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Submission #436347

# Submission time Handle Problem Language Result Execution time Memory
436347 2021-06-24T12:50:05 Z cfalas Ancient Books (IOI17_books) C++14
0 / 100
 1 ms 332 KB 
#include "books.h"
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define INF 10000000
#define MOD 1000000007
#define MID ((l+r)/2)
#define HASHMOD 2305843009213693951
#define ll long long
#define ull unsigned long long
#define F first
#define S second
typedef pair<ll, ll> ii;
typedef pair<ii, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef map<int, int> mii;

#define EPS 1e-6
#define FOR(i,n) for(int i=0;i<((int)(n));i++)
#define FORi(i,a,b) for(int i=((int)(a));i<((int)(b));i++)
#define FOA(v, a) for(auto v : a)
#define len(x) ((int)x.size())

int t, n;
vi a, b;
int s;

vi p;

vector<int> adj;


long long minimum_walk(std::vector<int> pp, int ss) {
	s = ss;
	p = pp;
	int n = pp.size();
	ll ans=0;
	adj.resize(n);
	FOR(i,n){
		adj[i] = (p[i]);
	}
	vector<bool> vis(n, 0);
	set<int> lop;
	FOR(i,n) if(adj[i]!=i) lop.insert(i);
	FOR(i,n) ans+=abs(i-adj[i]);
	vi cl(n);
	FOR(i,n){
		cl[i] = 0;
		if(adj[i]>=i){
			FORi(j,i,adj[i]) cl[j] = 1;
			i = max(i, adj[i]-1);
		}
	}
	vi cr(n);
	for(int i=n-1;i>=0;i--){
		cr[i] = 0;
		if(adj[i]<=i){
			FORi(j,adj[i]+1, i+1) cr[j] = 1;
			i = min(i, adj[i]+1);
		}
	}
	FOR(i,n-1){
		//if(adj[i]==i) continue;
		bool ok = true;
		ok = (!cl[i] && !cr[i+1]);
		if(ok) ans+=2;
		//if(ok) cout<<i<<" ";
	}
	return ans;
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -