Output is correct
31 Correct 847 ms 35252 KB Output is correct
32 Correct 68 ms 18656 KB Output is correct
33 Runtime error 1410 ms 1048576 KB Execution killed with signal 9
34 Halted 0 ms 0 KB -