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답안 #221773

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
221773 2020-04-11T00:15:14 Z mathking1021 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 278 ms 275708 KB 
#include "shoes.h"
#include <iostream>
#include <queue>

typedef long long ll;
using namespace std;

const ll M = 200000;
queue<ll> qu[400005];
ll d[200005];
ll n;

ll f(ll p)
{
    ll re = 0;
    p++;
    while(p > 0)
    {
        re += d[p];
        p -= (p & (-p));
    }
    return re;
}

void g(ll p)
{
    p++;
    while(p <= n)
    {
        d[p]--;
        p += (p & (-p));
    }
}

long long count_swaps(std::vector<int> s)
{
    ll cnt = 0;
    n = s.size();
    for(ll i = 0; i < s.size(); i++)
    {
        qu[s[i] + M].push(i);
        d[i + 1] = ((i + 1) & (-(i + 1)));
    }
    for(ll i = 0; i < s.size(); i++)
    {
        if(qu[M + s[i]].front() != i) continue;
        ll j = qu[M - s[i]].front();
        qu[M - s[i]].pop();
        qu[M + s[i]].pop();
        cnt += f(j) - f(i) - 1;
        g(i), g(j);
        if(s[i] > 0) cnt++;
    }
    return cnt;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:39:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ll i = 0; i < s.size(); i++)
                   ~~^~~~~~~~~~
shoes.cpp:44:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ll i = 0; i < s.size(); i++)
                   ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 174 ms 269560 KB Output is correct
2 Correct 181 ms 269692 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 174 ms 269560 KB Output is correct
2 Correct 181 ms 269692 KB Output is correct
3 Correct 175 ms 269560 KB Output is correct
4 Correct 174 ms 269560 KB Output is correct
5 Correct 176 ms 269560 KB Output is correct
6 Correct 179 ms 269560 KB Output is correct
7 Correct 174 ms 269560 KB Output is correct
8 Correct 175 ms 269560 KB Output is correct
9 Correct 174 ms 269756 KB Output is correct
10 Correct 178 ms 269624 KB Output is correct
11 Correct 176 ms 269564 KB Output is correct
12 Correct 180 ms 269560 KB Output is correct
13 Correct 180 ms 269560 KB Output is correct
14 Correct 176 ms 269560 KB Output is correct
15 Correct 175 ms 269592 KB Output is correct
16 Correct 177 ms 269688 KB Output is correct
17 Correct 172 ms 269560 KB Output is correct
18 Correct 180 ms 269560 KB Output is correct
19 Correct 179 ms 269560 KB Output is correct
20 Correct 173 ms 269560 KB Output is correct
21 Correct 176 ms 269560 KB Output is correct
22 Correct 176 ms 269560 KB Output is correct
23 Correct 182 ms 269688 KB Output is correct
24 Correct 176 ms 269560 KB Output is correct
25 Correct 172 ms 269560 KB Output is correct
26 Correct 175 ms 269560 KB Output is correct
27 Correct 176 ms 269560 KB Output is correct
28 Correct 179 ms 269560 KB Output is correct
29 Correct 178 ms 269560 KB Output is correct
30 Correct 180 ms 269560 KB Output is correct
31 Correct 175 ms 269564 KB Output is correct
32 Correct 176 ms 269560 KB Output is correct
33 Correct 178 ms 269560 KB Output is correct
34 Correct 175 ms 269560 KB Output is correct
35 Correct 173 ms 269560 KB Output is correct
36 Correct 177 ms 269608 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 174 ms 269560 KB Output is correct
2 Correct 181 ms 269692 KB Output is correct
3 Correct 184 ms 269560 KB Output is correct
4 Correct 176 ms 269620 KB Output is correct
5 Correct 175 ms 269560 KB Output is correct
6 Correct 183 ms 269560 KB Output is correct
7 Correct 178 ms 269560 KB Output is correct
8 Correct 177 ms 269560 KB Output is correct
9 Correct 177 ms 269560 KB Output is correct
10 Correct 178 ms 269748 KB Output is correct
11 Correct 174 ms 269560 KB Output is correct
12 Correct 175 ms 269560 KB Output is correct
13 Correct 179 ms 269560 KB Output is correct
14 Correct 174 ms 269688 KB Output is correct
15 Correct 180 ms 269560 KB Output is correct
16 Correct 179 ms 269564 KB Output is correct
17 Correct 172 ms 269536 KB Output is correct
18 Correct 187 ms 269560 KB Output is correct
19 Correct 186 ms 269692 KB Output is correct
20 Correct 192 ms 270104 KB Output is correct
21 Correct 185 ms 270096 KB Output is correct
22 Correct 219 ms 274424 KB Output is correct
23 Correct 220 ms 274424 KB Output is correct
24 Correct 220 ms 274424 KB Output is correct
25 Correct 215 ms 274424 KB Output is correct
26 Correct 222 ms 274424 KB Output is correct
27 Correct 217 ms 274424 KB Output is correct
28 Correct 222 ms 274424 KB Output is correct
29 Correct 220 ms 274552 KB Output is correct
30 Correct 226 ms 274424 KB Output is correct
31 Correct 230 ms 275576 KB Output is correct
32 Correct 222 ms 275704 KB Output is correct
33 Correct 217 ms 275448 KB Output is correct
34 Correct 228 ms 275704 KB Output is correct
35 Correct 174 ms 269560 KB Output is correct
36 Correct 176 ms 269564 KB Output is correct
37 Correct 223 ms 275704 KB Output is correct
38 Correct 221 ms 275704 KB Output is correct
39 Correct 223 ms 275704 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 179 ms 269560 KB Output is correct
2 Correct 177 ms 269580 KB Output is correct
3 Correct 174 ms 269560 KB Output is correct
4 Correct 174 ms 269560 KB Output is correct
5 Correct 257 ms 272876 KB Output is correct
6 Correct 233 ms 274040 KB Output is correct
7 Correct 264 ms 273912 KB Output is correct
8 Correct 229 ms 275704 KB Output is correct
9 Correct 278 ms 273916 KB Output is correct
10 Correct 258 ms 274040 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 174 ms 269560 KB Output is correct
2 Correct 181 ms 269692 KB Output is correct
3 Correct 175 ms 269560 KB Output is correct
4 Correct 174 ms 269560 KB Output is correct
5 Correct 176 ms 269560 KB Output is correct
6 Correct 179 ms 269560 KB Output is correct
7 Correct 174 ms 269560 KB Output is correct
8 Correct 175 ms 269560 KB Output is correct
9 Correct 174 ms 269756 KB Output is correct
10 Correct 178 ms 269624 KB Output is correct
11 Correct 176 ms 269564 KB Output is correct
12 Correct 180 ms 269560 KB Output is correct
13 Correct 180 ms 269560 KB Output is correct
14 Correct 176 ms 269560 KB Output is correct
15 Correct 175 ms 269592 KB Output is correct
16 Correct 177 ms 269688 KB Output is correct
17 Correct 172 ms 269560 KB Output is correct
18 Correct 180 ms 269560 KB Output is correct
19 Correct 179 ms 269560 KB Output is correct
20 Correct 173 ms 269560 KB Output is correct
21 Correct 176 ms 269560 KB Output is correct
22 Correct 176 ms 269560 KB Output is correct
23 Correct 182 ms 269688 KB Output is correct
24 Correct 176 ms 269560 KB Output is correct
25 Correct 172 ms 269560 KB Output is correct
26 Correct 175 ms 269560 KB Output is correct
27 Correct 176 ms 269560 KB Output is correct
28 Correct 179 ms 269560 KB Output is correct
29 Correct 178 ms 269560 KB Output is correct
30 Correct 180 ms 269560 KB Output is correct
31 Correct 175 ms 269564 KB Output is correct
32 Correct 176 ms 269560 KB Output is correct
33 Correct 178 ms 269560 KB Output is correct
34 Correct 175 ms 269560 KB Output is correct
35 Correct 173 ms 269560 KB Output is correct
36 Correct 177 ms 269608 KB Output is correct
37 Correct 172 ms 269536 KB Output is correct
38 Correct 175 ms 269608 KB Output is correct
39 Correct 177 ms 269560 KB Output is correct
40 Correct 178 ms 269560 KB Output is correct
41 Correct 176 ms 269688 KB Output is correct
42 Correct 178 ms 269560 KB Output is correct
43 Correct 175 ms 269688 KB Output is correct
44 Correct 177 ms 269564 KB Output is correct
45 Correct 173 ms 269560 KB Output is correct
46 Correct 179 ms 269740 KB Output is correct
47 Correct 175 ms 269688 KB Output is correct
48 Correct 176 ms 269560 KB Output is correct
49 Correct 174 ms 269560 KB Output is correct
50 Correct 187 ms 269692 KB Output is correct
51 Correct 184 ms 269688 KB Output is correct
52 Correct 176 ms 269560 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 174 ms 269560 KB Output is correct
2 Correct 181 ms 269692 KB Output is correct
3 Correct 175 ms 269560 KB Output is correct
4 Correct 174 ms 269560 KB Output is correct
5 Correct 176 ms 269560 KB Output is correct
6 Correct 179 ms 269560 KB Output is correct
7 Correct 174 ms 269560 KB Output is correct
8 Correct 175 ms 269560 KB Output is correct
9 Correct 174 ms 269756 KB Output is correct
10 Correct 178 ms 269624 KB Output is correct
11 Correct 176 ms 269564 KB Output is correct
12 Correct 180 ms 269560 KB Output is correct
13 Correct 180 ms 269560 KB Output is correct
14 Correct 176 ms 269560 KB Output is correct
15 Correct 175 ms 269592 KB Output is correct
16 Correct 177 ms 269688 KB Output is correct
17 Correct 172 ms 269560 KB Output is correct
18 Correct 180 ms 269560 KB Output is correct
19 Correct 179 ms 269560 KB Output is correct
20 Correct 173 ms 269560 KB Output is correct
21 Correct 176 ms 269560 KB Output is correct
22 Correct 176 ms 269560 KB Output is correct
23 Correct 182 ms 269688 KB Output is correct
24 Correct 176 ms 269560 KB Output is correct
25 Correct 172 ms 269560 KB Output is correct
26 Correct 175 ms 269560 KB Output is correct
27 Correct 176 ms 269560 KB Output is correct
28 Correct 179 ms 269560 KB Output is correct
29 Correct 178 ms 269560 KB Output is correct
30 Correct 180 ms 269560 KB Output is correct
31 Correct 175 ms 269564 KB Output is correct
32 Correct 176 ms 269560 KB Output is correct
33 Correct 178 ms 269560 KB Output is correct
34 Correct 175 ms 269560 KB Output is correct
35 Correct 173 ms 269560 KB Output is correct
36 Correct 177 ms 269608 KB Output is correct
37 Correct 184 ms 269560 KB Output is correct
38 Correct 176 ms 269620 KB Output is correct
39 Correct 175 ms 269560 KB Output is correct
40 Correct 183 ms 269560 KB Output is correct
41 Correct 178 ms 269560 KB Output is correct
42 Correct 177 ms 269560 KB Output is correct
43 Correct 177 ms 269560 KB Output is correct
44 Correct 178 ms 269748 KB Output is correct
45 Correct 174 ms 269560 KB Output is correct
46 Correct 175 ms 269560 KB Output is correct
47 Correct 179 ms 269560 KB Output is correct
48 Correct 174 ms 269688 KB Output is correct
49 Correct 180 ms 269560 KB Output is correct
50 Correct 179 ms 269564 KB Output is correct
51 Correct 172 ms 269536 KB Output is correct
52 Correct 187 ms 269560 KB Output is correct
53 Correct 186 ms 269692 KB Output is correct
54 Correct 192 ms 270104 KB Output is correct
55 Correct 185 ms 270096 KB Output is correct
56 Correct 219 ms 274424 KB Output is correct
57 Correct 220 ms 274424 KB Output is correct
58 Correct 220 ms 274424 KB Output is correct
59 Correct 215 ms 274424 KB Output is correct
60 Correct 222 ms 274424 KB Output is correct
61 Correct 217 ms 274424 KB Output is correct
62 Correct 222 ms 274424 KB Output is correct
63 Correct 220 ms 274552 KB Output is correct
64 Correct 226 ms 274424 KB Output is correct
65 Correct 230 ms 275576 KB Output is correct
66 Correct 222 ms 275704 KB Output is correct
67 Correct 217 ms 275448 KB Output is correct
68 Correct 228 ms 275704 KB Output is correct
69 Correct 174 ms 269560 KB Output is correct
70 Correct 176 ms 269564 KB Output is correct
71 Correct 223 ms 275704 KB Output is correct
72 Correct 221 ms 275704 KB Output is correct
73 Correct 223 ms 275704 KB Output is correct
74 Correct 179 ms 269560 KB Output is correct
75 Correct 177 ms 269580 KB Output is correct
76 Correct 174 ms 269560 KB Output is correct
77 Correct 174 ms 269560 KB Output is correct
78 Correct 257 ms 272876 KB Output is correct
79 Correct 233 ms 274040 KB Output is correct
80 Correct 264 ms 273912 KB Output is correct
81 Correct 229 ms 275704 KB Output is correct
82 Correct 278 ms 273916 KB Output is correct
83 Correct 258 ms 274040 KB Output is correct
84 Correct 172 ms 269536 KB Output is correct
85 Correct 175 ms 269608 KB Output is correct
86 Correct 177 ms 269560 KB Output is correct
87 Correct 178 ms 269560 KB Output is correct
88 Correct 176 ms 269688 KB Output is correct
89 Correct 178 ms 269560 KB Output is correct
90 Correct 175 ms 269688 KB Output is correct
91 Correct 177 ms 269564 KB Output is correct
92 Correct 173 ms 269560 KB Output is correct
93 Correct 179 ms 269740 KB Output is correct
94 Correct 175 ms 269688 KB Output is correct
95 Correct 176 ms 269560 KB Output is correct
96 Correct 174 ms 269560 KB Output is correct
97 Correct 187 ms 269692 KB Output is correct
98 Correct 184 ms 269688 KB Output is correct
99 Correct 176 ms 269560 KB Output is correct
100 Correct 180 ms 269728 KB Output is correct
101 Correct 183 ms 270048 KB Output is correct
102 Correct 180 ms 269944 KB Output is correct
103 Correct 276 ms 274016 KB Output is correct
104 Correct 263 ms 273912 KB Output is correct
105 Correct 263 ms 273912 KB Output is correct
106 Correct 254 ms 274040 KB Output is correct
107 Correct 240 ms 273912 KB Output is correct
108 Correct 251 ms 273912 KB Output is correct
109 Correct 221 ms 275708 KB Output is correct
110 Correct 225 ms 275576 KB Output is correct
111 Correct 264 ms 273912 KB Output is correct
112 Correct 266 ms 274040 KB Output is correct
113 Correct 237 ms 273912 KB Output is correct
114 Correct 269 ms 274048 KB Output is correct
115 Correct 259 ms 273912 KB Output is correct