oj.uz

Submission #154132

# Submission time Handle Problem Language Result Execution time Memory
154132 2019-09-18T13:41:41 Z 79brue Arranging Shoes (IOI19_shoes) C++14
100 / 100
 285 ms 141576 KB 
#include <bits/stdc++.h>
#include "shoes.h"

using namespace std;
typedef long long ll;

int n;
int arr[200002];
int match[200002];
queue<int> matchIdx[200002];
bool chk[200002];

struct fenwick{
    int size;
    ll tree[1000002];

    fenwick(){}
    void reset(int x){
        size = x;
        fill(tree, tree+x+1, 0LL);
    }

    ll getSum(int i){
        ll ans = 0;
        while(i>0){
            ans += tree[i];
            i -= (i&-i);
        }
        return ans;
    }

    ll getSum(int l, int r){
        return getSum(r) - getSum(l-1);
    }

    void update(int i, ll val){
        while(i<=size){
            tree[i] += val;
            i += (i&-i);
        }
    }
} tree;

ll count_swaps(vector<int> _arr) {
    ll ans=0;
    n = (int)_arr.size();
    for(int i=1; i<=n; i++) arr[i] = _arr[i-1];

    tree.reset(n);

    for(int i=1; i<=n; i++){
        tree.update(i, 1);

        if(matchIdx[abs(arr[i])].empty()) matchIdx[abs(arr[i])].push(i);
        else{
            int tmp = matchIdx[abs(arr[i])].front();
            if(arr[tmp] != arr[i]){
                match[tmp] = i;
                match[i] = tmp;
                matchIdx[abs(arr[i])].pop();
            }
            else{
                matchIdx[abs(arr[i])].push(i);
            }
        }
    }

    for(int i=1; i<=n; i++){
        if(chk[match[i]]) continue;
        chk[i] = 1;
        int tmp = match[i];
        ans += tree.getSum(i, tmp) - 2;
        if(arr[i] > 0) ans++;
        tree.update(i, -1);
        tree.update(tmp, -1);
    }

    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 134904 KB Output is correct
2 Correct 134 ms 135032 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 134904 KB Output is correct
2 Correct 134 ms 135032 KB Output is correct
3 Correct 136 ms 135012 KB Output is correct
4 Correct 135 ms 134904 KB Output is correct
5 Correct 136 ms 135016 KB Output is correct
6 Correct 144 ms 134952 KB Output is correct
7 Correct 149 ms 134992 KB Output is correct
8 Correct 138 ms 134904 KB Output is correct
9 Correct 134 ms 134904 KB Output is correct
10 Correct 135 ms 134904 KB Output is correct
11 Correct 137 ms 135004 KB Output is correct
12 Correct 135 ms 135088 KB Output is correct
13 Correct 136 ms 134920 KB Output is correct
14 Correct 137 ms 134964 KB Output is correct
15 Correct 136 ms 135008 KB Output is correct
16 Correct 135 ms 135104 KB Output is correct
17 Correct 156 ms 134916 KB Output is correct
18 Correct 135 ms 134904 KB Output is correct
19 Correct 136 ms 134940 KB Output is correct
20 Correct 135 ms 134904 KB Output is correct
21 Correct 142 ms 135160 KB Output is correct
22 Correct 137 ms 134904 KB Output is correct
23 Correct 136 ms 135032 KB Output is correct
24 Correct 139 ms 135120 KB Output is correct
25 Correct 137 ms 134904 KB Output is correct
26 Correct 135 ms 134940 KB Output is correct
27 Correct 140 ms 135016 KB Output is correct
28 Correct 139 ms 134904 KB Output is correct
29 Correct 136 ms 135072 KB Output is correct
30 Correct 136 ms 135012 KB Output is correct
31 Correct 135 ms 135032 KB Output is correct
32 Correct 135 ms 135032 KB Output is correct
33 Correct 138 ms 134904 KB Output is correct
34 Correct 138 ms 134904 KB Output is correct
35 Correct 135 ms 135036 KB Output is correct
36 Correct 138 ms 134932 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 134904 KB Output is correct
2 Correct 134 ms 135032 KB Output is correct
3 Correct 136 ms 134984 KB Output is correct
4 Correct 136 ms 134916 KB Output is correct
5 Correct 137 ms 135056 KB Output is correct
6 Correct 142 ms 135032 KB Output is correct
7 Correct 139 ms 135008 KB Output is correct
8 Correct 137 ms 134932 KB Output is correct
9 Correct 137 ms 135088 KB Output is correct
10 Correct 155 ms 134984 KB Output is correct
11 Correct 136 ms 134904 KB Output is correct
12 Correct 138 ms 134904 KB Output is correct
13 Correct 147 ms 135032 KB Output is correct
14 Correct 140 ms 134904 KB Output is correct
15 Correct 144 ms 135004 KB Output is correct
16 Correct 137 ms 135032 KB Output is correct
17 Correct 136 ms 135032 KB Output is correct
18 Correct 148 ms 135032 KB Output is correct
19 Correct 151 ms 135060 KB Output is correct
20 Correct 148 ms 135520 KB Output is correct
21 Correct 141 ms 135544 KB Output is correct
22 Correct 182 ms 141176 KB Output is correct
23 Correct 187 ms 141176 KB Output is correct
24 Correct 198 ms 141276 KB Output is correct
25 Correct 188 ms 141240 KB Output is correct
26 Correct 191 ms 141180 KB Output is correct
27 Correct 186 ms 141048 KB Output is correct
28 Correct 188 ms 141520 KB Output is correct
29 Correct 210 ms 141528 KB Output is correct
30 Correct 185 ms 141432 KB Output is correct
31 Correct 181 ms 141172 KB Output is correct
32 Correct 189 ms 141560 KB Output is correct
33 Correct 188 ms 141308 KB Output is correct
34 Correct 190 ms 141432 KB Output is correct
35 Correct 140 ms 135108 KB Output is correct
36 Correct 137 ms 134936 KB Output is correct
37 Correct 188 ms 141432 KB Output is correct
38 Correct 190 ms 141436 KB Output is correct
39 Correct 203 ms 141560 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 140 ms 135028 KB Output is correct
2 Correct 141 ms 134984 KB Output is correct
3 Correct 147 ms 135104 KB Output is correct
4 Correct 136 ms 134928 KB Output is correct
5 Correct 220 ms 141028 KB Output is correct
6 Correct 203 ms 141164 KB Output is correct
7 Correct 223 ms 140968 KB Output is correct
8 Correct 212 ms 141432 KB Output is correct
9 Correct 228 ms 141060 KB Output is correct
10 Correct 208 ms 141008 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 134904 KB Output is correct
2 Correct 134 ms 135032 KB Output is correct
3 Correct 136 ms 135012 KB Output is correct
4 Correct 135 ms 134904 KB Output is correct
5 Correct 136 ms 135016 KB Output is correct
6 Correct 144 ms 134952 KB Output is correct
7 Correct 149 ms 134992 KB Output is correct
8 Correct 138 ms 134904 KB Output is correct
9 Correct 134 ms 134904 KB Output is correct
10 Correct 135 ms 134904 KB Output is correct
11 Correct 137 ms 135004 KB Output is correct
12 Correct 135 ms 135088 KB Output is correct
13 Correct 136 ms 134920 KB Output is correct
14 Correct 137 ms 134964 KB Output is correct
15 Correct 136 ms 135008 KB Output is correct
16 Correct 135 ms 135104 KB Output is correct
17 Correct 156 ms 134916 KB Output is correct
18 Correct 135 ms 134904 KB Output is correct
19 Correct 136 ms 134940 KB Output is correct
20 Correct 135 ms 134904 KB Output is correct
21 Correct 142 ms 135160 KB Output is correct
22 Correct 137 ms 134904 KB Output is correct
23 Correct 136 ms 135032 KB Output is correct
24 Correct 139 ms 135120 KB Output is correct
25 Correct 137 ms 134904 KB Output is correct
26 Correct 135 ms 134940 KB Output is correct
27 Correct 140 ms 135016 KB Output is correct
28 Correct 139 ms 134904 KB Output is correct
29 Correct 136 ms 135072 KB Output is correct
30 Correct 136 ms 135012 KB Output is correct
31 Correct 135 ms 135032 KB Output is correct
32 Correct 135 ms 135032 KB Output is correct
33 Correct 138 ms 134904 KB Output is correct
34 Correct 138 ms 134904 KB Output is correct
35 Correct 135 ms 135036 KB Output is correct
36 Correct 138 ms 134932 KB Output is correct
37 Correct 139 ms 134904 KB Output is correct
38 Correct 137 ms 134904 KB Output is correct
39 Correct 135 ms 134980 KB Output is correct
40 Correct 137 ms 135032 KB Output is correct
41 Correct 151 ms 135076 KB Output is correct
42 Correct 138 ms 135032 KB Output is correct
43 Correct 141 ms 135052 KB Output is correct
44 Correct 141 ms 135032 KB Output is correct
45 Correct 136 ms 135032 KB Output is correct
46 Correct 137 ms 135072 KB Output is correct
47 Correct 138 ms 135004 KB Output is correct
48 Correct 137 ms 134960 KB Output is correct
49 Correct 140 ms 135032 KB Output is correct
50 Correct 148 ms 135144 KB Output is correct
51 Correct 150 ms 135080 KB Output is correct
52 Correct 138 ms 135088 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 134904 KB Output is correct
2 Correct 134 ms 135032 KB Output is correct
3 Correct 136 ms 135012 KB Output is correct
4 Correct 135 ms 134904 KB Output is correct
5 Correct 136 ms 135016 KB Output is correct
6 Correct 144 ms 134952 KB Output is correct
7 Correct 149 ms 134992 KB Output is correct
8 Correct 138 ms 134904 KB Output is correct
9 Correct 134 ms 134904 KB Output is correct
10 Correct 135 ms 134904 KB Output is correct
11 Correct 137 ms 135004 KB Output is correct
12 Correct 135 ms 135088 KB Output is correct
13 Correct 136 ms 134920 KB Output is correct
14 Correct 137 ms 134964 KB Output is correct
15 Correct 136 ms 135008 KB Output is correct
16 Correct 135 ms 135104 KB Output is correct
17 Correct 156 ms 134916 KB Output is correct
18 Correct 135 ms 134904 KB Output is correct
19 Correct 136 ms 134940 KB Output is correct
20 Correct 135 ms 134904 KB Output is correct
21 Correct 142 ms 135160 KB Output is correct
22 Correct 137 ms 134904 KB Output is correct
23 Correct 136 ms 135032 KB Output is correct
24 Correct 139 ms 135120 KB Output is correct
25 Correct 137 ms 134904 KB Output is correct
26 Correct 135 ms 134940 KB Output is correct
27 Correct 140 ms 135016 KB Output is correct
28 Correct 139 ms 134904 KB Output is correct
29 Correct 136 ms 135072 KB Output is correct
30 Correct 136 ms 135012 KB Output is correct
31 Correct 135 ms 135032 KB Output is correct
32 Correct 135 ms 135032 KB Output is correct
33 Correct 138 ms 134904 KB Output is correct
34 Correct 138 ms 134904 KB Output is correct
35 Correct 135 ms 135036 KB Output is correct
36 Correct 138 ms 134932 KB Output is correct
37 Correct 136 ms 134984 KB Output is correct
38 Correct 136 ms 134916 KB Output is correct
39 Correct 137 ms 135056 KB Output is correct
40 Correct 142 ms 135032 KB Output is correct
41 Correct 139 ms 135008 KB Output is correct
42 Correct 137 ms 134932 KB Output is correct
43 Correct 137 ms 135088 KB Output is correct
44 Correct 155 ms 134984 KB Output is correct
45 Correct 136 ms 134904 KB Output is correct
46 Correct 138 ms 134904 KB Output is correct
47 Correct 147 ms 135032 KB Output is correct
48 Correct 140 ms 134904 KB Output is correct
49 Correct 144 ms 135004 KB Output is correct
50 Correct 137 ms 135032 KB Output is correct
51 Correct 136 ms 135032 KB Output is correct
52 Correct 148 ms 135032 KB Output is correct
53 Correct 151 ms 135060 KB Output is correct
54 Correct 148 ms 135520 KB Output is correct
55 Correct 141 ms 135544 KB Output is correct
56 Correct 182 ms 141176 KB Output is correct
57 Correct 187 ms 141176 KB Output is correct
58 Correct 198 ms 141276 KB Output is correct
59 Correct 188 ms 141240 KB Output is correct
60 Correct 191 ms 141180 KB Output is correct
61 Correct 186 ms 141048 KB Output is correct
62 Correct 188 ms 141520 KB Output is correct
63 Correct 210 ms 141528 KB Output is correct
64 Correct 185 ms 141432 KB Output is correct
65 Correct 181 ms 141172 KB Output is correct
66 Correct 189 ms 141560 KB Output is correct
67 Correct 188 ms 141308 KB Output is correct
68 Correct 190 ms 141432 KB Output is correct
69 Correct 140 ms 135108 KB Output is correct
70 Correct 137 ms 134936 KB Output is correct
71 Correct 188 ms 141432 KB Output is correct
72 Correct 190 ms 141436 KB Output is correct
73 Correct 203 ms 141560 KB Output is correct
74 Correct 140 ms 135028 KB Output is correct
75 Correct 141 ms 134984 KB Output is correct
76 Correct 147 ms 135104 KB Output is correct
77 Correct 136 ms 134928 KB Output is correct
78 Correct 220 ms 141028 KB Output is correct
79 Correct 203 ms 141164 KB Output is correct
80 Correct 223 ms 140968 KB Output is correct
81 Correct 212 ms 141432 KB Output is correct
82 Correct 228 ms 141060 KB Output is correct
83 Correct 208 ms 141008 KB Output is correct
84 Correct 139 ms 134904 KB Output is correct
85 Correct 137 ms 134904 KB Output is correct
86 Correct 135 ms 134980 KB Output is correct
87 Correct 137 ms 135032 KB Output is correct
88 Correct 151 ms 135076 KB Output is correct
89 Correct 138 ms 135032 KB Output is correct
90 Correct 141 ms 135052 KB Output is correct
91 Correct 141 ms 135032 KB Output is correct
92 Correct 136 ms 135032 KB Output is correct
93 Correct 137 ms 135072 KB Output is correct
94 Correct 138 ms 135004 KB Output is correct
95 Correct 137 ms 134960 KB Output is correct
96 Correct 140 ms 135032 KB Output is correct
97 Correct 148 ms 135144 KB Output is correct
98 Correct 150 ms 135080 KB Output is correct
99 Correct 138 ms 135088 KB Output is correct
100 Correct 137 ms 134984 KB Output is correct
101 Correct 143 ms 135548 KB Output is correct
102 Correct 146 ms 135540 KB Output is correct
103 Correct 229 ms 141324 KB Output is correct
104 Correct 196 ms 141048 KB Output is correct
105 Correct 285 ms 141304 KB Output is correct
106 Correct 236 ms 141052 KB Output is correct
107 Correct 209 ms 141280 KB Output is correct
108 Correct 189 ms 141048 KB Output is correct
109 Correct 188 ms 141432 KB Output is correct
110 Correct 192 ms 141576 KB Output is correct
111 Correct 223 ms 141048 KB Output is correct
112 Correct 255 ms 141180 KB Output is correct
113 Correct 233 ms 141196 KB Output is correct
114 Correct 219 ms 141020 KB Output is correct
115 Correct 215 ms 141024 KB Output is correct