답안 #280094

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
280094	2020-08-22T13:28:58 Z	ec1117	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	77 ms	17392 KB

shoes

/**
 * Description: range sum queries and point updates for $D$ dimensions
 * Source: https://codeforces.com/blog/entry/64914
 * Verification: SPOJ matsum
 * Usage: \texttt{BIT<int,10,10>} gives 2D BIT
 * Time: O((\log N)^D)
 */


#include "bits/stdc++.h"
#include "shoes.h"
using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pi;

#define pb push_back
#define mp make_pair
#define sz(v) ((int)(v).size())

const int MAXN=100001;

struct bit{
    int tree[MAXN];
    void add(int x, int v){
        for(int i=x; i<MAXN; i+=i&-i) tree[i] += v;
    }
    int query(int x){
        int ret = 0;
        for(int i=x; i; i-=i&-i) ret += tree[i];
        return ret;
    }
}bit;


int n;
vector<pi> order[MAXN];
vector<pi> calc;
ll count_swaps(vector<int> s){
    ll ret=0;
    for(int i=0;i<sz(s);i++)
        order[abs(s[i])].push_back(mp(s[i],i));
    for(int i=1;i<=MAXN;i++){
        sort(order[i].begin(), order[i].end());
        for(int j=0;j<order[i].size()/2;j++){
            int l = order[i][j].second;
            int r = order[i][j + sz(order[i])/2].second;
            if(l>r) {
                ret++;
                swap(l,r);
            }
            calc.push_back(mp(l+1,r+1));
        }
    }
    for(int i=1; i<MAXN; i++) bit.add(i, 1);
    sort(calc.begin(),calc.end());
    for(pi x:calc){
        ret += bit.query(x.second - 1) - bit.query(x.first);
        bit.add(x.second,-1);
        bit.add(x.first,-1);
    }
    return ret;
}

Compilation message

shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:46:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for(int j=0;j<order[i].size()/2;j++){
      |                     ~^~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	3072 KB	Output is correct
2	Correct	4 ms	3072 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	3072 KB	Output is correct
2	Correct	4 ms	3072 KB	Output is correct
3	Correct	4 ms	3072 KB	Output is correct
4	Correct	4 ms	3072 KB	Output is correct
5	Correct	6 ms	3112 KB	Output is correct
6	Correct	4 ms	3072 KB	Output is correct
7	Correct	4 ms	3072 KB	Output is correct
8	Correct	4 ms	3072 KB	Output is correct
9	Correct	4 ms	3072 KB	Output is correct
10	Correct	4 ms	3072 KB	Output is correct
11	Correct	4 ms	3072 KB	Output is correct
12	Correct	4 ms	3072 KB	Output is correct
13	Correct	4 ms	3072 KB	Output is correct
14	Correct	5 ms	3072 KB	Output is correct
15	Correct	4 ms	3200 KB	Output is correct
16	Correct	4 ms	3072 KB	Output is correct
17	Correct	5 ms	3072 KB	Output is correct
18	Correct	4 ms	3072 KB	Output is correct
19	Correct	4 ms	3072 KB	Output is correct
20	Correct	4 ms	3072 KB	Output is correct
21	Correct	4 ms	3072 KB	Output is correct
22	Correct	4 ms	3072 KB	Output is correct
23	Correct	5 ms	3072 KB	Output is correct
24	Correct	4 ms	3072 KB	Output is correct
25	Correct	4 ms	3072 KB	Output is correct
26	Correct	5 ms	3072 KB	Output is correct
27	Correct	5 ms	3072 KB	Output is correct
28	Correct	5 ms	3072 KB	Output is correct
29	Correct	4 ms	3072 KB	Output is correct
30	Correct	5 ms	3072 KB	Output is correct
31	Correct	4 ms	3072 KB	Output is correct
32	Correct	4 ms	3072 KB	Output is correct
33	Correct	4 ms	3072 KB	Output is correct
34	Correct	4 ms	3072 KB	Output is correct
35	Correct	4 ms	3072 KB	Output is correct
36	Correct	4 ms	3072 KB	Output is correct

Subtask #3
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	3072 KB	Output is correct
2	Correct	4 ms	3072 KB	Output is correct
3	Correct	4 ms	3072 KB	Output is correct
4	Correct	5 ms	3072 KB	Output is correct
5	Correct	4 ms	3072 KB	Output is correct
6	Correct	4 ms	3072 KB	Output is correct
7	Correct	4 ms	3072 KB	Output is correct
8	Correct	4 ms	3072 KB	Output is correct
9	Correct	4 ms	3072 KB	Output is correct
10	Correct	5 ms	3072 KB	Output is correct
11	Correct	4 ms	3072 KB	Output is correct
12	Correct	4 ms	3072 KB	Output is correct
13	Correct	4 ms	3072 KB	Output is correct
14	Correct	5 ms	3072 KB	Output is correct
15	Correct	4 ms	3072 KB	Output is correct
16	Correct	4 ms	3072 KB	Output is correct
17	Correct	4 ms	3072 KB	Output is correct
18	Correct	4 ms	3072 KB	Output is correct
19	Correct	5 ms	3072 KB	Output is correct
20	Correct	10 ms	3580 KB	Output is correct
21	Correct	10 ms	3580 KB	Output is correct
22	Runtime error	69 ms	15976 KB	Execution killed with signal 11
23	Halted	0 ms	0 KB	-

Subtask #4
0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	3072 KB	Output is correct
2	Correct	4 ms	3072 KB	Output is correct
3	Correct	4 ms	3072 KB	Output is correct
4	Correct	4 ms	3072 KB	Output is correct
5	Runtime error	77 ms	17392 KB	Execution killed with signal 11
6	Halted	0 ms	0 KB	-

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	3072 KB	Output is correct
2	Correct	4 ms	3072 KB	Output is correct
3	Correct	4 ms	3072 KB	Output is correct
4	Correct	4 ms	3072 KB	Output is correct
5	Correct	6 ms	3112 KB	Output is correct
6	Correct	4 ms	3072 KB	Output is correct
7	Correct	4 ms	3072 KB	Output is correct
8	Correct	4 ms	3072 KB	Output is correct
9	Correct	4 ms	3072 KB	Output is correct
10	Correct	4 ms	3072 KB	Output is correct
11	Correct	4 ms	3072 KB	Output is correct
12	Correct	4 ms	3072 KB	Output is correct
13	Correct	4 ms	3072 KB	Output is correct
14	Correct	5 ms	3072 KB	Output is correct
15	Correct	4 ms	3200 KB	Output is correct
16	Correct	4 ms	3072 KB	Output is correct
17	Correct	5 ms	3072 KB	Output is correct
18	Correct	4 ms	3072 KB	Output is correct
19	Correct	4 ms	3072 KB	Output is correct
20	Correct	4 ms	3072 KB	Output is correct
21	Correct	4 ms	3072 KB	Output is correct
22	Correct	4 ms	3072 KB	Output is correct
23	Correct	5 ms	3072 KB	Output is correct
24	Correct	4 ms	3072 KB	Output is correct
25	Correct	4 ms	3072 KB	Output is correct
26	Correct	5 ms	3072 KB	Output is correct
27	Correct	5 ms	3072 KB	Output is correct
28	Correct	5 ms	3072 KB	Output is correct
29	Correct	4 ms	3072 KB	Output is correct
30	Correct	5 ms	3072 KB	Output is correct
31	Correct	4 ms	3072 KB	Output is correct
32	Correct	4 ms	3072 KB	Output is correct
33	Correct	4 ms	3072 KB	Output is correct
34	Correct	4 ms	3072 KB	Output is correct
35	Correct	4 ms	3072 KB	Output is correct
36	Correct	4 ms	3072 KB	Output is correct
37	Correct	4 ms	3072 KB	Output is correct
38	Correct	4 ms	3072 KB	Output is correct
39	Correct	4 ms	3072 KB	Output is correct
40	Correct	4 ms	3072 KB	Output is correct
41	Correct	5 ms	3072 KB	Output is correct
42	Correct	5 ms	3072 KB	Output is correct
43	Correct	5 ms	3072 KB	Output is correct
44	Correct	5 ms	3072 KB	Output is correct
45	Correct	5 ms	3072 KB	Output is correct
46	Correct	5 ms	3072 KB	Output is correct
47	Correct	6 ms	3072 KB	Output is correct
48	Correct	6 ms	3072 KB	Output is correct
49	Correct	5 ms	3072 KB	Output is correct
50	Correct	5 ms	3072 KB	Output is correct
51	Correct	4 ms	3072 KB	Output is correct
52	Correct	5 ms	3072 KB	Output is correct

Subtask #6
0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	3072 KB	Output is correct
2	Correct	4 ms	3072 KB	Output is correct
3	Correct	4 ms	3072 KB	Output is correct
4	Correct	4 ms	3072 KB	Output is correct
5	Correct	6 ms	3112 KB	Output is correct
6	Correct	4 ms	3072 KB	Output is correct
7	Correct	4 ms	3072 KB	Output is correct
8	Correct	4 ms	3072 KB	Output is correct
9	Correct	4 ms	3072 KB	Output is correct
10	Correct	4 ms	3072 KB	Output is correct
11	Correct	4 ms	3072 KB	Output is correct
12	Correct	4 ms	3072 KB	Output is correct
13	Correct	4 ms	3072 KB	Output is correct
14	Correct	5 ms	3072 KB	Output is correct
15	Correct	4 ms	3200 KB	Output is correct
16	Correct	4 ms	3072 KB	Output is correct
17	Correct	5 ms	3072 KB	Output is correct
18	Correct	4 ms	3072 KB	Output is correct
19	Correct	4 ms	3072 KB	Output is correct
20	Correct	4 ms	3072 KB	Output is correct
21	Correct	4 ms	3072 KB	Output is correct
22	Correct	4 ms	3072 KB	Output is correct
23	Correct	5 ms	3072 KB	Output is correct
24	Correct	4 ms	3072 KB	Output is correct
25	Correct	4 ms	3072 KB	Output is correct
26	Correct	5 ms	3072 KB	Output is correct
27	Correct	5 ms	3072 KB	Output is correct
28	Correct	5 ms	3072 KB	Output is correct
29	Correct	4 ms	3072 KB	Output is correct
30	Correct	5 ms	3072 KB	Output is correct
31	Correct	4 ms	3072 KB	Output is correct
32	Correct	4 ms	3072 KB	Output is correct
33	Correct	4 ms	3072 KB	Output is correct
34	Correct	4 ms	3072 KB	Output is correct
35	Correct	4 ms	3072 KB	Output is correct
36	Correct	4 ms	3072 KB	Output is correct
37	Correct	4 ms	3072 KB	Output is correct
38	Correct	5 ms	3072 KB	Output is correct
39	Correct	4 ms	3072 KB	Output is correct
40	Correct	4 ms	3072 KB	Output is correct
41	Correct	4 ms	3072 KB	Output is correct
42	Correct	4 ms	3072 KB	Output is correct
43	Correct	4 ms	3072 KB	Output is correct
44	Correct	5 ms	3072 KB	Output is correct
45	Correct	4 ms	3072 KB	Output is correct
46	Correct	4 ms	3072 KB	Output is correct
47	Correct	4 ms	3072 KB	Output is correct
48	Correct	5 ms	3072 KB	Output is correct
49	Correct	4 ms	3072 KB	Output is correct
50	Correct	4 ms	3072 KB	Output is correct
51	Correct	4 ms	3072 KB	Output is correct
52	Correct	4 ms	3072 KB	Output is correct
53	Correct	5 ms	3072 KB	Output is correct
54	Correct	10 ms	3580 KB	Output is correct
55	Correct	10 ms	3580 KB	Output is correct
56	Runtime error	69 ms	15976 KB	Execution killed with signal 11
57	Halted	0 ms	0 KB	-

답안 #280094

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 20.0 / 20.0

Subtask #3 0 / 20.0

Subtask #4 0 / 15.0

Subtask #5 20.0 / 20.0

Subtask #6 0 / 15.0

Subtask #1
10.0 / 10.0

Subtask #2
20.0 / 20.0

Subtask #3
0 / 20.0

Subtask #4
0 / 15.0

Subtask #5
20.0 / 20.0

Subtask #6
0 / 15.0