oj.uz

Submission #158392

# Submission time Handle Problem Language Result Execution time Memory
158392 2019-10-16T21:51:01 Z nickmet2004 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 250 ms 139192 KB 
#include<bits/stdc++.h>
//#include<shoes.h>
 
using namespace std;
 
const int NAX = 1e5 + 5;
const int l = 1e5 + 5;
 
int N;
// fenwick tree to count range sums (+0 , +1 , +2)
 
int f[2 * NAX + 1];
 
void update(int idx , int u){
    ++idx;
    while(idx <= N){
        f[idx] += u;
        idx += idx & (-idx);
    }
}
long long sum(int idx){
    long long sum = 0;
    ++idx;
    while(idx){
        sum += f[idx];
        idx -= idx & (-idx);
    }
    return sum;
}
queue<int> q[2 * NAX + 200];
 
long long count_swaps(vector<int> S){
    N = S.size();
    long long ans = 0;
    // update BIT
    for(int i = 0; i < N; ++i){
        update(i , 1);
    }
    for(int i = 0; i < N; ++i){
        int x = abs(S[i]);
        int k = S[i];
        if(!q[k + l].empty()){
            ans += (sum(i) - sum(q[k + l].front()));
            if(k > 0){
                --ans;
                update(i , -1);
                update(q[k + l].front() + 1 , 1);
                q[k + l].pop();
            } else {
                update(i , -1);
                update(q[k + l].front() , 1);
                q[k + l].pop();
            }
        } else {
            // q[k * -1 + l] because its opposite is the same as the next x
            // k * -1 + l == next_x(k + l)
            q[k * -1 + l].push(i);
        }
    }
    return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:40:13: warning: unused variable 'x' [-Wunused-variable]
         int x = abs(S[i]);
             ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 136 ms 135160 KB Output is correct
2 Correct 136 ms 135084 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 136 ms 135160 KB Output is correct
2 Correct 136 ms 135084 KB Output is correct
3 Correct 141 ms 135064 KB Output is correct
4 Correct 137 ms 135128 KB Output is correct
5 Correct 169 ms 135032 KB Output is correct
6 Correct 153 ms 135124 KB Output is correct
7 Correct 135 ms 135020 KB Output is correct
8 Correct 143 ms 135064 KB Output is correct
9 Correct 150 ms 135316 KB Output is correct
10 Correct 158 ms 135076 KB Output is correct
11 Correct 137 ms 135032 KB Output is correct
12 Correct 164 ms 135032 KB Output is correct
13 Correct 154 ms 135048 KB Output is correct
14 Correct 134 ms 135164 KB Output is correct
15 Correct 135 ms 135224 KB Output is correct
16 Correct 136 ms 135132 KB Output is correct
17 Correct 149 ms 135076 KB Output is correct
18 Correct 155 ms 135268 KB Output is correct
19 Correct 138 ms 135160 KB Output is correct
20 Correct 134 ms 135032 KB Output is correct
21 Correct 133 ms 135160 KB Output is correct
22 Correct 134 ms 135160 KB Output is correct
23 Correct 134 ms 135148 KB Output is correct
24 Correct 135 ms 135032 KB Output is correct
25 Correct 134 ms 135160 KB Output is correct
26 Correct 133 ms 135068 KB Output is correct
27 Correct 132 ms 135132 KB Output is correct
28 Correct 133 ms 135032 KB Output is correct
29 Correct 134 ms 135032 KB Output is correct
30 Correct 134 ms 135160 KB Output is correct
31 Correct 134 ms 135148 KB Output is correct
32 Correct 133 ms 135160 KB Output is correct
33 Correct 134 ms 135052 KB Output is correct
34 Correct 134 ms 135036 KB Output is correct
35 Correct 134 ms 135032 KB Output is correct
36 Correct 133 ms 135016 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 136 ms 135160 KB Output is correct
2 Correct 136 ms 135084 KB Output is correct
3 Correct 135 ms 135052 KB Output is correct
4 Correct 133 ms 135108 KB Output is correct
5 Correct 135 ms 135168 KB Output is correct
6 Correct 135 ms 135272 KB Output is correct
7 Correct 133 ms 135164 KB Output is correct
8 Correct 134 ms 135160 KB Output is correct
9 Correct 132 ms 135072 KB Output is correct
10 Correct 133 ms 135132 KB Output is correct
11 Correct 132 ms 135100 KB Output is correct
12 Correct 134 ms 135056 KB Output is correct
13 Correct 134 ms 135032 KB Output is correct
14 Correct 134 ms 135104 KB Output is correct
15 Correct 135 ms 135032 KB Output is correct
16 Correct 135 ms 135032 KB Output is correct
17 Correct 139 ms 135160 KB Output is correct
18 Correct 138 ms 135160 KB Output is correct
19 Correct 140 ms 135192 KB Output is correct
20 Correct 142 ms 135416 KB Output is correct
21 Correct 141 ms 135416 KB Output is correct
22 Correct 179 ms 137568 KB Output is correct
23 Correct 173 ms 137716 KB Output is correct
24 Correct 182 ms 137592 KB Output is correct
25 Correct 177 ms 138020 KB Output is correct
26 Correct 189 ms 138744 KB Output is correct
27 Correct 184 ms 138696 KB Output is correct
28 Correct 187 ms 139100 KB Output is correct
29 Correct 179 ms 139188 KB Output is correct
30 Correct 182 ms 139128 KB Output is correct
31 Correct 185 ms 138792 KB Output is correct
32 Correct 175 ms 139128 KB Output is correct
33 Correct 176 ms 139000 KB Output is correct
34 Correct 180 ms 139164 KB Output is correct
35 Correct 135 ms 135100 KB Output is correct
36 Correct 133 ms 135164 KB Output is correct
37 Correct 174 ms 139128 KB Output is correct
38 Correct 177 ms 139128 KB Output is correct
39 Correct 175 ms 139132 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 135032 KB Output is correct
2 Correct 141 ms 135120 KB Output is correct
3 Correct 134 ms 135160 KB Output is correct
4 Correct 147 ms 135164 KB Output is correct
5 Correct 207 ms 137716 KB Output is correct
6 Correct 189 ms 138744 KB Output is correct
7 Correct 210 ms 138744 KB Output is correct
8 Correct 180 ms 139144 KB Output is correct
9 Correct 208 ms 138656 KB Output is correct
10 Correct 197 ms 138616 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 136 ms 135160 KB Output is correct
2 Correct 136 ms 135084 KB Output is correct
3 Correct 141 ms 135064 KB Output is correct
4 Correct 137 ms 135128 KB Output is correct
5 Correct 169 ms 135032 KB Output is correct
6 Correct 153 ms 135124 KB Output is correct
7 Correct 135 ms 135020 KB Output is correct
8 Correct 143 ms 135064 KB Output is correct
9 Correct 150 ms 135316 KB Output is correct
10 Correct 158 ms 135076 KB Output is correct
11 Correct 137 ms 135032 KB Output is correct
12 Correct 164 ms 135032 KB Output is correct
13 Correct 154 ms 135048 KB Output is correct
14 Correct 134 ms 135164 KB Output is correct
15 Correct 135 ms 135224 KB Output is correct
16 Correct 136 ms 135132 KB Output is correct
17 Correct 149 ms 135076 KB Output is correct
18 Correct 155 ms 135268 KB Output is correct
19 Correct 138 ms 135160 KB Output is correct
20 Correct 134 ms 135032 KB Output is correct
21 Correct 133 ms 135160 KB Output is correct
22 Correct 134 ms 135160 KB Output is correct
23 Correct 134 ms 135148 KB Output is correct
24 Correct 135 ms 135032 KB Output is correct
25 Correct 134 ms 135160 KB Output is correct
26 Correct 133 ms 135068 KB Output is correct
27 Correct 132 ms 135132 KB Output is correct
28 Correct 133 ms 135032 KB Output is correct
29 Correct 134 ms 135032 KB Output is correct
30 Correct 134 ms 135160 KB Output is correct
31 Correct 134 ms 135148 KB Output is correct
32 Correct 133 ms 135160 KB Output is correct
33 Correct 134 ms 135052 KB Output is correct
34 Correct 134 ms 135036 KB Output is correct
35 Correct 134 ms 135032 KB Output is correct
36 Correct 133 ms 135016 KB Output is correct
37 Correct 152 ms 135148 KB Output is correct
38 Correct 140 ms 135092 KB Output is correct
39 Correct 134 ms 135132 KB Output is correct
40 Correct 140 ms 135032 KB Output is correct
41 Correct 137 ms 135160 KB Output is correct
42 Correct 134 ms 135160 KB Output is correct
43 Correct 144 ms 135164 KB Output is correct
44 Correct 154 ms 135160 KB Output is correct
45 Correct 162 ms 135132 KB Output is correct
46 Correct 165 ms 135160 KB Output is correct
47 Correct 134 ms 135160 KB Output is correct
48 Correct 135 ms 135164 KB Output is correct
49 Correct 146 ms 135208 KB Output is correct
50 Correct 163 ms 135120 KB Output is correct
51 Correct 152 ms 135260 KB Output is correct
52 Correct 144 ms 135208 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 136 ms 135160 KB Output is correct
2 Correct 136 ms 135084 KB Output is correct
3 Correct 141 ms 135064 KB Output is correct
4 Correct 137 ms 135128 KB Output is correct
5 Correct 169 ms 135032 KB Output is correct
6 Correct 153 ms 135124 KB Output is correct
7 Correct 135 ms 135020 KB Output is correct
8 Correct 143 ms 135064 KB Output is correct
9 Correct 150 ms 135316 KB Output is correct
10 Correct 158 ms 135076 KB Output is correct
11 Correct 137 ms 135032 KB Output is correct
12 Correct 164 ms 135032 KB Output is correct
13 Correct 154 ms 135048 KB Output is correct
14 Correct 134 ms 135164 KB Output is correct
15 Correct 135 ms 135224 KB Output is correct
16 Correct 136 ms 135132 KB Output is correct
17 Correct 149 ms 135076 KB Output is correct
18 Correct 155 ms 135268 KB Output is correct
19 Correct 138 ms 135160 KB Output is correct
20 Correct 134 ms 135032 KB Output is correct
21 Correct 133 ms 135160 KB Output is correct
22 Correct 134 ms 135160 KB Output is correct
23 Correct 134 ms 135148 KB Output is correct
24 Correct 135 ms 135032 KB Output is correct
25 Correct 134 ms 135160 KB Output is correct
26 Correct 133 ms 135068 KB Output is correct
27 Correct 132 ms 135132 KB Output is correct
28 Correct 133 ms 135032 KB Output is correct
29 Correct 134 ms 135032 KB Output is correct
30 Correct 134 ms 135160 KB Output is correct
31 Correct 134 ms 135148 KB Output is correct
32 Correct 133 ms 135160 KB Output is correct
33 Correct 134 ms 135052 KB Output is correct
34 Correct 134 ms 135036 KB Output is correct
35 Correct 134 ms 135032 KB Output is correct
36 Correct 133 ms 135016 KB Output is correct
37 Correct 135 ms 135052 KB Output is correct
38 Correct 133 ms 135108 KB Output is correct
39 Correct 135 ms 135168 KB Output is correct
40 Correct 135 ms 135272 KB Output is correct
41 Correct 133 ms 135164 KB Output is correct
42 Correct 134 ms 135160 KB Output is correct
43 Correct 132 ms 135072 KB Output is correct
44 Correct 133 ms 135132 KB Output is correct
45 Correct 132 ms 135100 KB Output is correct
46 Correct 134 ms 135056 KB Output is correct
47 Correct 134 ms 135032 KB Output is correct
48 Correct 134 ms 135104 KB Output is correct
49 Correct 135 ms 135032 KB Output is correct
50 Correct 135 ms 135032 KB Output is correct
51 Correct 139 ms 135160 KB Output is correct
52 Correct 138 ms 135160 KB Output is correct
53 Correct 140 ms 135192 KB Output is correct
54 Correct 142 ms 135416 KB Output is correct
55 Correct 141 ms 135416 KB Output is correct
56 Correct 179 ms 137568 KB Output is correct
57 Correct 173 ms 137716 KB Output is correct
58 Correct 182 ms 137592 KB Output is correct
59 Correct 177 ms 138020 KB Output is correct
60 Correct 189 ms 138744 KB Output is correct
61 Correct 184 ms 138696 KB Output is correct
62 Correct 187 ms 139100 KB Output is correct
63 Correct 179 ms 139188 KB Output is correct
64 Correct 182 ms 139128 KB Output is correct
65 Correct 185 ms 138792 KB Output is correct
66 Correct 175 ms 139128 KB Output is correct
67 Correct 176 ms 139000 KB Output is correct
68 Correct 180 ms 139164 KB Output is correct
69 Correct 135 ms 135100 KB Output is correct
70 Correct 133 ms 135164 KB Output is correct
71 Correct 174 ms 139128 KB Output is correct
72 Correct 177 ms 139128 KB Output is correct
73 Correct 175 ms 139132 KB Output is correct
74 Correct 134 ms 135032 KB Output is correct
75 Correct 141 ms 135120 KB Output is correct
76 Correct 134 ms 135160 KB Output is correct
77 Correct 147 ms 135164 KB Output is correct
78 Correct 207 ms 137716 KB Output is correct
79 Correct 189 ms 138744 KB Output is correct
80 Correct 210 ms 138744 KB Output is correct
81 Correct 180 ms 139144 KB Output is correct
82 Correct 208 ms 138656 KB Output is correct
83 Correct 197 ms 138616 KB Output is correct
84 Correct 152 ms 135148 KB Output is correct
85 Correct 140 ms 135092 KB Output is correct
86 Correct 134 ms 135132 KB Output is correct
87 Correct 140 ms 135032 KB Output is correct
88 Correct 137 ms 135160 KB Output is correct
89 Correct 134 ms 135160 KB Output is correct
90 Correct 144 ms 135164 KB Output is correct
91 Correct 154 ms 135160 KB Output is correct
92 Correct 162 ms 135132 KB Output is correct
93 Correct 165 ms 135160 KB Output is correct
94 Correct 134 ms 135160 KB Output is correct
95 Correct 135 ms 135164 KB Output is correct
96 Correct 146 ms 135208 KB Output is correct
97 Correct 163 ms 135120 KB Output is correct
98 Correct 152 ms 135260 KB Output is correct
99 Correct 144 ms 135208 KB Output is correct
100 Correct 157 ms 135124 KB Output is correct
101 Correct 142 ms 135416 KB Output is correct
102 Correct 167 ms 135416 KB Output is correct
103 Correct 237 ms 138772 KB Output is correct
104 Correct 196 ms 138776 KB Output is correct
105 Correct 203 ms 138744 KB Output is correct
106 Correct 207 ms 138616 KB Output is correct
107 Correct 202 ms 138828 KB Output is correct
108 Correct 184 ms 138744 KB Output is correct
109 Correct 215 ms 139192 KB Output is correct
110 Correct 211 ms 139064 KB Output is correct
111 Correct 250 ms 138872 KB Output is correct
112 Correct 215 ms 138760 KB Output is correct
113 Correct 195 ms 138688 KB Output is correct
114 Correct 249 ms 138744 KB Output is correct
115 Correct 204 ms 138616 KB Output is correct