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Submission #173005

# Submission time Handle Problem Language Result Execution time Memory
173005 2020-01-03T00:43:58 Z FieryPhoenix Arranging Shoes (IOI19_shoes) C++17
100 / 100
 496 ms 32452 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstdio>
#include <map>
#include <queue>
#include <set>
#include <iomanip>
#include <deque>
#include <cassert>
#include <ctime>
#include <cstring>
#include <cstdlib>
#include <chrono>
#include <ctime>
#include <random>
#include <stack>
#include <unordered_set>
#include <unordered_map>
#include <iterator>
#include <climits>
using namespace std;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef long long ll;
typedef long double ld;
#define INF 2001001001
#define MOD 1000000007

int N;
map<int,set<int>>mp;
int tree[200001];
bool dead[200001];

void update(int pos, int val){
  while (pos<=N*2){
    tree[pos]+=val;
    pos+=(pos&(-pos));
  }
}

int query(int pos){
  int ans=0;
  while (pos>=1){
    ans+=tree[pos];
    pos-=(pos&(-pos));
  }
  return ans;
}

ll count_swaps(vector<int>S){
  N=(int)S.size()/2;
  for (int i=1;i<=N*2;i++){
    mp[S[i-1]].insert(i);
    update(i,1);
  }
  ll ans=0;
  for (int i=1;i<=N*2;i++){
    if (dead[i])
      continue;
    int target=(*mp[S[i-1]*(-1)].begin());
    mp[S[i-1]*(-1)].erase(*mp[S[i-1]*(-1)].begin());
    mp[S[i-1]].erase(i);
    ans+=query(target)-query(i-1)-2;
    if (S[i-1]>0)
      ans++;
    dead[i]=true;
    update(i,-1);
    dead[target]=true;
    update(target,-1);
  }
  return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct
2 Correct 2 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 248 KB Output is correct
6 Correct 2 ms 252 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 380 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 380 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 3 ms 504 KB Output is correct
20 Correct 10 ms 1656 KB Output is correct
21 Correct 10 ms 1656 KB Output is correct
22 Correct 96 ms 13532 KB Output is correct
23 Correct 114 ms 13488 KB Output is correct
24 Correct 105 ms 13508 KB Output is correct
25 Correct 109 ms 13368 KB Output is correct
26 Correct 99 ms 13624 KB Output is correct
27 Correct 112 ms 13404 KB Output is correct
28 Correct 112 ms 13628 KB Output is correct
29 Correct 113 ms 13560 KB Output is correct
30 Correct 111 ms 13524 KB Output is correct
31 Correct 98 ms 13560 KB Output is correct
32 Correct 112 ms 13564 KB Output is correct
33 Correct 109 ms 13308 KB Output is correct
34 Correct 111 ms 13560 KB Output is correct
35 Correct 2 ms 380 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 113 ms 13560 KB Output is correct
38 Correct 113 ms 13564 KB Output is correct
39 Correct 112 ms 13560 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 371 ms 31224 KB Output is correct
6 Correct 260 ms 13916 KB Output is correct
7 Correct 374 ms 32276 KB Output is correct
8 Correct 96 ms 13560 KB Output is correct
9 Correct 369 ms 32248 KB Output is correct
10 Correct 306 ms 22876 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 248 KB Output is correct
6 Correct 2 ms 252 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 380 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 380 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 632 KB Output is correct
42 Correct 3 ms 632 KB Output is correct
43 Correct 4 ms 632 KB Output is correct
44 Correct 2 ms 632 KB Output is correct
45 Correct 4 ms 632 KB Output is correct
46 Correct 3 ms 504 KB Output is correct
47 Correct 3 ms 504 KB Output is correct
48 Correct 3 ms 504 KB Output is correct
49 Correct 3 ms 508 KB Output is correct
50 Correct 3 ms 504 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 3 ms 632 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 248 KB Output is correct
6 Correct 2 ms 252 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 380 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 380 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 256 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 376 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 380 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 3 ms 504 KB Output is correct
53 Correct 3 ms 504 KB Output is correct
54 Correct 10 ms 1656 KB Output is correct
55 Correct 10 ms 1656 KB Output is correct
56 Correct 96 ms 13532 KB Output is correct
57 Correct 114 ms 13488 KB Output is correct
58 Correct 105 ms 13508 KB Output is correct
59 Correct 109 ms 13368 KB Output is correct
60 Correct 99 ms 13624 KB Output is correct
61 Correct 112 ms 13404 KB Output is correct
62 Correct 112 ms 13628 KB Output is correct
63 Correct 113 ms 13560 KB Output is correct
64 Correct 111 ms 13524 KB Output is correct
65 Correct 98 ms 13560 KB Output is correct
66 Correct 112 ms 13564 KB Output is correct
67 Correct 109 ms 13308 KB Output is correct
68 Correct 111 ms 13560 KB Output is correct
69 Correct 2 ms 380 KB Output is correct
70 Correct 2 ms 376 KB Output is correct
71 Correct 113 ms 13560 KB Output is correct
72 Correct 113 ms 13564 KB Output is correct
73 Correct 112 ms 13560 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 256 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 371 ms 31224 KB Output is correct
79 Correct 260 ms 13916 KB Output is correct
80 Correct 374 ms 32276 KB Output is correct
81 Correct 96 ms 13560 KB Output is correct
82 Correct 369 ms 32248 KB Output is correct
83 Correct 306 ms 22876 KB Output is correct
84 Correct 2 ms 376 KB Output is correct
85 Correct 2 ms 376 KB Output is correct
86 Correct 2 ms 376 KB Output is correct
87 Correct 2 ms 376 KB Output is correct
88 Correct 3 ms 632 KB Output is correct
89 Correct 3 ms 632 KB Output is correct
90 Correct 4 ms 632 KB Output is correct
91 Correct 2 ms 632 KB Output is correct
92 Correct 4 ms 632 KB Output is correct
93 Correct 3 ms 504 KB Output is correct
94 Correct 3 ms 504 KB Output is correct
95 Correct 3 ms 504 KB Output is correct
96 Correct 3 ms 508 KB Output is correct
97 Correct 3 ms 504 KB Output is correct
98 Correct 3 ms 376 KB Output is correct
99 Correct 3 ms 632 KB Output is correct
100 Correct 4 ms 632 KB Output is correct
101 Correct 23 ms 3320 KB Output is correct
102 Correct 20 ms 2040 KB Output is correct
103 Correct 452 ms 32356 KB Output is correct
104 Correct 410 ms 32248 KB Output is correct
105 Correct 496 ms 24472 KB Output is correct
106 Correct 413 ms 32376 KB Output is correct
107 Correct 280 ms 15864 KB Output is correct
108 Correct 348 ms 17768 KB Output is correct
109 Correct 100 ms 13632 KB Output is correct
110 Correct 110 ms 13560 KB Output is correct
111 Correct 370 ms 30212 KB Output is correct
112 Correct 400 ms 28152 KB Output is correct
113 Correct 280 ms 15964 KB Output is correct
114 Correct 366 ms 32372 KB Output is correct
115 Correct 442 ms 32452 KB Output is correct