oj.uz

Submission #278494

# Submission time Handle Problem Language Result Execution time Memory
278494 2020-08-21T13:08:08 Z ctziapo Arranging Shoes (IOI19_shoes) C++14
50 / 100
 155 ms 43640 KB 
#include "shoes.h"
#include <cstdio>
#include <cassert>
#include <iostream>
#include <vector>

using namespace std;

int seg[500000];

void update(int s,int e,int u,int ind){

   if(u<s || u>e){
    return;
   }

   if(s==e && s==u){
        seg[ind]=1;
        return;
   }

   int mid=(s+e)/2;
   update(s,mid,u,ind*2);
   update(mid+1,e,u,ind*2+1);

   seg[ind]=seg[ind*2]+seg[ind*2+1];
}

int query(int s,int e , int qs,int qe,int ind){

    if(qs<=s && e<=qe){
        return seg[ind];
    }
    if(qs>e || qe<s){
        return 0;
    }

   int mid=(s+e)/2;
   int p1=query(s,mid,qs,qe,ind*2);
   int p2=query(mid+1,e,qs,qe,ind*2+1);

   return p1+p2;

}
long long count_swaps(std::vector<int> s) {

    vector < int > row;
    vector < int > row2;
    vector < vector < int > > l(200000,row);
    vector < vector < int > > r(200000,row2);

    int li[200000+1]={};
    int ri[200000+1]={};

    for(int i=0;i<s.size();i++){
        if(s[i]>0){
            r[s[i]].push_back(i);
        }
        else
            l[-s[i]].push_back(i);
    }

	int ans=0;

	/// n log n
    int v[200000]={};
	for(int i=0;i<s.size();i++){
        int cou=0;
        if(v[i]==1){
            continue;
        }

        int f=-s[i];
        if(f>0){
        li[f]++;
        int start=i;
        int e=r[f][ri[f]];
        ri[f]++;
        int q=query(1,s.size(),start+1,e+1,1);

        v[start]=1;
        v[e]=1;

        update(1,s.size(),start+1,1);
        update(1,s.size(),e+1,1);
       // cout<<q<<endl;
        cou=cou + e-start-1-q;
        }
        else{
            cou=1;
             ri[-f]++;
             int start=i;
             int e=l[-f][li[-f]];
             li[-f]++;

            int q=query(1,s.size(),start+1,e+1,1);

             v[start]=1;
        v[e]=1;

        update(1,s.size(),start+1,1);
        update(1,s.size(),e+1,1);
         //   cout<<q<<endl;
             cou=cou + e-start-1-q;
        }
        ans+=cou;
	}

	return ans;


}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:55:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~
shoes.cpp:67:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |  for(int i=0;i<s.size();i++){
      |              ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 9 ms 12032 KB Output is correct
5 Correct 9 ms 12032 KB Output is correct
6 Correct 8 ms 12032 KB Output is correct
7 Correct 9 ms 12032 KB Output is correct
8 Correct 9 ms 12032 KB Output is correct
9 Correct 8 ms 12032 KB Output is correct
10 Correct 9 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 8 ms 12032 KB Output is correct
13 Correct 8 ms 12032 KB Output is correct
14 Correct 9 ms 12032 KB Output is correct
15 Correct 10 ms 12032 KB Output is correct
16 Correct 8 ms 12032 KB Output is correct
17 Correct 8 ms 12032 KB Output is correct
18 Correct 8 ms 12032 KB Output is correct
19 Correct 9 ms 12032 KB Output is correct
20 Correct 9 ms 12032 KB Output is correct
21 Correct 10 ms 12032 KB Output is correct
22 Correct 9 ms 12032 KB Output is correct
23 Correct 10 ms 12032 KB Output is correct
24 Correct 9 ms 12032 KB Output is correct
25 Correct 8 ms 12032 KB Output is correct
26 Correct 12 ms 12020 KB Output is correct
27 Correct 9 ms 12032 KB Output is correct
28 Correct 9 ms 12032 KB Output is correct
29 Correct 9 ms 12032 KB Output is correct
30 Correct 9 ms 12032 KB Output is correct
31 Correct 8 ms 12032 KB Output is correct
32 Correct 9 ms 12032 KB Output is correct
33 Correct 9 ms 12032 KB Output is correct
34 Correct 8 ms 12032 KB Output is correct
35 Correct 8 ms 12032 KB Output is correct
36 Correct 8 ms 12032 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 9 ms 12032 KB Output is correct
4 Correct 8 ms 12032 KB Output is correct
5 Correct 8 ms 12032 KB Output is correct
6 Correct 9 ms 12032 KB Output is correct
7 Correct 9 ms 12032 KB Output is correct
8 Correct 8 ms 12032 KB Output is correct
9 Correct 8 ms 12032 KB Output is correct
10 Correct 9 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 8 ms 12032 KB Output is correct
13 Correct 9 ms 12032 KB Output is correct
14 Correct 8 ms 12032 KB Output is correct
15 Correct 10 ms 12032 KB Output is correct
16 Correct 10 ms 12032 KB Output is correct
17 Correct 9 ms 12160 KB Output is correct
18 Correct 9 ms 12160 KB Output is correct
19 Correct 10 ms 12032 KB Output is correct
20 Correct 23 ms 12576 KB Output is correct
21 Correct 24 ms 12672 KB Output is correct
22 Runtime error 136 ms 33224 KB Execution killed with signal 11
23 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 9 ms 12032 KB Output is correct
4 Correct 8 ms 12032 KB Output is correct
5 Runtime error 155 ms 43640 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 9 ms 12032 KB Output is correct
5 Correct 9 ms 12032 KB Output is correct
6 Correct 8 ms 12032 KB Output is correct
7 Correct 9 ms 12032 KB Output is correct
8 Correct 9 ms 12032 KB Output is correct
9 Correct 8 ms 12032 KB Output is correct
10 Correct 9 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 8 ms 12032 KB Output is correct
13 Correct 8 ms 12032 KB Output is correct
14 Correct 9 ms 12032 KB Output is correct
15 Correct 10 ms 12032 KB Output is correct
16 Correct 8 ms 12032 KB Output is correct
17 Correct 8 ms 12032 KB Output is correct
18 Correct 8 ms 12032 KB Output is correct
19 Correct 9 ms 12032 KB Output is correct
20 Correct 9 ms 12032 KB Output is correct
21 Correct 10 ms 12032 KB Output is correct
22 Correct 9 ms 12032 KB Output is correct
23 Correct 10 ms 12032 KB Output is correct
24 Correct 9 ms 12032 KB Output is correct
25 Correct 8 ms 12032 KB Output is correct
26 Correct 12 ms 12020 KB Output is correct
27 Correct 9 ms 12032 KB Output is correct
28 Correct 9 ms 12032 KB Output is correct
29 Correct 9 ms 12032 KB Output is correct
30 Correct 9 ms 12032 KB Output is correct
31 Correct 8 ms 12032 KB Output is correct
32 Correct 9 ms 12032 KB Output is correct
33 Correct 9 ms 12032 KB Output is correct
34 Correct 8 ms 12032 KB Output is correct
35 Correct 8 ms 12032 KB Output is correct
36 Correct 8 ms 12032 KB Output is correct
37 Correct 8 ms 12032 KB Output is correct
38 Correct 8 ms 12032 KB Output is correct
39 Correct 8 ms 12032 KB Output is correct
40 Correct 9 ms 12032 KB Output is correct
41 Correct 9 ms 12160 KB Output is correct
42 Correct 10 ms 12160 KB Output is correct
43 Correct 11 ms 12160 KB Output is correct
44 Correct 12 ms 12160 KB Output is correct
45 Correct 12 ms 12160 KB Output is correct
46 Correct 10 ms 12160 KB Output is correct
47 Correct 11 ms 12160 KB Output is correct
48 Correct 9 ms 12160 KB Output is correct
49 Correct 11 ms 12160 KB Output is correct
50 Correct 11 ms 12032 KB Output is correct
51 Correct 9 ms 12160 KB Output is correct
52 Correct 13 ms 12160 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 12032 KB Output is correct
2 Correct 8 ms 12032 KB Output is correct
3 Correct 8 ms 12032 KB Output is correct
4 Correct 9 ms 12032 KB Output is correct
5 Correct 9 ms 12032 KB Output is correct
6 Correct 8 ms 12032 KB Output is correct
7 Correct 9 ms 12032 KB Output is correct
8 Correct 9 ms 12032 KB Output is correct
9 Correct 8 ms 12032 KB Output is correct
10 Correct 9 ms 12032 KB Output is correct
11 Correct 8 ms 12032 KB Output is correct
12 Correct 8 ms 12032 KB Output is correct
13 Correct 8 ms 12032 KB Output is correct
14 Correct 9 ms 12032 KB Output is correct
15 Correct 10 ms 12032 KB Output is correct
16 Correct 8 ms 12032 KB Output is correct
17 Correct 8 ms 12032 KB Output is correct
18 Correct 8 ms 12032 KB Output is correct
19 Correct 9 ms 12032 KB Output is correct
20 Correct 9 ms 12032 KB Output is correct
21 Correct 10 ms 12032 KB Output is correct
22 Correct 9 ms 12032 KB Output is correct
23 Correct 10 ms 12032 KB Output is correct
24 Correct 9 ms 12032 KB Output is correct
25 Correct 8 ms 12032 KB Output is correct
26 Correct 12 ms 12020 KB Output is correct
27 Correct 9 ms 12032 KB Output is correct
28 Correct 9 ms 12032 KB Output is correct
29 Correct 9 ms 12032 KB Output is correct
30 Correct 9 ms 12032 KB Output is correct
31 Correct 8 ms 12032 KB Output is correct
32 Correct 9 ms 12032 KB Output is correct
33 Correct 9 ms 12032 KB Output is correct
34 Correct 8 ms 12032 KB Output is correct
35 Correct 8 ms 12032 KB Output is correct
36 Correct 8 ms 12032 KB Output is correct
37 Correct 9 ms 12032 KB Output is correct
38 Correct 8 ms 12032 KB Output is correct
39 Correct 8 ms 12032 KB Output is correct
40 Correct 9 ms 12032 KB Output is correct
41 Correct 9 ms 12032 KB Output is correct
42 Correct 8 ms 12032 KB Output is correct
43 Correct 8 ms 12032 KB Output is correct
44 Correct 9 ms 12032 KB Output is correct
45 Correct 8 ms 12032 KB Output is correct
46 Correct 8 ms 12032 KB Output is correct
47 Correct 9 ms 12032 KB Output is correct
48 Correct 8 ms 12032 KB Output is correct
49 Correct 10 ms 12032 KB Output is correct
50 Correct 10 ms 12032 KB Output is correct
51 Correct 9 ms 12160 KB Output is correct
52 Correct 9 ms 12160 KB Output is correct
53 Correct 10 ms 12032 KB Output is correct
54 Correct 23 ms 12576 KB Output is correct
55 Correct 24 ms 12672 KB Output is correct
56 Runtime error 136 ms 33224 KB Execution killed with signal 11
57 Halted 0 ms 0 KB -