| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 250498 |
2020-07-18T08:30:58 Z |
leaked |
Doktor (COCI17_doktor) |
C++14 |
|
151 ms |
38888 KB |
#include<bits/stdc++.h>
using namespace std;
//#include<ext/pb_ds/assoc_container.hpp>
//#include<ext/pb_ds/tree_policy.hpp>
////
// #pragma GCC optimize("unroll-loops")
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("-O3")
// #pragma GCC optimize("no-stack-protector")
// #pragma GCC optimize("fast-math")
//////#define LOCAL
#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cout << *x, 0);
sim > char dud(...);
struct debug {
#ifndef LOCAL
~debug() { cout << endl; }
eni(!=) cout << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
*this << "[";
for (auto it = d.b; it != d.e; ++it)
*this << ", " + 2 * (it == d.b) << *it;
ris << "]";
}
#else
sim dor(const c&) { ris; }
#endif
};
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
#define fi first
#define f first
#define se second
#define s second
#define vi_a vector<int>a;
#define p_b push_back
////////////////////////////////???????????????CHECK THIS OUT???????????????//////////////////////////////
#define ll long long
//#define ull unsigned long long
typedef unsigned long long ull;
////////////////////////////////???????????????CHECK THIS OUT???????????????//////////////////////////////
#define ld long double
#define pll pair<ll,ll>
#define pii pair<int,int>
#define m_p make_pair
#define fast_io cin.tie(0);cout.tie(0);ios_base::sync_with_stdio(0);
#define all(x) x.begin(),x.end()
#define getfiles ifstream cin("input.txt");ofstream cout("output.txt");
#define pw(x) (1ll << x)
#define sz(x) (ll)x.size()
#define endl "\n"
#define rall(x) x.rbegin(),x.rend()
#define len(a) (ll)a.size()
#define rep(x,l,r) for(ll x=l;x<r;x++)
//using namespace __gnu_pbds;
ld eps = (ld)1 / 1e6;
const ld pi=3.14159265359;
ll inf = 1e18,mod1=1e9+7;
ll sqr(ll a) { return a * a; }
ll qb(ll a) { return a * a * a; }
ll gcd(ll a, ll b) { return !a ? b : gcd(b % a, a); }
void binary(ll val,int to) {for(int i=0;i<to;i++) cerr<<(pw(i) & val ? 1 : 0); cerr<<endl;}
ll binpow(ll a, ll b, ll mod) { return b ? (b % 2 ? (a * (sqr(binpow(a, b / 2, mod)) % mod)) % mod : sqr(binpow(a, b / 2, mod)) % mod) : 1; }
ll binmult(ll a, ll b, ll mod) { return b ? (b % 2 ? (2 * binmult(a, b / 2, mod) + a) % mod : (2 * binmult(a, b / 2, mod)) % mod) : 0; }
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
const ll R=1e4;
const ll tx[4]={1,0,-1,0};
const ll ty[4]={0,1,0,-1};
const char rev_to[4]={'E','W','N','S'};
const int N=5e5+1;
const int M=1e9+7;
//typedef tree<pii,null_type,less<pii>,rb_tree_tag,tree_order_statistics_node_update> st;
map<int,ll>dp[N];
int s[N];
pii pp[N][2];
signed main()
{
fast_io;
// freopen("in.txt","r",stdin);
// freopen("out.txt","w",stdout);
int n;
cin>>n;
vector<int>a(n);
for(auto &z : a) cin>>z,z--;
vector<int>p(n);
for(int i=0;i<n;i++)p[a[i]]=i;
// int ans=0;
vector<pii>to[2];
for(int i=0;i<n;i++){
to[(i+p[i])%2].p_b({max(i,p[i])-(i+p[i])/2,(i+p[i])/2});
}
for(auto &z : to) sort(all(z));
vector<int>pref(n,0);
pref[0]=a[0]==0;
for(int i=1;i<n;i++){
pref[i]=pref[i-1];
pref[i]+=a[i]==i;
}
int ans=pref[n-1];
int pr=pref[n-1];
pii a1={0,0};
auto get=[&](int l,int r){
return pref[r]-(l ? pref[l-1] : 0);
};
for(auto &g : to[0]){
s[g.s]++;
int got_it=pr+s[g.s]-get(g.s-g.f,g.s+g.f);
// debug()<<imie(ans)<<imie(s[g.s])<<imie(g.s-g.f)<<imie(get(g.s-g.f,g.s+g.f))<<imie(got_it)<<imie(g)<<endl;
if(got_it>ans){
ans=got_it;
a1=pii(g.s-g.f,g.s+g.f);
}
}
// cout<<ans<<endl;
for(int i=0;i<n;i++) s[i]=0;
for(auto &g : to[1]){
s[g.s]++;
int got_it=pr+s[g.s]-get(g.s-g.f+1,g.s+g.f);
// debug()<<imie(ans)<<imie(s[g.s])<<imie(g.s-g.f+1)<<imie(get(g.s-g.f+1,g.s+g.f))<<imie(got_it)<<endl;
if(got_it>ans){
ans=got_it;
a1=pii(g.s-g.f+1,g.s+g.f);
}
}
// cout<<ans<<endl;
cout<<a[a1.f]+1<<' '<<a[a1.s]+1;
return 0;
}
/*
3 6 5 7 4 1 2
2 1 4 7 5 6 3
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
14 ms |
23808 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
14 ms |
23808 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
17 ms |
23808 KB |
Output is correct |
| 2 |
Correct |
17 ms |
23848 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
18 ms |
23936 KB |
Output is correct |
| 2 |
Correct |
15 ms |
23936 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
17 ms |
23936 KB |
Output is correct |
| 2 |
Correct |
17 ms |
23936 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
18 ms |
23964 KB |
Output is correct |
| 2 |
Correct |
17 ms |
23808 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
16 ms |
24192 KB |
Output is correct |
| 2 |
Correct |
90 ms |
32904 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
35 ms |
26072 KB |
Output is correct |
| 2 |
Correct |
42 ms |
26736 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
151 ms |
35424 KB |
Output is correct |
| 2 |
Correct |
141 ms |
38888 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
85 ms |
30696 KB |
Output is correct |
| 2 |
Correct |
98 ms |
38376 KB |
Output is correct |
