oj.uz

Submission #283121

# Submission time Handle Problem Language Result Execution time Memory
283121 2020-08-25T10:12:31 Z catalystgma Arranging Shoes (IOI19_shoes) C++14
100 / 100
 367 ms 274136 KB 
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pli pair<ll,int>
#define pil pair<int,ll>
#define fi first
#define se second
#define inf (INT_MAX/2-1)
#define infl (1LL<<60)
#define vi vector<int>
#define vl vector<ll>
#define pb push_back
#define sz(a) (int)(a).size()
#define all(a) begin(a),end(a)
#define y0 y5656
#define y1 y7878
#define y2 y9090
#define aaa system("pause");
#define dbg(x) cerr<<(#x)<<": "<<(x)<<'\n',aaa
#define dbga(x,n) cerr<<(#x)<<"[]: ";for(int _=0;_<n;_++)cerr<<x[_]<<' ';cerr<<'\n',aaa
#define dbgs(x) cerr<<(#x)<<"[stl]: ";for(auto _:x)cerr<<_<<' ';cerr<<'\n',aaa
#define dbgp(x) cerr<<(#x)<<": "<<x.fi<<' '<<x.se<<'\n',aaa
#define maxn 200000
#include "shoes.h"

using namespace std;

struct AIB {
  AIB () {}
  int yy[maxn+5];
  int lsb (int x) {
    return x&(-x);
  }
  void upd (int n, int x, int amt) {
    x++; ///index 0 -> 1
    for (; x <= n; x += lsb(x)) yy[x] += amt;
  }
  int qry (int x) {
    int ans = 0;
    x++; ///index 0 -> 1
    for (; x > 0; x -= lsb(x)) ans += yy[x];
    return ans;
  }
  int qryrg (int l, int r) {
    return qry(r) - qry(l-1);
  }
};

AIB aib;
stack<int> stkP[maxn+5], stkM[maxn+5];

ll count_swaps (vi v) {
  int n = sz(v);
  int i, j, z;
  ll ans = 0;
  for (i = n-1; i >= 0; i--)
    if (v[i] > 0) stkP[v[i]].push(i);
    else stkM[-v[i]].push(i);
  for (i = 0; i < n; i++) {
    if (aib.qryrg(i, i) == 1) continue; ///deja mutat
    if (v[i] < 0) {
      while (!stkP[-v[i]].empty() && stkP[-v[i]].top() < i) stkP[-v[i]].pop();
      if (!stkP[-v[i]].empty()) {
        z = stkP[-v[i]].top();
        ans += z-i-1 - aib.qryrg(i+1, z); ///in aib retii ce ai sters deja
        aib.upd(n, z, 1);
        stkP[-v[i]].pop();
      }
    } else {
      while (!stkM[v[i]].empty() && stkM[v[i]].top() < i) stkM[v[i]].pop();
      if (!stkM[v[i]].empty()) {
        z = stkM[v[i]].top();
        ans += z-i - aib.qryrg(i, z);
        aib.upd(n, z, 1);
        stkM[v[i]].pop();
      }
    }
  }
  return ans;
}

//int main () {
//  int n; cin >> n;
//  int i, j, z;
//  vi v(n*2);
//  for (i = 0; i < 2*n; i++) cin >> v[i];
//  cout << count_swaps(v);
//  return 0;
//}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:55:10: warning: unused variable 'j' [-Wunused-variable]
   55 |   int i, j, z;
      |          ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 213 ms 269560 KB Output is correct
2 Correct 207 ms 269560 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 213 ms 269560 KB Output is correct
2 Correct 207 ms 269560 KB Output is correct
3 Correct 211 ms 269560 KB Output is correct
4 Correct 198 ms 269560 KB Output is correct
5 Correct 197 ms 269560 KB Output is correct
6 Correct 198 ms 269624 KB Output is correct
7 Correct 196 ms 269560 KB Output is correct
8 Correct 196 ms 269560 KB Output is correct
9 Correct 198 ms 269560 KB Output is correct
10 Correct 211 ms 269560 KB Output is correct
11 Correct 199 ms 269560 KB Output is correct
12 Correct 198 ms 269560 KB Output is correct
13 Correct 200 ms 269816 KB Output is correct
14 Correct 206 ms 269560 KB Output is correct
15 Correct 197 ms 269660 KB Output is correct
16 Correct 197 ms 269560 KB Output is correct
17 Correct 199 ms 269688 KB Output is correct
18 Correct 209 ms 269560 KB Output is correct
19 Correct 216 ms 269560 KB Output is correct
20 Correct 202 ms 269560 KB Output is correct
21 Correct 209 ms 269560 KB Output is correct
22 Correct 201 ms 269560 KB Output is correct
23 Correct 215 ms 269560 KB Output is correct
24 Correct 201 ms 269688 KB Output is correct
25 Correct 200 ms 269560 KB Output is correct
26 Correct 204 ms 269560 KB Output is correct
27 Correct 199 ms 269688 KB Output is correct
28 Correct 199 ms 269560 KB Output is correct
29 Correct 198 ms 269564 KB Output is correct
30 Correct 199 ms 269564 KB Output is correct
31 Correct 199 ms 269560 KB Output is correct
32 Correct 200 ms 269560 KB Output is correct
33 Correct 205 ms 269560 KB Output is correct
34 Correct 200 ms 269560 KB Output is correct
35 Correct 199 ms 269584 KB Output is correct
36 Correct 202 ms 269560 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 213 ms 269560 KB Output is correct
2 Correct 207 ms 269560 KB Output is correct
3 Correct 206 ms 269560 KB Output is correct
4 Correct 206 ms 269560 KB Output is correct
5 Correct 198 ms 269688 KB Output is correct
6 Correct 199 ms 269564 KB Output is correct
7 Correct 206 ms 269560 KB Output is correct
8 Correct 201 ms 269560 KB Output is correct
9 Correct 200 ms 269560 KB Output is correct
10 Correct 201 ms 269688 KB Output is correct
11 Correct 202 ms 269664 KB Output is correct
12 Correct 199 ms 269560 KB Output is correct
13 Correct 205 ms 269560 KB Output is correct
14 Correct 202 ms 269560 KB Output is correct
15 Correct 197 ms 269560 KB Output is correct
16 Correct 220 ms 269560 KB Output is correct
17 Correct 205 ms 269560 KB Output is correct
18 Correct 226 ms 269688 KB Output is correct
19 Correct 217 ms 269688 KB Output is correct
20 Correct 229 ms 270072 KB Output is correct
21 Correct 216 ms 270072 KB Output is correct
22 Correct 256 ms 273044 KB Output is correct
23 Correct 256 ms 274040 KB Output is correct
24 Correct 258 ms 273808 KB Output is correct
25 Correct 248 ms 273400 KB Output is correct
26 Correct 256 ms 274136 KB Output is correct
27 Correct 248 ms 273912 KB Output is correct
28 Correct 254 ms 273656 KB Output is correct
29 Correct 257 ms 273656 KB Output is correct
30 Correct 258 ms 273656 KB Output is correct
31 Correct 258 ms 273936 KB Output is correct
32 Correct 253 ms 273656 KB Output is correct
33 Correct 251 ms 273400 KB Output is correct
34 Correct 255 ms 273656 KB Output is correct
35 Correct 200 ms 269560 KB Output is correct
36 Correct 202 ms 269560 KB Output is correct
37 Correct 252 ms 273632 KB Output is correct
38 Correct 249 ms 273656 KB Output is correct
39 Correct 259 ms 273656 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 204 ms 269560 KB Output is correct
2 Correct 202 ms 269560 KB Output is correct
3 Correct 206 ms 269560 KB Output is correct
4 Correct 213 ms 269704 KB Output is correct
5 Correct 290 ms 272248 KB Output is correct
6 Correct 270 ms 272760 KB Output is correct
7 Correct 290 ms 272760 KB Output is correct
8 Correct 250 ms 273656 KB Output is correct
9 Correct 286 ms 272888 KB Output is correct
10 Correct 283 ms 272760 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 213 ms 269560 KB Output is correct
2 Correct 207 ms 269560 KB Output is correct
3 Correct 211 ms 269560 KB Output is correct
4 Correct 198 ms 269560 KB Output is correct
5 Correct 197 ms 269560 KB Output is correct
6 Correct 198 ms 269624 KB Output is correct
7 Correct 196 ms 269560 KB Output is correct
8 Correct 196 ms 269560 KB Output is correct
9 Correct 198 ms 269560 KB Output is correct
10 Correct 211 ms 269560 KB Output is correct
11 Correct 199 ms 269560 KB Output is correct
12 Correct 198 ms 269560 KB Output is correct
13 Correct 200 ms 269816 KB Output is correct
14 Correct 206 ms 269560 KB Output is correct
15 Correct 197 ms 269660 KB Output is correct
16 Correct 197 ms 269560 KB Output is correct
17 Correct 199 ms 269688 KB Output is correct
18 Correct 209 ms 269560 KB Output is correct
19 Correct 216 ms 269560 KB Output is correct
20 Correct 202 ms 269560 KB Output is correct
21 Correct 209 ms 269560 KB Output is correct
22 Correct 201 ms 269560 KB Output is correct
23 Correct 215 ms 269560 KB Output is correct
24 Correct 201 ms 269688 KB Output is correct
25 Correct 200 ms 269560 KB Output is correct
26 Correct 204 ms 269560 KB Output is correct
27 Correct 199 ms 269688 KB Output is correct
28 Correct 199 ms 269560 KB Output is correct
29 Correct 198 ms 269564 KB Output is correct
30 Correct 199 ms 269564 KB Output is correct
31 Correct 199 ms 269560 KB Output is correct
32 Correct 200 ms 269560 KB Output is correct
33 Correct 205 ms 269560 KB Output is correct
34 Correct 200 ms 269560 KB Output is correct
35 Correct 199 ms 269584 KB Output is correct
36 Correct 202 ms 269560 KB Output is correct
37 Correct 201 ms 269688 KB Output is correct
38 Correct 200 ms 269560 KB Output is correct
39 Correct 201 ms 269688 KB Output is correct
40 Correct 199 ms 269692 KB Output is correct
41 Correct 200 ms 269560 KB Output is correct
42 Correct 199 ms 269688 KB Output is correct
43 Correct 205 ms 269688 KB Output is correct
44 Correct 198 ms 269688 KB Output is correct
45 Correct 202 ms 269560 KB Output is correct
46 Correct 209 ms 269688 KB Output is correct
47 Correct 203 ms 269596 KB Output is correct
48 Correct 203 ms 269804 KB Output is correct
49 Correct 202 ms 269560 KB Output is correct
50 Correct 209 ms 269688 KB Output is correct
51 Correct 215 ms 269688 KB Output is correct
52 Correct 210 ms 269560 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 213 ms 269560 KB Output is correct
2 Correct 207 ms 269560 KB Output is correct
3 Correct 211 ms 269560 KB Output is correct
4 Correct 198 ms 269560 KB Output is correct
5 Correct 197 ms 269560 KB Output is correct
6 Correct 198 ms 269624 KB Output is correct
7 Correct 196 ms 269560 KB Output is correct
8 Correct 196 ms 269560 KB Output is correct
9 Correct 198 ms 269560 KB Output is correct
10 Correct 211 ms 269560 KB Output is correct
11 Correct 199 ms 269560 KB Output is correct
12 Correct 198 ms 269560 KB Output is correct
13 Correct 200 ms 269816 KB Output is correct
14 Correct 206 ms 269560 KB Output is correct
15 Correct 197 ms 269660 KB Output is correct
16 Correct 197 ms 269560 KB Output is correct
17 Correct 199 ms 269688 KB Output is correct
18 Correct 209 ms 269560 KB Output is correct
19 Correct 216 ms 269560 KB Output is correct
20 Correct 202 ms 269560 KB Output is correct
21 Correct 209 ms 269560 KB Output is correct
22 Correct 201 ms 269560 KB Output is correct
23 Correct 215 ms 269560 KB Output is correct
24 Correct 201 ms 269688 KB Output is correct
25 Correct 200 ms 269560 KB Output is correct
26 Correct 204 ms 269560 KB Output is correct
27 Correct 199 ms 269688 KB Output is correct
28 Correct 199 ms 269560 KB Output is correct
29 Correct 198 ms 269564 KB Output is correct
30 Correct 199 ms 269564 KB Output is correct
31 Correct 199 ms 269560 KB Output is correct
32 Correct 200 ms 269560 KB Output is correct
33 Correct 205 ms 269560 KB Output is correct
34 Correct 200 ms 269560 KB Output is correct
35 Correct 199 ms 269584 KB Output is correct
36 Correct 202 ms 269560 KB Output is correct
37 Correct 206 ms 269560 KB Output is correct
38 Correct 206 ms 269560 KB Output is correct
39 Correct 198 ms 269688 KB Output is correct
40 Correct 199 ms 269564 KB Output is correct
41 Correct 206 ms 269560 KB Output is correct
42 Correct 201 ms 269560 KB Output is correct
43 Correct 200 ms 269560 KB Output is correct
44 Correct 201 ms 269688 KB Output is correct
45 Correct 202 ms 269664 KB Output is correct
46 Correct 199 ms 269560 KB Output is correct
47 Correct 205 ms 269560 KB Output is correct
48 Correct 202 ms 269560 KB Output is correct
49 Correct 197 ms 269560 KB Output is correct
50 Correct 220 ms 269560 KB Output is correct
51 Correct 205 ms 269560 KB Output is correct
52 Correct 226 ms 269688 KB Output is correct
53 Correct 217 ms 269688 KB Output is correct
54 Correct 229 ms 270072 KB Output is correct
55 Correct 216 ms 270072 KB Output is correct
56 Correct 256 ms 273044 KB Output is correct
57 Correct 256 ms 274040 KB Output is correct
58 Correct 258 ms 273808 KB Output is correct
59 Correct 248 ms 273400 KB Output is correct
60 Correct 256 ms 274136 KB Output is correct
61 Correct 248 ms 273912 KB Output is correct
62 Correct 254 ms 273656 KB Output is correct
63 Correct 257 ms 273656 KB Output is correct
64 Correct 258 ms 273656 KB Output is correct
65 Correct 258 ms 273936 KB Output is correct
66 Correct 253 ms 273656 KB Output is correct
67 Correct 251 ms 273400 KB Output is correct
68 Correct 255 ms 273656 KB Output is correct
69 Correct 200 ms 269560 KB Output is correct
70 Correct 202 ms 269560 KB Output is correct
71 Correct 252 ms 273632 KB Output is correct
72 Correct 249 ms 273656 KB Output is correct
73 Correct 259 ms 273656 KB Output is correct
74 Correct 204 ms 269560 KB Output is correct
75 Correct 202 ms 269560 KB Output is correct
76 Correct 206 ms 269560 KB Output is correct
77 Correct 213 ms 269704 KB Output is correct
78 Correct 290 ms 272248 KB Output is correct
79 Correct 270 ms 272760 KB Output is correct
80 Correct 290 ms 272760 KB Output is correct
81 Correct 250 ms 273656 KB Output is correct
82 Correct 286 ms 272888 KB Output is correct
83 Correct 283 ms 272760 KB Output is correct
84 Correct 201 ms 269688 KB Output is correct
85 Correct 200 ms 269560 KB Output is correct
86 Correct 201 ms 269688 KB Output is correct
87 Correct 199 ms 269692 KB Output is correct
88 Correct 200 ms 269560 KB Output is correct
89 Correct 199 ms 269688 KB Output is correct
90 Correct 205 ms 269688 KB Output is correct
91 Correct 198 ms 269688 KB Output is correct
92 Correct 202 ms 269560 KB Output is correct
93 Correct 209 ms 269688 KB Output is correct
94 Correct 203 ms 269596 KB Output is correct
95 Correct 203 ms 269804 KB Output is correct
96 Correct 202 ms 269560 KB Output is correct
97 Correct 209 ms 269688 KB Output is correct
98 Correct 215 ms 269688 KB Output is correct
99 Correct 210 ms 269560 KB Output is correct
100 Correct 210 ms 269688 KB Output is correct
101 Correct 222 ms 269944 KB Output is correct
102 Correct 214 ms 269968 KB Output is correct
103 Correct 316 ms 273272 KB Output is correct
104 Correct 297 ms 273352 KB Output is correct
105 Correct 315 ms 273228 KB Output is correct
106 Correct 327 ms 272788 KB Output is correct
107 Correct 309 ms 273144 KB Output is correct
108 Correct 367 ms 273200 KB Output is correct
109 Correct 256 ms 273656 KB Output is correct
110 Correct 340 ms 273656 KB Output is correct
111 Correct 303 ms 272760 KB Output is correct
112 Correct 312 ms 273272 KB Output is correct
113 Correct 274 ms 272888 KB Output is correct
114 Correct 294 ms 272760 KB Output is correct
115 Correct 288 ms 272852 KB Output is correct