oj.uz

Submission #258865

# Submission time Handle Problem Language Result Execution time Memory
258865 2020-08-06T16:05:18 Z MarWarPL Arranging Shoes (IOI19_shoes) C++17
100 / 100
 149 ms 18424 KB 
#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
#define FOR(i,x,y) for(int i=(int)(x);i<(int)(y);++i)
#define FORE(i,x,y) for(int i=(int)(x);i<=(int)(y);++i)
#define FORD(i,x,y) for(int i=(int)(x);i>=(int)(y);--i)
#define PB push_back
#define ST first
#define ND second
typedef long long ll;
typedef pair<int,int> pii;
const int MAXT=(1<<19)+7;
const int MAXN=2e5+7;

int n;
int t[MAXT];
int lazy[MAXT];
bool vis[MAXN];
vector<int> pos[MAXN];
void Bld(int v,int vl,int vr){
    if(vl==vr){
        t[v]=vl;
    }else{
        int vm=(vl+vr)/2;
        Bld(v*2,vl,vm);
        Bld(v*2+1,vm+1,vr);
    }
}
void Push(int v){
    t[v*2]+=lazy[v];
    lazy[v*2]+=lazy[v];
    t[v*2+1]+=lazy[v];
    lazy[v*2+1]+=lazy[v];
    lazy[v]=0;
}
void Add(int v,int vl,int vr,int l,int r,int val){
    if(l>r)return;
    if(l==vl&&r==vr){
        t[v]+=val;
        lazy[v]+=val;
    }else{
        Push(v);
        int vm=(vl+vr)/2;
        Add(v*2,vl,vm,l,min(vm,r),val);
        Add(v*2+1,vm+1,vr,max(l,vm+1),vr,val);
    }
}
int Qry(int v,int vl,int vr,int vq){
    if(vl==vr){
        return t[v];
    }else{
        int vm=(vl+vr)/2;
        Push(v);
        if(vq<=vm)return Qry(v*2,vl,vm,vq);
        else return Qry(v*2+1,vm+1,vr,vq);
    }
}
long long count_swaps(std::vector<int> s) {
    n=s.size();
    FORD(i,n-1,0){
        if(s[i]>0)pos[s[i]*2].PB(i);
        else pos[s[i]*(-2)-1].PB(i);
    }
    ll ans=0;
    Bld(1,0,n-1);
    FOR(i,0,n){
        int x,y;
        if(s[i]>0)x=s[i]*2,y=x-1;
        else x=s[i]*(-2)-1,y=x+1;
        if(pos[x].empty()||pos[x].back()!=i)continue;
        int xpos=Qry(1,0,n-1,pos[x].back());
        int ypos=Qry(1,0,n-1,pos[y].back());
        if(x&1){
            ans+=ypos-xpos-1;
        }else{
            ans+=ypos-xpos;
        }
        Add(1,0,n-1,pos[y].back(),n-1,-1);
        pos[x].pop_back();
        pos[y].pop_back();
    }
	return ans;
}
/*
2
2 1 -1 -2

3
-2 2 2 -2 -2 2

3
3 -1 2 1 -3 -2

4
3 -1 2 1 -3 -4 -2 4

5
1 2 3 4 5 -5 -4 -3 -2 -1

3
1 2 3 -3 -2 -1

1
-1 1
*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 5052 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 5052 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 3 ms 4992 KB Output is correct
9 Correct 3 ms 4992 KB Output is correct
10 Correct 3 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 3 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 3 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 3 ms 4992 KB Output is correct
18 Correct 3 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 3 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 3 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 3 ms 4992 KB Output is correct
25 Correct 5 ms 4992 KB Output is correct
26 Correct 3 ms 4992 KB Output is correct
27 Correct 3 ms 4992 KB Output is correct
28 Correct 3 ms 4992 KB Output is correct
29 Correct 3 ms 4992 KB Output is correct
30 Correct 3 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 3 ms 4992 KB Output is correct
33 Correct 3 ms 4992 KB Output is correct
34 Correct 3 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 3 ms 4992 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 5052 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 3 ms 4992 KB Output is correct
8 Correct 3 ms 4992 KB Output is correct
9 Correct 3 ms 4992 KB Output is correct
10 Correct 3 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 3 ms 4992 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 3 ms 4992 KB Output is correct
15 Correct 3 ms 4992 KB Output is correct
16 Correct 3 ms 4992 KB Output is correct
17 Correct 4 ms 4992 KB Output is correct
18 Correct 4 ms 5120 KB Output is correct
19 Correct 4 ms 5096 KB Output is correct
20 Correct 10 ms 6016 KB Output is correct
21 Correct 10 ms 5888 KB Output is correct
22 Correct 76 ms 12928 KB Output is correct
23 Correct 69 ms 12908 KB Output is correct
24 Correct 72 ms 12848 KB Output is correct
25 Correct 64 ms 12656 KB Output is correct
26 Correct 72 ms 12908 KB Output is correct
27 Correct 72 ms 12780 KB Output is correct
28 Correct 69 ms 12912 KB Output is correct
29 Correct 67 ms 12912 KB Output is correct
30 Correct 71 ms 12912 KB Output is correct
31 Correct 79 ms 12932 KB Output is correct
32 Correct 67 ms 12912 KB Output is correct
33 Correct 69 ms 12780 KB Output is correct
34 Correct 70 ms 12912 KB Output is correct
35 Correct 3 ms 4992 KB Output is correct
36 Correct 3 ms 4992 KB Output is correct
37 Correct 70 ms 12912 KB Output is correct
38 Correct 70 ms 12912 KB Output is correct
39 Correct 71 ms 12912 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 4 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 111 ms 18168 KB Output is correct
6 Correct 91 ms 13432 KB Output is correct
7 Correct 122 ms 18296 KB Output is correct
8 Correct 68 ms 12848 KB Output is correct
9 Correct 122 ms 18296 KB Output is correct
10 Correct 120 ms 15096 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 5052 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 3 ms 4992 KB Output is correct
9 Correct 3 ms 4992 KB Output is correct
10 Correct 3 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 3 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 3 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 3 ms 4992 KB Output is correct
18 Correct 3 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 3 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 3 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 3 ms 4992 KB Output is correct
25 Correct 5 ms 4992 KB Output is correct
26 Correct 3 ms 4992 KB Output is correct
27 Correct 3 ms 4992 KB Output is correct
28 Correct 3 ms 4992 KB Output is correct
29 Correct 3 ms 4992 KB Output is correct
30 Correct 3 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 3 ms 4992 KB Output is correct
33 Correct 3 ms 4992 KB Output is correct
34 Correct 3 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 3 ms 4992 KB Output is correct
37 Correct 4 ms 4992 KB Output is correct
38 Correct 5 ms 4992 KB Output is correct
39 Correct 3 ms 4992 KB Output is correct
40 Correct 3 ms 5120 KB Output is correct
41 Correct 4 ms 5120 KB Output is correct
42 Correct 4 ms 5120 KB Output is correct
43 Correct 4 ms 5120 KB Output is correct
44 Correct 4 ms 5120 KB Output is correct
45 Correct 4 ms 5120 KB Output is correct
46 Correct 4 ms 5120 KB Output is correct
47 Correct 4 ms 5120 KB Output is correct
48 Correct 4 ms 5120 KB Output is correct
49 Correct 4 ms 5120 KB Output is correct
50 Correct 4 ms 5120 KB Output is correct
51 Correct 4 ms 5120 KB Output is correct
52 Correct 4 ms 5120 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 4 ms 5052 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 3 ms 4992 KB Output is correct
7 Correct 4 ms 4992 KB Output is correct
8 Correct 3 ms 4992 KB Output is correct
9 Correct 3 ms 4992 KB Output is correct
10 Correct 3 ms 4992 KB Output is correct
11 Correct 3 ms 4992 KB Output is correct
12 Correct 3 ms 4992 KB Output is correct
13 Correct 3 ms 4992 KB Output is correct
14 Correct 4 ms 4992 KB Output is correct
15 Correct 3 ms 4992 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 3 ms 4992 KB Output is correct
18 Correct 3 ms 4992 KB Output is correct
19 Correct 3 ms 4992 KB Output is correct
20 Correct 3 ms 4992 KB Output is correct
21 Correct 4 ms 4992 KB Output is correct
22 Correct 3 ms 4992 KB Output is correct
23 Correct 4 ms 4992 KB Output is correct
24 Correct 3 ms 4992 KB Output is correct
25 Correct 5 ms 4992 KB Output is correct
26 Correct 3 ms 4992 KB Output is correct
27 Correct 3 ms 4992 KB Output is correct
28 Correct 3 ms 4992 KB Output is correct
29 Correct 3 ms 4992 KB Output is correct
30 Correct 3 ms 4992 KB Output is correct
31 Correct 4 ms 4992 KB Output is correct
32 Correct 3 ms 4992 KB Output is correct
33 Correct 3 ms 4992 KB Output is correct
34 Correct 3 ms 4992 KB Output is correct
35 Correct 4 ms 4992 KB Output is correct
36 Correct 3 ms 4992 KB Output is correct
37 Correct 3 ms 4992 KB Output is correct
38 Correct 3 ms 4992 KB Output is correct
39 Correct 3 ms 4992 KB Output is correct
40 Correct 3 ms 4992 KB Output is correct
41 Correct 3 ms 4992 KB Output is correct
42 Correct 3 ms 4992 KB Output is correct
43 Correct 3 ms 4992 KB Output is correct
44 Correct 3 ms 4992 KB Output is correct
45 Correct 3 ms 4992 KB Output is correct
46 Correct 3 ms 4992 KB Output is correct
47 Correct 4 ms 4992 KB Output is correct
48 Correct 3 ms 4992 KB Output is correct
49 Correct 3 ms 4992 KB Output is correct
50 Correct 3 ms 4992 KB Output is correct
51 Correct 4 ms 4992 KB Output is correct
52 Correct 4 ms 5120 KB Output is correct
53 Correct 4 ms 5096 KB Output is correct
54 Correct 10 ms 6016 KB Output is correct
55 Correct 10 ms 5888 KB Output is correct
56 Correct 76 ms 12928 KB Output is correct
57 Correct 69 ms 12908 KB Output is correct
58 Correct 72 ms 12848 KB Output is correct
59 Correct 64 ms 12656 KB Output is correct
60 Correct 72 ms 12908 KB Output is correct
61 Correct 72 ms 12780 KB Output is correct
62 Correct 69 ms 12912 KB Output is correct
63 Correct 67 ms 12912 KB Output is correct
64 Correct 71 ms 12912 KB Output is correct
65 Correct 79 ms 12932 KB Output is correct
66 Correct 67 ms 12912 KB Output is correct
67 Correct 69 ms 12780 KB Output is correct
68 Correct 70 ms 12912 KB Output is correct
69 Correct 3 ms 4992 KB Output is correct
70 Correct 3 ms 4992 KB Output is correct
71 Correct 70 ms 12912 KB Output is correct
72 Correct 70 ms 12912 KB Output is correct
73 Correct 71 ms 12912 KB Output is correct
74 Correct 3 ms 4992 KB Output is correct
75 Correct 4 ms 4992 KB Output is correct
76 Correct 3 ms 4992 KB Output is correct
77 Correct 3 ms 4992 KB Output is correct
78 Correct 111 ms 18168 KB Output is correct
79 Correct 91 ms 13432 KB Output is correct
80 Correct 122 ms 18296 KB Output is correct
81 Correct 68 ms 12848 KB Output is correct
82 Correct 122 ms 18296 KB Output is correct
83 Correct 120 ms 15096 KB Output is correct
84 Correct 4 ms 4992 KB Output is correct
85 Correct 5 ms 4992 KB Output is correct
86 Correct 3 ms 4992 KB Output is correct
87 Correct 3 ms 5120 KB Output is correct
88 Correct 4 ms 5120 KB Output is correct
89 Correct 4 ms 5120 KB Output is correct
90 Correct 4 ms 5120 KB Output is correct
91 Correct 4 ms 5120 KB Output is correct
92 Correct 4 ms 5120 KB Output is correct
93 Correct 4 ms 5120 KB Output is correct
94 Correct 4 ms 5120 KB Output is correct
95 Correct 4 ms 5120 KB Output is correct
96 Correct 4 ms 5120 KB Output is correct
97 Correct 4 ms 5120 KB Output is correct
98 Correct 4 ms 5120 KB Output is correct
99 Correct 4 ms 5120 KB Output is correct
100 Correct 4 ms 5120 KB Output is correct
101 Correct 12 ms 6400 KB Output is correct
102 Correct 12 ms 6016 KB Output is correct
103 Correct 145 ms 18168 KB Output is correct
104 Correct 118 ms 18168 KB Output is correct
105 Correct 137 ms 15480 KB Output is correct
106 Correct 112 ms 18424 KB Output is correct
107 Correct 95 ms 13560 KB Output is correct
108 Correct 97 ms 13944 KB Output is correct
109 Correct 71 ms 12976 KB Output is correct
110 Correct 70 ms 12912 KB Output is correct
111 Correct 114 ms 17528 KB Output is correct
112 Correct 149 ms 16888 KB Output is correct
113 Correct 117 ms 13520 KB Output is correct
114 Correct 112 ms 18168 KB Output is correct
115 Correct 110 ms 18168 KB Output is correct