oj.uz

Submission #216585

# Submission time Handle Problem Language Result Execution time Memory
216585 2020-03-27T15:19:18 Z maroonrk Ancient Books (IOI17_books) C++17
100 / 100
 515 ms 46848 KB 
#include "books.h"

#include <bits/stdc++.h>
using namespace std;

using ll=long long;
#define int ll

#define rng(i,a,b) for(int i=int(a);i<int(b);i++)
#define rep(i,b) rng(i,0,b)
#define gnr(i,a,b) for(int i=int(b)-1;i>=int(a);i--)
#define per(i,b) gnr(i,0,b)
#define pb push_back
#define eb emplace_back
#define a first
#define b second
#define bg begin()
#define ed end()
#define all(x) x.bg,x.ed
#define si(x) int(x.size())
#ifdef LOCAL
#define dmp(x) cerr<<__LINE__<<" "<<#x<<" "<<x<<endl
#else
#define dmp(x) void(0)
#endif

template<class t,class u> void chmax(t&a,u b){if(a<b)a=b;}
template<class t,class u> void chmin(t&a,u b){if(b<a)a=b;}

template<class t> using vc=vector<t>;
template<class t> using vvc=vc<vc<t>>;

using pi=pair<int,int>;
using vi=vc<int>;

template<class t,class u>
ostream& operator<<(ostream& os,const pair<t,u>& p){
	return os<<"{"<<p.a<<","<<p.b<<"}";
}

template<class t> ostream& operator<<(ostream& os,const vc<t>& v){
	os<<"{";
	for(auto e:v)os<<e<<",";
	return os<<"}";
}

#define mp make_pair
#define mt make_tuple
#define one(x) memset(x,-1,sizeof(x))
#define zero(x) memset(x,0,sizeof(x))
#ifdef LOCAL
void dmpr(ostream&os){os<<endl;}
template<class T,class... Args>
void dmpr(ostream&os,const T&t,const Args&... args){
	os<<t<<" ";
	dmpr(os,args...);
}
#define dmp2(...) dmpr(cerr,__LINE__,##__VA_ARGS__)
#else
#define dmp2(...) void(0)
#endif

using uint=unsigned;
using ull=unsigned long long;

template<class t,size_t n>
ostream& operator<<(ostream&os,const array<t,n>&a){
	return os<<vc<t>(all(a));
}

template<int i,class T>
void print_tuple(ostream&,const T&){
}

template<int i,class T,class H,class ...Args>
void print_tuple(ostream&os,const T&t){
	if(i)os<<",";
	os<<get<i>(t);
	print_tuple<i+1,T,Args...>(os,t);
}

template<class ...Args>
ostream& operator<<(ostream&os,const tuple<Args...>&t){
	os<<"{";
	print_tuple<0,tuple<Args...>,Args...>(os,t);
	return os<<"}";
}

template<class t>
void print(t x,int suc=1){
	cout<<x;
	if(suc==1)
		cout<<"\n";
	if(suc==2)
		cout<<" ";
}

ll read(){
	ll i;
	cin>>i;
	return i;
}

vi readvi(int n,int off=0){
	vi v(n);
	rep(i,n)v[i]=read()+off;
	return v;
}

template<class T>
void print(const vector<T>&v,int suc=1){
	rep(i,v.size())
		print(v[i],i==int(v.size())-1?suc:2);
}

string readString(){
	string s;
	cin>>s;
	return s;
}

template<class T>
T sq(const T& t){
	return t*t;
}

//#define CAPITAL
void yes(bool ex=true){
	#ifdef CAPITAL
	cout<<"YES"<<"\n";
	#else
	cout<<"Yes"<<"\n";
	#endif
	if(ex)exit(0);
}
void no(bool ex=true){
	#ifdef CAPITAL
	cout<<"NO"<<"\n";
	#else
	cout<<"No"<<"\n";
	#endif
	if(ex)exit(0);
}
void possible(bool ex=true){
	#ifdef CAPITAL
	cout<<"POSSIBLE"<<"\n";
	#else
	cout<<"Possible"<<"\n";
	#endif
	if(ex)exit(0);
}
void impossible(bool ex=true){
	#ifdef CAPITAL
	cout<<"IMPOSSIBLE"<<"\n";
	#else
	cout<<"Impossible"<<"\n";
	#endif
	if(ex)exit(0);
}

constexpr ll ten(int n){
	return n==0?1:ten(n-1)*10;
}

const ll infLL=LLONG_MAX/3;

#ifdef int
const int inf=infLL;
#else
const int inf=INT_MAX/2-100;
#endif

int topbit(signed t){
	return t==0?-1:31-__builtin_clz(t);
}
int topbit(ll t){
	return t==0?-1:63-__builtin_clzll(t);
}
int botbit(signed a){
	return a==0?32:__builtin_ctz(a);
}
int botbit(ll a){
	return a==0?64:__builtin_ctzll(a);
}
int popcount(signed t){
	return __builtin_popcount(t);
}
int popcount(ll t){
	return __builtin_popcountll(t);
}
bool ispow2(int i){
	return i&&(i&-i)==i;
}
ll mask(int i){
	return (ll(1)<<i)-1;
}

bool inc(int a,int b,int c){
	return a<=b&&b<=c;
}

template<class t> void mkuni(vc<t>&v){
	sort(all(v));
	v.erase(unique(all(v)),v.ed);
}

ll rand_int(ll l, ll r) { //[l, r]
	#ifdef LOCAL
	static mt19937_64 gen;
	#else
	static mt19937_64 gen(chrono::steady_clock::now().time_since_epoch().count());
	#endif
	return uniform_int_distribution<ll>(l, r)(gen);
}

template<class t>
void myshuffle(vc<t>&a){
	rep(i,si(a))swap(a[i],a[rand_int(0,i)]);
}

template<class t>
int lwb(const vc<t>&v,const t&a){
	return lower_bound(all(v),a)-v.bg;
}

int minimum_walk(vc<signed> p,signed s) {
	int n=si(p);
	int ans=0;
	vi sum(n);
	rep(i,n){
		int a=i,b=p[i];
		if(a>b)swap(a,b);
		ans+=b-a;
		sum[a]++;
		sum[b]--;
	}
	vi rev(n);
	rep(i,n)rev[p[i]]=i;
	rep(i,n-1)sum[i+1]+=sum[i];
	rep(i,n-1)if(sum[i]==0)ans+=2;
	
	vi dist(n,inf);
	priority_queue<pi,vc<pi>,greater<pi>> pq;
	auto reach=[&](int i,int d){
		if(dist[i]<=d)return;
		dist[i]=d;
		pq.emplace(d,i);
	};
	reach(s,0);
	int tar=s;
	while(sum[tar])tar++;
	while(1){
		int v,d;tie(d,v)=pq.top();pq.pop();
		if(v==tar)break;
		if(d!=dist[v])continue;
		reach(p[v],d);
		reach(rev[v],d);
		if(v-1>=0)reach(v-1,d+(v>s?0:1));
		if(v+1<n)reach(v+1,d+(v<s?0:1));
	}
	ans+=dist[tar]*2;
	
	rep(i,s)if(p[i]==i)ans-=2;
	else break;
	gnr(i,s+1,n)if(p[i]==i)ans-=2;
	else break;
	
	return ans;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 4 ms 256 KB Output is correct
17 Correct 4 ms 256 KB Output is correct
18 Correct 5 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 4 ms 256 KB Output is correct
17 Correct 4 ms 256 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 5 ms 256 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 4 ms 256 KB Output is correct
17 Correct 4 ms 256 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 5 ms 256 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 515 ms 46848 KB Output is correct
31 Correct 511 ms 46688 KB Output is correct
32 Correct 151 ms 38392 KB Output is correct
33 Correct 151 ms 38392 KB Output is correct
34 Correct 152 ms 38392 KB Output is correct
35 Correct 148 ms 38392 KB Output is correct
36 Correct 150 ms 38392 KB Output is correct
37 Correct 156 ms 38468 KB Output is correct
38 Correct 175 ms 38392 KB Output is correct
39 Correct 158 ms 38392 KB Output is correct
40 Correct 177 ms 38624 KB Output is correct
41 Correct 228 ms 40608 KB Output is correct
42 Correct 170 ms 38392 KB Output is correct
43 Correct 297 ms 42604 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 4 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 4 ms 256 KB Output is correct
8 Correct 5 ms 256 KB Output is correct
9 Correct 4 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 4 ms 256 KB Output is correct
16 Correct 4 ms 256 KB Output is correct
17 Correct 4 ms 256 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 5 ms 256 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 515 ms 46848 KB Output is correct
31 Correct 511 ms 46688 KB Output is correct
32 Correct 151 ms 38392 KB Output is correct
33 Correct 151 ms 38392 KB Output is correct
34 Correct 152 ms 38392 KB Output is correct
35 Correct 148 ms 38392 KB Output is correct
36 Correct 150 ms 38392 KB Output is correct
37 Correct 156 ms 38468 KB Output is correct
38 Correct 175 ms 38392 KB Output is correct
39 Correct 158 ms 38392 KB Output is correct
40 Correct 177 ms 38624 KB Output is correct
41 Correct 228 ms 40608 KB Output is correct
42 Correct 170 ms 38392 KB Output is correct
43 Correct 297 ms 42604 KB Output is correct
44 Correct 5 ms 384 KB Output is correct
45 Correct 5 ms 384 KB Output is correct
46 Correct 5 ms 384 KB Output is correct
47 Correct 5 ms 384 KB Output is correct
48 Correct 5 ms 384 KB Output is correct
49 Correct 5 ms 384 KB Output is correct
50 Correct 5 ms 384 KB Output is correct
51 Correct 5 ms 384 KB Output is correct
52 Correct 5 ms 384 KB Output is correct
53 Correct 5 ms 384 KB Output is correct
54 Correct 5 ms 384 KB Output is correct
55 Correct 5 ms 384 KB Output is correct
56 Correct 5 ms 384 KB Output is correct
57 Correct 5 ms 384 KB Output is correct
58 Correct 5 ms 384 KB Output is correct
59 Correct 5 ms 384 KB Output is correct
60 Correct 5 ms 384 KB Output is correct
61 Correct 5 ms 384 KB Output is correct
62 Correct 5 ms 384 KB Output is correct
63 Correct 5 ms 384 KB Output is correct
64 Correct 255 ms 39536 KB Output is correct
65 Correct 196 ms 38520 KB Output is correct
66 Correct 312 ms 38776 KB Output is correct
67 Correct 313 ms 39588 KB Output is correct
68 Correct 32 ms 4480 KB Output is correct
69 Correct 31 ms 4216 KB Output is correct
70 Correct 26 ms 4096 KB Output is correct
71 Correct 28 ms 4224 KB Output is correct
72 Correct 21 ms 4096 KB Output is correct
73 Correct 39 ms 4728 KB Output is correct
74 Correct 149 ms 38392 KB Output is correct
75 Correct 150 ms 38392 KB Output is correct
76 Correct 283 ms 42948 KB Output is correct
77 Correct 272 ms 40556 KB Output is correct
78 Correct 211 ms 39536 KB Output is correct
79 Correct 201 ms 38776 KB Output is correct
80 Correct 149 ms 38392 KB Output is correct
81 Correct 167 ms 38520 KB Output is correct
82 Correct 183 ms 38496 KB Output is correct
83 Correct 221 ms 38392 KB Output is correct
84 Correct 240 ms 38368 KB Output is correct
85 Correct 257 ms 38444 KB Output is correct
86 Correct 270 ms 38392 KB Output is correct
87 Correct 184 ms 38392 KB Output is correct
88 Correct 189 ms 38392 KB Output is correct
89 Correct 213 ms 38392 KB Output is correct
90 Correct 272 ms 38392 KB Output is correct
91 Correct 287 ms 38624 KB Output is correct
92 Correct 317 ms 38652 KB Output is correct