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Submission #959536

# Submission time Handle Problem Language Result Execution time Memory
959536 2024-04-08T12:13:35 Z AndreiBOTO Arranging Shoes (IOI19_shoes) C++14
100 / 100
 207 ms 275284 KB 
#include <bits/stdc++.h>

#pragma optimize GCC ("Ofast")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

///#include <tryhardmode>
///#include <GODMODE::ON>

using namespace std;

const int NMAX=2e5+5;

queue<int>right_shoe[NMAX];
queue<int>left_shoe[NMAX];

bool viz[NMAX];
int aib[NMAX];
int v[NMAX];
int n;

int lsb(int x)
{
    return x&(-x);
}

void update(int p,int val)
{
    while(p<=n)
    {
        aib[p]+=val;
        p+=lsb(p);
    }
}

long long query(int p)
{
    long long s=0;
    while(p>0)
    {
        s+=aib[p];
        p-=lsb(p);
    }
    return s;
}

long long query_range(int x,int y)
{
    return query(y)-query(x-1);
}

long long count_swaps(vector<int>a)
{
    int i;
    long long kon=0;
    n=a.size();
    for(i=1;i<=n;i++)
        v[i]=a[i-1];
    for(i=1;i<=n;i++)
    {
        if(v[i]<0)
            left_shoe[-v[i]].push(i);
        else
            right_shoe[v[i]].push(i);
    }
    for(i=1;i<=n;i++)
    {
        if(viz[i])
            continue;
        if(v[i]<0)
        {
            int x=left_shoe[-v[i]].front();
            int y=right_shoe[-v[i]].front();
            kon+=y-x-query_range(x+1,y)-1;
            left_shoe[-v[i]].pop();
            right_shoe[-v[i]].pop();
            update(x,1);
            update(y,1);
            viz[x]=true;
            viz[y]=true;
        }
        else
        {
            int x=right_shoe[v[i]].front();
            int y=left_shoe[v[i]].front();
            kon+=y-x-query_range(x+1,y);
            left_shoe[v[i]].pop();
            right_shoe[v[i]].pop();
            update(x,1);
            update(y,1);
            viz[x]=true;
            viz[y]=true;
        }
    }
    return kon;
}

/*
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    vector<int>arr={2, 1, -1, -2};
    //cout<<count_swaps(arr);
    return 0;
}*/

Compilation message

shoes.cpp:3: warning: ignoring '#pragma optimize GCC' [-Wunknown-pragmas]
    3 | #pragma optimize GCC ("Ofast")
      |

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 269704 KB Output is correct
2 Correct 155 ms 269576 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 269704 KB Output is correct
2 Correct 155 ms 269576 KB Output is correct
3 Correct 134 ms 269540 KB Output is correct
4 Correct 133 ms 269652 KB Output is correct
5 Correct 142 ms 269576 KB Output is correct
6 Correct 133 ms 269664 KB Output is correct
7 Correct 133 ms 269652 KB Output is correct
8 Correct 134 ms 269596 KB Output is correct
9 Correct 149 ms 269648 KB Output is correct
10 Correct 133 ms 269548 KB Output is correct
11 Correct 140 ms 269796 KB Output is correct
12 Correct 134 ms 269612 KB Output is correct
13 Correct 135 ms 269588 KB Output is correct
14 Correct 133 ms 269496 KB Output is correct
15 Correct 131 ms 269652 KB Output is correct
16 Correct 134 ms 269716 KB Output is correct
17 Correct 133 ms 269652 KB Output is correct
18 Correct 136 ms 269732 KB Output is correct
19 Correct 132 ms 269648 KB Output is correct
20 Correct 133 ms 269600 KB Output is correct
21 Correct 135 ms 269604 KB Output is correct
22 Correct 132 ms 269680 KB Output is correct
23 Correct 137 ms 269640 KB Output is correct
24 Correct 133 ms 269652 KB Output is correct
25 Correct 135 ms 269684 KB Output is correct
26 Correct 144 ms 269652 KB Output is correct
27 Correct 132 ms 269652 KB Output is correct
28 Correct 134 ms 269552 KB Output is correct
29 Correct 133 ms 269648 KB Output is correct
30 Correct 139 ms 269652 KB Output is correct
31 Correct 132 ms 269648 KB Output is correct
32 Correct 133 ms 269504 KB Output is correct
33 Correct 133 ms 269704 KB Output is correct
34 Correct 135 ms 269684 KB Output is correct
35 Correct 136 ms 269720 KB Output is correct
36 Correct 133 ms 269604 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 269704 KB Output is correct
2 Correct 155 ms 269576 KB Output is correct
3 Correct 142 ms 269652 KB Output is correct
4 Correct 134 ms 269528 KB Output is correct
5 Correct 134 ms 269652 KB Output is correct
6 Correct 136 ms 269544 KB Output is correct
7 Correct 137 ms 269704 KB Output is correct
8 Correct 131 ms 269652 KB Output is correct
9 Correct 135 ms 269696 KB Output is correct
10 Correct 143 ms 269884 KB Output is correct
11 Correct 130 ms 269544 KB Output is correct
12 Correct 132 ms 269508 KB Output is correct
13 Correct 139 ms 269528 KB Output is correct
14 Correct 133 ms 269648 KB Output is correct
15 Correct 133 ms 269556 KB Output is correct
16 Correct 155 ms 269652 KB Output is correct
17 Correct 134 ms 269688 KB Output is correct
18 Correct 135 ms 269552 KB Output is correct
19 Correct 133 ms 269652 KB Output is correct
20 Correct 147 ms 270160 KB Output is correct
21 Correct 148 ms 270164 KB Output is correct
22 Correct 171 ms 275032 KB Output is correct
23 Correct 170 ms 274988 KB Output is correct
24 Correct 172 ms 275280 KB Output is correct
25 Correct 167 ms 274768 KB Output is correct
26 Correct 174 ms 275068 KB Output is correct
27 Correct 164 ms 274776 KB Output is correct
28 Correct 169 ms 275036 KB Output is correct
29 Correct 167 ms 275040 KB Output is correct
30 Correct 172 ms 275176 KB Output is correct
31 Correct 167 ms 275112 KB Output is correct
32 Correct 166 ms 275016 KB Output is correct
33 Correct 177 ms 274844 KB Output is correct
34 Correct 168 ms 275024 KB Output is correct
35 Correct 131 ms 269648 KB Output is correct
36 Correct 134 ms 269520 KB Output is correct
37 Correct 171 ms 275284 KB Output is correct
38 Correct 167 ms 274912 KB Output is correct
39 Correct 165 ms 275140 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 132 ms 269516 KB Output is correct
2 Correct 131 ms 269652 KB Output is correct
3 Correct 133 ms 269644 KB Output is correct
4 Correct 132 ms 269704 KB Output is correct
5 Correct 188 ms 274208 KB Output is correct
6 Correct 162 ms 274228 KB Output is correct
7 Correct 197 ms 274260 KB Output is correct
8 Correct 163 ms 275024 KB Output is correct
9 Correct 193 ms 274256 KB Output is correct
10 Correct 207 ms 274164 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 269704 KB Output is correct
2 Correct 155 ms 269576 KB Output is correct
3 Correct 134 ms 269540 KB Output is correct
4 Correct 133 ms 269652 KB Output is correct
5 Correct 142 ms 269576 KB Output is correct
6 Correct 133 ms 269664 KB Output is correct
7 Correct 133 ms 269652 KB Output is correct
8 Correct 134 ms 269596 KB Output is correct
9 Correct 149 ms 269648 KB Output is correct
10 Correct 133 ms 269548 KB Output is correct
11 Correct 140 ms 269796 KB Output is correct
12 Correct 134 ms 269612 KB Output is correct
13 Correct 135 ms 269588 KB Output is correct
14 Correct 133 ms 269496 KB Output is correct
15 Correct 131 ms 269652 KB Output is correct
16 Correct 134 ms 269716 KB Output is correct
17 Correct 133 ms 269652 KB Output is correct
18 Correct 136 ms 269732 KB Output is correct
19 Correct 132 ms 269648 KB Output is correct
20 Correct 133 ms 269600 KB Output is correct
21 Correct 135 ms 269604 KB Output is correct
22 Correct 132 ms 269680 KB Output is correct
23 Correct 137 ms 269640 KB Output is correct
24 Correct 133 ms 269652 KB Output is correct
25 Correct 135 ms 269684 KB Output is correct
26 Correct 144 ms 269652 KB Output is correct
27 Correct 132 ms 269652 KB Output is correct
28 Correct 134 ms 269552 KB Output is correct
29 Correct 133 ms 269648 KB Output is correct
30 Correct 139 ms 269652 KB Output is correct
31 Correct 132 ms 269648 KB Output is correct
32 Correct 133 ms 269504 KB Output is correct
33 Correct 133 ms 269704 KB Output is correct
34 Correct 135 ms 269684 KB Output is correct
35 Correct 136 ms 269720 KB Output is correct
36 Correct 133 ms 269604 KB Output is correct
37 Correct 148 ms 269564 KB Output is correct
38 Correct 135 ms 269532 KB Output is correct
39 Correct 135 ms 269608 KB Output is correct
40 Correct 134 ms 269908 KB Output is correct
41 Correct 136 ms 269544 KB Output is correct
42 Correct 134 ms 269716 KB Output is correct
43 Correct 138 ms 269524 KB Output is correct
44 Correct 139 ms 269648 KB Output is correct
45 Correct 135 ms 269652 KB Output is correct
46 Correct 143 ms 269604 KB Output is correct
47 Correct 151 ms 269648 KB Output is correct
48 Correct 133 ms 269720 KB Output is correct
49 Correct 133 ms 269716 KB Output is correct
50 Correct 134 ms 269648 KB Output is correct
51 Correct 167 ms 269900 KB Output is correct
52 Correct 139 ms 269592 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 138 ms 269704 KB Output is correct
2 Correct 155 ms 269576 KB Output is correct
3 Correct 134 ms 269540 KB Output is correct
4 Correct 133 ms 269652 KB Output is correct
5 Correct 142 ms 269576 KB Output is correct
6 Correct 133 ms 269664 KB Output is correct
7 Correct 133 ms 269652 KB Output is correct
8 Correct 134 ms 269596 KB Output is correct
9 Correct 149 ms 269648 KB Output is correct
10 Correct 133 ms 269548 KB Output is correct
11 Correct 140 ms 269796 KB Output is correct
12 Correct 134 ms 269612 KB Output is correct
13 Correct 135 ms 269588 KB Output is correct
14 Correct 133 ms 269496 KB Output is correct
15 Correct 131 ms 269652 KB Output is correct
16 Correct 134 ms 269716 KB Output is correct
17 Correct 133 ms 269652 KB Output is correct
18 Correct 136 ms 269732 KB Output is correct
19 Correct 132 ms 269648 KB Output is correct
20 Correct 133 ms 269600 KB Output is correct
21 Correct 135 ms 269604 KB Output is correct
22 Correct 132 ms 269680 KB Output is correct
23 Correct 137 ms 269640 KB Output is correct
24 Correct 133 ms 269652 KB Output is correct
25 Correct 135 ms 269684 KB Output is correct
26 Correct 144 ms 269652 KB Output is correct
27 Correct 132 ms 269652 KB Output is correct
28 Correct 134 ms 269552 KB Output is correct
29 Correct 133 ms 269648 KB Output is correct
30 Correct 139 ms 269652 KB Output is correct
31 Correct 132 ms 269648 KB Output is correct
32 Correct 133 ms 269504 KB Output is correct
33 Correct 133 ms 269704 KB Output is correct
34 Correct 135 ms 269684 KB Output is correct
35 Correct 136 ms 269720 KB Output is correct
36 Correct 133 ms 269604 KB Output is correct
37 Correct 142 ms 269652 KB Output is correct
38 Correct 134 ms 269528 KB Output is correct
39 Correct 134 ms 269652 KB Output is correct
40 Correct 136 ms 269544 KB Output is correct
41 Correct 137 ms 269704 KB Output is correct
42 Correct 131 ms 269652 KB Output is correct
43 Correct 135 ms 269696 KB Output is correct
44 Correct 143 ms 269884 KB Output is correct
45 Correct 130 ms 269544 KB Output is correct
46 Correct 132 ms 269508 KB Output is correct
47 Correct 139 ms 269528 KB Output is correct
48 Correct 133 ms 269648 KB Output is correct
49 Correct 133 ms 269556 KB Output is correct
50 Correct 155 ms 269652 KB Output is correct
51 Correct 134 ms 269688 KB Output is correct
52 Correct 135 ms 269552 KB Output is correct
53 Correct 133 ms 269652 KB Output is correct
54 Correct 147 ms 270160 KB Output is correct
55 Correct 148 ms 270164 KB Output is correct
56 Correct 171 ms 275032 KB Output is correct
57 Correct 170 ms 274988 KB Output is correct
58 Correct 172 ms 275280 KB Output is correct
59 Correct 167 ms 274768 KB Output is correct
60 Correct 174 ms 275068 KB Output is correct
61 Correct 164 ms 274776 KB Output is correct
62 Correct 169 ms 275036 KB Output is correct
63 Correct 167 ms 275040 KB Output is correct
64 Correct 172 ms 275176 KB Output is correct
65 Correct 167 ms 275112 KB Output is correct
66 Correct 166 ms 275016 KB Output is correct
67 Correct 177 ms 274844 KB Output is correct
68 Correct 168 ms 275024 KB Output is correct
69 Correct 131 ms 269648 KB Output is correct
70 Correct 134 ms 269520 KB Output is correct
71 Correct 171 ms 275284 KB Output is correct
72 Correct 167 ms 274912 KB Output is correct
73 Correct 165 ms 275140 KB Output is correct
74 Correct 132 ms 269516 KB Output is correct
75 Correct 131 ms 269652 KB Output is correct
76 Correct 133 ms 269644 KB Output is correct
77 Correct 132 ms 269704 KB Output is correct
78 Correct 188 ms 274208 KB Output is correct
79 Correct 162 ms 274228 KB Output is correct
80 Correct 197 ms 274260 KB Output is correct
81 Correct 163 ms 275024 KB Output is correct
82 Correct 193 ms 274256 KB Output is correct
83 Correct 207 ms 274164 KB Output is correct
84 Correct 148 ms 269564 KB Output is correct
85 Correct 135 ms 269532 KB Output is correct
86 Correct 135 ms 269608 KB Output is correct
87 Correct 134 ms 269908 KB Output is correct
88 Correct 136 ms 269544 KB Output is correct
89 Correct 134 ms 269716 KB Output is correct
90 Correct 138 ms 269524 KB Output is correct
91 Correct 139 ms 269648 KB Output is correct
92 Correct 135 ms 269652 KB Output is correct
93 Correct 143 ms 269604 KB Output is correct
94 Correct 151 ms 269648 KB Output is correct
95 Correct 133 ms 269720 KB Output is correct
96 Correct 133 ms 269716 KB Output is correct
97 Correct 134 ms 269648 KB Output is correct
98 Correct 167 ms 269900 KB Output is correct
99 Correct 139 ms 269592 KB Output is correct
100 Correct 135 ms 269640 KB Output is correct
101 Correct 152 ms 270072 KB Output is correct
102 Correct 140 ms 269908 KB Output is correct
103 Correct 195 ms 274196 KB Output is correct
104 Correct 194 ms 274260 KB Output is correct
105 Correct 203 ms 274252 KB Output is correct
106 Correct 193 ms 274104 KB Output is correct
107 Correct 174 ms 274292 KB Output is correct
108 Correct 186 ms 274052 KB Output is correct
109 Correct 168 ms 275024 KB Output is correct
110 Correct 165 ms 275108 KB Output is correct
111 Correct 202 ms 274060 KB Output is correct
112 Correct 190 ms 274260 KB Output is correct
113 Correct 174 ms 274196 KB Output is correct
114 Correct 190 ms 274164 KB Output is correct
115 Correct 186 ms 274256 KB Output is correct