oj.uz

Submission #228292

# Submission time Handle Problem Language Result Execution time Memory
228292 2020-04-30T12:05:34 Z computerbox Arranging Shoes (IOI19_shoes) C++14
100 / 100
 410 ms 33400 KB 
#include <bits/stdc++.h>
#include <cstdio>
#include <cassert>
#include "shoes.h"


#define ll int
#define pb push_back
#define all(x) (x).begin(), (x).end()

using namespace std;


ll t[4*200010];
ll tadd[4*200010];

void push(ll v,ll l,ll r)
{
  if(tadd[v]!=0)
  {
	  t[v]+=tadd[v];
	  if(l!=r)
	  {
		tadd[v*2]+=tadd[v];
		tadd[v*2+1]+=tadd[v];  
	  }
	  tadd[v]=0;	  
  }	
}

void build(ll v,ll l,ll r)
{
  if(l==r)
  {
	t[v]=l;
	return ;  
  }	
  ll mid=l+(r-l)/2;
  build(v*2,l,mid);
  build(v*2+1,mid+1,r);
  t[v]=max(t[v*2],t[v*2+1]);
}

void update1(ll v,ll l,ll r,ll nac,ll konec,ll x)
{
   push(v,l,r);
   if(l>konec || r<nac)return ;
   if(l>=nac && r<=konec)
   {
	 tadd[v]+=x;
	 push(v,l,r);
	 return ;   
   }	
   ll mid=l+(r-l)/2;
   update1(v*2,l,mid,nac,konec,x);
   update1(v*2+1,mid+1,r,nac,konec,x);
   t[v]=max(t[v*2],t[v*2+1]);
}

void update2(ll v,ll l,ll r,ll pos,ll x)
{
   push(v,l,r);
   if(l==r)
   {
	 t[v]=x;
	 return ;   
   }	
   ll mid=l+(r-l)/2;
   if(pos<=mid)update2(v*2,l,mid,pos,x);
   else update2(v*2+1,mid+1,r,pos,x);
   t[v]=max(t[v*2],t[v*2+1]);
}

ll query(ll v,ll l,ll r,ll pos)
{
  push(v,l,r);
  if(l==r)
  {
	return t[v];  
  }
  ll mid=l+(r-l)/2;
  if(pos<=mid)return query(v*2,l,mid,pos);
  else return query(v*2+1,mid+1,r,pos);
}

vector<ll>leftt[200010];
vector<ll>rightt[200010];
ll used[200010];


long long count_swaps(vector<int>massiv)
{
  ll n=(ll)massiv.size();
  set<ll>nuj;
  build(1,1,n);
  for(ll i=0;i<n;i++)
  {
    if(massiv[i]<0)leftt[abs(massiv[i])].pb(i+1);
    else rightt[massiv[i]].pb(i+1);  
    nuj.insert(massiv[i]);
  }
  for(auto i:nuj)
  {
    if(i<0)reverse(all(leftt[abs(i)]));
    else reverse(all(rightt[i]));  
  }
  long long ans=0;
  for(ll i=0;i<n;i++)
  {
	if(used[i+1])continue;
    if(massiv[i]>0)
    {
	  rightt[massiv[i]].pop_back();	
	  ll pos=leftt[massiv[i]].back();
	  used[pos]=1;
	  used[i+1]=1;
	  leftt[massiv[i]].pop_back();
	  ll pos1=query(1,1,n,pos);
	  ll pos2=query(1,1,n,i+1);
	  ans+=pos1-pos2;
	  update1(1,1,n,i+2,pos-1,1);
	  update2(1,1,n,i+1,pos2+1);
	  update2(1,1,n,pos,pos2);
    }
    else if(massiv[i]<0)
    {
	  leftt[-massiv[i]].pop_back();	
	  ll pos=rightt[-massiv[i]].back();
	  used[pos]=1;
	  used[i+1]=1;
	  rightt[-massiv[i]].pop_back();
	  ll pos1=query(1,1,n,pos);
	  ll pos2=query(1,1,n,i+1);
	  ans+=((pos1-pos2)-1);
	  update1(1,1,n,i+2,pos-1,1);	
	  update2(1,1,n,pos,pos2+1);
    }  
  }
  return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct
3 Correct 9 ms 9728 KB Output is correct
4 Correct 10 ms 9728 KB Output is correct
5 Correct 10 ms 9856 KB Output is correct
6 Correct 10 ms 9728 KB Output is correct
7 Correct 10 ms 9856 KB Output is correct
8 Correct 9 ms 9728 KB Output is correct
9 Correct 9 ms 9728 KB Output is correct
10 Correct 10 ms 9728 KB Output is correct
11 Correct 10 ms 9728 KB Output is correct
12 Correct 9 ms 9728 KB Output is correct
13 Correct 10 ms 9728 KB Output is correct
14 Correct 10 ms 9728 KB Output is correct
15 Correct 10 ms 9728 KB Output is correct
16 Correct 10 ms 9728 KB Output is correct
17 Correct 10 ms 9728 KB Output is correct
18 Correct 10 ms 9728 KB Output is correct
19 Correct 10 ms 9728 KB Output is correct
20 Correct 9 ms 9728 KB Output is correct
21 Correct 10 ms 9728 KB Output is correct
22 Correct 9 ms 9728 KB Output is correct
23 Correct 10 ms 9728 KB Output is correct
24 Correct 9 ms 9728 KB Output is correct
25 Correct 9 ms 9728 KB Output is correct
26 Correct 10 ms 9728 KB Output is correct
27 Correct 9 ms 9728 KB Output is correct
28 Correct 11 ms 9856 KB Output is correct
29 Correct 10 ms 9728 KB Output is correct
30 Correct 9 ms 9728 KB Output is correct
31 Correct 9 ms 9728 KB Output is correct
32 Correct 10 ms 9728 KB Output is correct
33 Correct 9 ms 9728 KB Output is correct
34 Correct 10 ms 9728 KB Output is correct
35 Correct 10 ms 9728 KB Output is correct
36 Correct 9 ms 9728 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct
3 Correct 9 ms 9728 KB Output is correct
4 Correct 10 ms 9728 KB Output is correct
5 Correct 9 ms 9728 KB Output is correct
6 Correct 10 ms 9728 KB Output is correct
7 Correct 9 ms 9728 KB Output is correct
8 Correct 10 ms 9856 KB Output is correct
9 Correct 9 ms 9728 KB Output is correct
10 Correct 9 ms 9728 KB Output is correct
11 Correct 9 ms 9728 KB Output is correct
12 Correct 9 ms 9728 KB Output is correct
13 Correct 10 ms 9728 KB Output is correct
14 Correct 9 ms 9728 KB Output is correct
15 Correct 9 ms 9728 KB Output is correct
16 Correct 9 ms 9728 KB Output is correct
17 Correct 10 ms 9728 KB Output is correct
18 Correct 10 ms 9728 KB Output is correct
19 Correct 10 ms 9728 KB Output is correct
20 Correct 18 ms 10624 KB Output is correct
21 Correct 20 ms 10624 KB Output is correct
22 Correct 118 ms 17172 KB Output is correct
23 Correct 97 ms 16492 KB Output is correct
24 Correct 112 ms 18412 KB Output is correct
25 Correct 126 ms 18160 KB Output is correct
26 Correct 127 ms 18412 KB Output is correct
27 Correct 103 ms 16236 KB Output is correct
28 Correct 131 ms 18516 KB Output is correct
29 Correct 132 ms 18412 KB Output is correct
30 Correct 130 ms 18544 KB Output is correct
31 Correct 114 ms 18436 KB Output is correct
32 Correct 119 ms 18288 KB Output is correct
33 Correct 121 ms 18160 KB Output is correct
34 Correct 131 ms 18288 KB Output is correct
35 Correct 10 ms 9728 KB Output is correct
36 Correct 10 ms 9728 KB Output is correct
37 Correct 118 ms 18416 KB Output is correct
38 Correct 118 ms 18416 KB Output is correct
39 Correct 118 ms 18288 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 10 ms 9728 KB Output is correct
3 Correct 10 ms 9728 KB Output is correct
4 Correct 10 ms 9728 KB Output is correct
5 Correct 276 ms 31868 KB Output is correct
6 Correct 168 ms 19832 KB Output is correct
7 Correct 291 ms 33144 KB Output is correct
8 Correct 122 ms 18456 KB Output is correct
9 Correct 286 ms 33228 KB Output is correct
10 Correct 227 ms 25336 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct
3 Correct 9 ms 9728 KB Output is correct
4 Correct 10 ms 9728 KB Output is correct
5 Correct 10 ms 9856 KB Output is correct
6 Correct 10 ms 9728 KB Output is correct
7 Correct 10 ms 9856 KB Output is correct
8 Correct 9 ms 9728 KB Output is correct
9 Correct 9 ms 9728 KB Output is correct
10 Correct 10 ms 9728 KB Output is correct
11 Correct 10 ms 9728 KB Output is correct
12 Correct 9 ms 9728 KB Output is correct
13 Correct 10 ms 9728 KB Output is correct
14 Correct 10 ms 9728 KB Output is correct
15 Correct 10 ms 9728 KB Output is correct
16 Correct 10 ms 9728 KB Output is correct
17 Correct 10 ms 9728 KB Output is correct
18 Correct 10 ms 9728 KB Output is correct
19 Correct 10 ms 9728 KB Output is correct
20 Correct 9 ms 9728 KB Output is correct
21 Correct 10 ms 9728 KB Output is correct
22 Correct 9 ms 9728 KB Output is correct
23 Correct 10 ms 9728 KB Output is correct
24 Correct 9 ms 9728 KB Output is correct
25 Correct 9 ms 9728 KB Output is correct
26 Correct 10 ms 9728 KB Output is correct
27 Correct 9 ms 9728 KB Output is correct
28 Correct 11 ms 9856 KB Output is correct
29 Correct 10 ms 9728 KB Output is correct
30 Correct 9 ms 9728 KB Output is correct
31 Correct 9 ms 9728 KB Output is correct
32 Correct 10 ms 9728 KB Output is correct
33 Correct 9 ms 9728 KB Output is correct
34 Correct 10 ms 9728 KB Output is correct
35 Correct 10 ms 9728 KB Output is correct
36 Correct 9 ms 9728 KB Output is correct
37 Correct 10 ms 9728 KB Output is correct
38 Correct 10 ms 9728 KB Output is correct
39 Correct 10 ms 9728 KB Output is correct
40 Correct 10 ms 9856 KB Output is correct
41 Correct 11 ms 9984 KB Output is correct
42 Correct 11 ms 9984 KB Output is correct
43 Correct 11 ms 9856 KB Output is correct
44 Correct 12 ms 9984 KB Output is correct
45 Correct 11 ms 9856 KB Output is correct
46 Correct 11 ms 9856 KB Output is correct
47 Correct 11 ms 9856 KB Output is correct
48 Correct 12 ms 9856 KB Output is correct
49 Correct 11 ms 9760 KB Output is correct
50 Correct 11 ms 9856 KB Output is correct
51 Correct 11 ms 9728 KB Output is correct
52 Correct 11 ms 9984 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9728 KB Output is correct
2 Correct 9 ms 9728 KB Output is correct
3 Correct 9 ms 9728 KB Output is correct
4 Correct 10 ms 9728 KB Output is correct
5 Correct 10 ms 9856 KB Output is correct
6 Correct 10 ms 9728 KB Output is correct
7 Correct 10 ms 9856 KB Output is correct
8 Correct 9 ms 9728 KB Output is correct
9 Correct 9 ms 9728 KB Output is correct
10 Correct 10 ms 9728 KB Output is correct
11 Correct 10 ms 9728 KB Output is correct
12 Correct 9 ms 9728 KB Output is correct
13 Correct 10 ms 9728 KB Output is correct
14 Correct 10 ms 9728 KB Output is correct
15 Correct 10 ms 9728 KB Output is correct
16 Correct 10 ms 9728 KB Output is correct
17 Correct 10 ms 9728 KB Output is correct
18 Correct 10 ms 9728 KB Output is correct
19 Correct 10 ms 9728 KB Output is correct
20 Correct 9 ms 9728 KB Output is correct
21 Correct 10 ms 9728 KB Output is correct
22 Correct 9 ms 9728 KB Output is correct
23 Correct 10 ms 9728 KB Output is correct
24 Correct 9 ms 9728 KB Output is correct
25 Correct 9 ms 9728 KB Output is correct
26 Correct 10 ms 9728 KB Output is correct
27 Correct 9 ms 9728 KB Output is correct
28 Correct 11 ms 9856 KB Output is correct
29 Correct 10 ms 9728 KB Output is correct
30 Correct 9 ms 9728 KB Output is correct
31 Correct 9 ms 9728 KB Output is correct
32 Correct 10 ms 9728 KB Output is correct
33 Correct 9 ms 9728 KB Output is correct
34 Correct 10 ms 9728 KB Output is correct
35 Correct 10 ms 9728 KB Output is correct
36 Correct 9 ms 9728 KB Output is correct
37 Correct 9 ms 9728 KB Output is correct
38 Correct 10 ms 9728 KB Output is correct
39 Correct 9 ms 9728 KB Output is correct
40 Correct 10 ms 9728 KB Output is correct
41 Correct 9 ms 9728 KB Output is correct
42 Correct 10 ms 9856 KB Output is correct
43 Correct 9 ms 9728 KB Output is correct
44 Correct 9 ms 9728 KB Output is correct
45 Correct 9 ms 9728 KB Output is correct
46 Correct 9 ms 9728 KB Output is correct
47 Correct 10 ms 9728 KB Output is correct
48 Correct 9 ms 9728 KB Output is correct
49 Correct 9 ms 9728 KB Output is correct
50 Correct 9 ms 9728 KB Output is correct
51 Correct 10 ms 9728 KB Output is correct
52 Correct 10 ms 9728 KB Output is correct
53 Correct 10 ms 9728 KB Output is correct
54 Correct 18 ms 10624 KB Output is correct
55 Correct 20 ms 10624 KB Output is correct
56 Correct 118 ms 17172 KB Output is correct
57 Correct 97 ms 16492 KB Output is correct
58 Correct 112 ms 18412 KB Output is correct
59 Correct 126 ms 18160 KB Output is correct
60 Correct 127 ms 18412 KB Output is correct
61 Correct 103 ms 16236 KB Output is correct
62 Correct 131 ms 18516 KB Output is correct
63 Correct 132 ms 18412 KB Output is correct
64 Correct 130 ms 18544 KB Output is correct
65 Correct 114 ms 18436 KB Output is correct
66 Correct 119 ms 18288 KB Output is correct
67 Correct 121 ms 18160 KB Output is correct
68 Correct 131 ms 18288 KB Output is correct
69 Correct 10 ms 9728 KB Output is correct
70 Correct 10 ms 9728 KB Output is correct
71 Correct 118 ms 18416 KB Output is correct
72 Correct 118 ms 18416 KB Output is correct
73 Correct 118 ms 18288 KB Output is correct
74 Correct 10 ms 9728 KB Output is correct
75 Correct 10 ms 9728 KB Output is correct
76 Correct 10 ms 9728 KB Output is correct
77 Correct 10 ms 9728 KB Output is correct
78 Correct 276 ms 31868 KB Output is correct
79 Correct 168 ms 19832 KB Output is correct
80 Correct 291 ms 33144 KB Output is correct
81 Correct 122 ms 18456 KB Output is correct
82 Correct 286 ms 33228 KB Output is correct
83 Correct 227 ms 25336 KB Output is correct
84 Correct 10 ms 9728 KB Output is correct
85 Correct 10 ms 9728 KB Output is correct
86 Correct 10 ms 9728 KB Output is correct
87 Correct 10 ms 9856 KB Output is correct
88 Correct 11 ms 9984 KB Output is correct
89 Correct 11 ms 9984 KB Output is correct
90 Correct 11 ms 9856 KB Output is correct
91 Correct 12 ms 9984 KB Output is correct
92 Correct 11 ms 9856 KB Output is correct
93 Correct 11 ms 9856 KB Output is correct
94 Correct 11 ms 9856 KB Output is correct
95 Correct 12 ms 9856 KB Output is correct
96 Correct 11 ms 9760 KB Output is correct
97 Correct 11 ms 9856 KB Output is correct
98 Correct 11 ms 9728 KB Output is correct
99 Correct 11 ms 9984 KB Output is correct
100 Correct 12 ms 9984 KB Output is correct
101 Correct 31 ms 12032 KB Output is correct
102 Correct 26 ms 11008 KB Output is correct
103 Correct 410 ms 33248 KB Output is correct
104 Correct 310 ms 31096 KB Output is correct
105 Correct 309 ms 26360 KB Output is correct
106 Correct 297 ms 33144 KB Output is correct
107 Correct 193 ms 20088 KB Output is correct
108 Correct 202 ms 19576 KB Output is correct
109 Correct 145 ms 18352 KB Output is correct
110 Correct 131 ms 18412 KB Output is correct
111 Correct 295 ms 31352 KB Output is correct
112 Correct 348 ms 29560 KB Output is correct
113 Correct 202 ms 20216 KB Output is correct
114 Correct 316 ms 33400 KB Output is correct
115 Correct 291 ms 33016 KB Output is correct