답안 #424741

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
424741	2021-06-12T09:32:36 Z	alishahali1382	Arranging Shoes (IOI19_shoes)	C++14	100 / 100	153 ms	139872 KB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
#pragma GCC optimize("O2")
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define debug(x) {cerr<<#x<<"="<<x<<"\n";}
#define debug2(x, y) {cerr<<"{"<<#x<<", "<<#y<<"}={"<<x<<", "<<y<<"}\n";}
#define debugp(p) {cerr<<#p<<"={"<<p.first<<", "<<p.second<<"}\n";}
#define debugv(abcd) {cerr<<#abcd<<": ";for (auto dcba:abcd) cerr<<dcba<<", ";cerr<<"\n";}
#define pb push_back
#define SZ(x) ((int)x.size())
#define all(x) x.begin(), x.end()

const int inf=1000001000; // 1e9
const ll INF=10000000010000000; // 1e16
const int mod=1000000007;
const int MAXN=200010, LOG=19;

ll ans; // :(
int n, m, k;
int A[MAXN], fen[MAXN];
queue<int> vec[MAXN];

inline void add(int pos, int val){
	for (; pos<MAXN; pos+=pos&-pos) fen[pos]+=val;
}
inline int get(int pos){
	int res=0;
	for (; pos; pos-=pos&-pos) res+=fen[pos];
	return res;
}

ll count_swaps(vector<int> S){
	n=SZ(S);
	for (int i=0; i<n; i++){
		int x=S[i], y=1;
		if (x<0) x=-x, y=-1;
		if (vec[x].size() && S[vec[x].front()]*y<0){
			A[i]=A[vec[x].front()]=m++;
			vec[x].pop();
		}
		else vec[x].push(i);
	}
	for (int i=0; i<n; i++) A[i]=2*A[i]+(S[i]>0)+1;
	for (int i=n-1; ~i; i--){
		ans+=get(A[i]);
		add(A[i], +1);
	}
	return ans;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	116 ms	134920 KB	Output is correct
2	Correct	82 ms	134836 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	116 ms	134920 KB	Output is correct
2	Correct	82 ms	134836 KB	Output is correct
3	Correct	85 ms	134960 KB	Output is correct
4	Correct	88 ms	134856 KB	Output is correct
5	Correct	86 ms	134896 KB	Output is correct
6	Correct	81 ms	134892 KB	Output is correct
7	Correct	82 ms	134860 KB	Output is correct
8	Correct	96 ms	134876 KB	Output is correct
9	Correct	101 ms	134908 KB	Output is correct
10	Correct	92 ms	134912 KB	Output is correct
11	Correct	92 ms	134912 KB	Output is correct
12	Correct	99 ms	134908 KB	Output is correct
13	Correct	94 ms	134956 KB	Output is correct
14	Correct	86 ms	134876 KB	Output is correct
15	Correct	89 ms	134952 KB	Output is correct
16	Correct	91 ms	134852 KB	Output is correct
17	Correct	95 ms	134896 KB	Output is correct
18	Correct	89 ms	134964 KB	Output is correct
19	Correct	95 ms	135040 KB	Output is correct
20	Correct	84 ms	134944 KB	Output is correct
21	Correct	88 ms	134852 KB	Output is correct
22	Correct	89 ms	134840 KB	Output is correct
23	Correct	88 ms	134836 KB	Output is correct
24	Correct	89 ms	134852 KB	Output is correct
25	Correct	88 ms	134868 KB	Output is correct
26	Correct	97 ms	134912 KB	Output is correct
27	Correct	89 ms	134888 KB	Output is correct
28	Correct	99 ms	134928 KB	Output is correct
29	Correct	88 ms	134964 KB	Output is correct
30	Correct	90 ms	134944 KB	Output is correct
31	Correct	92 ms	134852 KB	Output is correct
32	Correct	87 ms	134932 KB	Output is correct
33	Correct	85 ms	134936 KB	Output is correct
34	Correct	87 ms	134952 KB	Output is correct
35	Correct	90 ms	134920 KB	Output is correct
36	Correct	90 ms	134948 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	116 ms	134920 KB	Output is correct
2	Correct	82 ms	134836 KB	Output is correct
3	Correct	95 ms	134928 KB	Output is correct
4	Correct	92 ms	134856 KB	Output is correct
5	Correct	88 ms	134908 KB	Output is correct
6	Correct	95 ms	134840 KB	Output is correct
7	Correct	96 ms	134924 KB	Output is correct
8	Correct	85 ms	134880 KB	Output is correct
9	Correct	94 ms	134876 KB	Output is correct
10	Correct	88 ms	134852 KB	Output is correct
11	Correct	88 ms	134844 KB	Output is correct
12	Correct	93 ms	134848 KB	Output is correct
13	Correct	91 ms	134916 KB	Output is correct
14	Correct	91 ms	134884 KB	Output is correct
15	Correct	89 ms	134840 KB	Output is correct
16	Correct	87 ms	134852 KB	Output is correct
17	Correct	95 ms	134912 KB	Output is correct
18	Correct	89 ms	134864 KB	Output is correct
19	Correct	81 ms	134892 KB	Output is correct
20	Correct	99 ms	135208 KB	Output is correct
21	Correct	89 ms	135216 KB	Output is correct
22	Correct	125 ms	137984 KB	Output is correct
23	Correct	123 ms	139212 KB	Output is correct
24	Correct	122 ms	139264 KB	Output is correct
25	Correct	124 ms	139524 KB	Output is correct
26	Correct	122 ms	139300 KB	Output is correct
27	Correct	115 ms	139136 KB	Output is correct
28	Correct	123 ms	139700 KB	Output is correct
29	Correct	127 ms	139712 KB	Output is correct
30	Correct	124 ms	139872 KB	Output is correct
31	Correct	122 ms	139332 KB	Output is correct
32	Correct	125 ms	139636 KB	Output is correct
33	Correct	124 ms	139488 KB	Output is correct
34	Correct	124 ms	139712 KB	Output is correct
35	Correct	88 ms	134852 KB	Output is correct
36	Correct	88 ms	134920 KB	Output is correct
37	Correct	124 ms	139716 KB	Output is correct
38	Correct	124 ms	139732 KB	Output is correct
39	Correct	120 ms	139688 KB	Output is correct

Subtask #4
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	90 ms	134988 KB	Output is correct
2	Correct	87 ms	134868 KB	Output is correct
3	Correct	84 ms	134864 KB	Output is correct
4	Correct	81 ms	134920 KB	Output is correct
5	Correct	140 ms	138012 KB	Output is correct
6	Correct	132 ms	139332 KB	Output is correct
7	Correct	142 ms	139224 KB	Output is correct
8	Correct	130 ms	139660 KB	Output is correct
9	Correct	144 ms	139200 KB	Output is correct
10	Correct	142 ms	139212 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	116 ms	134920 KB	Output is correct
2	Correct	82 ms	134836 KB	Output is correct
3	Correct	85 ms	134960 KB	Output is correct
4	Correct	88 ms	134856 KB	Output is correct
5	Correct	86 ms	134896 KB	Output is correct
6	Correct	81 ms	134892 KB	Output is correct
7	Correct	82 ms	134860 KB	Output is correct
8	Correct	96 ms	134876 KB	Output is correct
9	Correct	101 ms	134908 KB	Output is correct
10	Correct	92 ms	134912 KB	Output is correct
11	Correct	92 ms	134912 KB	Output is correct
12	Correct	99 ms	134908 KB	Output is correct
13	Correct	94 ms	134956 KB	Output is correct
14	Correct	86 ms	134876 KB	Output is correct
15	Correct	89 ms	134952 KB	Output is correct
16	Correct	91 ms	134852 KB	Output is correct
17	Correct	95 ms	134896 KB	Output is correct
18	Correct	89 ms	134964 KB	Output is correct
19	Correct	95 ms	135040 KB	Output is correct
20	Correct	84 ms	134944 KB	Output is correct
21	Correct	88 ms	134852 KB	Output is correct
22	Correct	89 ms	134840 KB	Output is correct
23	Correct	88 ms	134836 KB	Output is correct
24	Correct	89 ms	134852 KB	Output is correct
25	Correct	88 ms	134868 KB	Output is correct
26	Correct	97 ms	134912 KB	Output is correct
27	Correct	89 ms	134888 KB	Output is correct
28	Correct	99 ms	134928 KB	Output is correct
29	Correct	88 ms	134964 KB	Output is correct
30	Correct	90 ms	134944 KB	Output is correct
31	Correct	92 ms	134852 KB	Output is correct
32	Correct	87 ms	134932 KB	Output is correct
33	Correct	85 ms	134936 KB	Output is correct
34	Correct	87 ms	134952 KB	Output is correct
35	Correct	90 ms	134920 KB	Output is correct
36	Correct	90 ms	134948 KB	Output is correct
37	Correct	86 ms	134920 KB	Output is correct
38	Correct	86 ms	134904 KB	Output is correct
39	Correct	90 ms	134852 KB	Output is correct
40	Correct	87 ms	134864 KB	Output is correct
41	Correct	87 ms	134916 KB	Output is correct
42	Correct	89 ms	134852 KB	Output is correct
43	Correct	85 ms	134880 KB	Output is correct
44	Correct	84 ms	134920 KB	Output is correct
45	Correct	83 ms	134884 KB	Output is correct
46	Correct	85 ms	134888 KB	Output is correct
47	Correct	88 ms	134884 KB	Output is correct
48	Correct	88 ms	134852 KB	Output is correct
49	Correct	82 ms	134880 KB	Output is correct
50	Correct	85 ms	134900 KB	Output is correct
51	Correct	84 ms	134980 KB	Output is correct
52	Correct	85 ms	135024 KB	Output is correct

Subtask #6
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	116 ms	134920 KB	Output is correct
2	Correct	82 ms	134836 KB	Output is correct
3	Correct	85 ms	134960 KB	Output is correct
4	Correct	88 ms	134856 KB	Output is correct
5	Correct	86 ms	134896 KB	Output is correct
6	Correct	81 ms	134892 KB	Output is correct
7	Correct	82 ms	134860 KB	Output is correct
8	Correct	96 ms	134876 KB	Output is correct
9	Correct	101 ms	134908 KB	Output is correct
10	Correct	92 ms	134912 KB	Output is correct
11	Correct	92 ms	134912 KB	Output is correct
12	Correct	99 ms	134908 KB	Output is correct
13	Correct	94 ms	134956 KB	Output is correct
14	Correct	86 ms	134876 KB	Output is correct
15	Correct	89 ms	134952 KB	Output is correct
16	Correct	91 ms	134852 KB	Output is correct
17	Correct	95 ms	134896 KB	Output is correct
18	Correct	89 ms	134964 KB	Output is correct
19	Correct	95 ms	135040 KB	Output is correct
20	Correct	84 ms	134944 KB	Output is correct
21	Correct	88 ms	134852 KB	Output is correct
22	Correct	89 ms	134840 KB	Output is correct
23	Correct	88 ms	134836 KB	Output is correct
24	Correct	89 ms	134852 KB	Output is correct
25	Correct	88 ms	134868 KB	Output is correct
26	Correct	97 ms	134912 KB	Output is correct
27	Correct	89 ms	134888 KB	Output is correct
28	Correct	99 ms	134928 KB	Output is correct
29	Correct	88 ms	134964 KB	Output is correct
30	Correct	90 ms	134944 KB	Output is correct
31	Correct	92 ms	134852 KB	Output is correct
32	Correct	87 ms	134932 KB	Output is correct
33	Correct	85 ms	134936 KB	Output is correct
34	Correct	87 ms	134952 KB	Output is correct
35	Correct	90 ms	134920 KB	Output is correct
36	Correct	90 ms	134948 KB	Output is correct
37	Correct	95 ms	134928 KB	Output is correct
38	Correct	92 ms	134856 KB	Output is correct
39	Correct	88 ms	134908 KB	Output is correct
40	Correct	95 ms	134840 KB	Output is correct
41	Correct	96 ms	134924 KB	Output is correct
42	Correct	85 ms	134880 KB	Output is correct
43	Correct	94 ms	134876 KB	Output is correct
44	Correct	88 ms	134852 KB	Output is correct
45	Correct	88 ms	134844 KB	Output is correct
46	Correct	93 ms	134848 KB	Output is correct
47	Correct	91 ms	134916 KB	Output is correct
48	Correct	91 ms	134884 KB	Output is correct
49	Correct	89 ms	134840 KB	Output is correct
50	Correct	87 ms	134852 KB	Output is correct
51	Correct	95 ms	134912 KB	Output is correct
52	Correct	89 ms	134864 KB	Output is correct
53	Correct	81 ms	134892 KB	Output is correct
54	Correct	99 ms	135208 KB	Output is correct
55	Correct	89 ms	135216 KB	Output is correct
56	Correct	125 ms	137984 KB	Output is correct
57	Correct	123 ms	139212 KB	Output is correct
58	Correct	122 ms	139264 KB	Output is correct
59	Correct	124 ms	139524 KB	Output is correct
60	Correct	122 ms	139300 KB	Output is correct
61	Correct	115 ms	139136 KB	Output is correct
62	Correct	123 ms	139700 KB	Output is correct
63	Correct	127 ms	139712 KB	Output is correct
64	Correct	124 ms	139872 KB	Output is correct
65	Correct	122 ms	139332 KB	Output is correct
66	Correct	125 ms	139636 KB	Output is correct
67	Correct	124 ms	139488 KB	Output is correct
68	Correct	124 ms	139712 KB	Output is correct
69	Correct	88 ms	134852 KB	Output is correct
70	Correct	88 ms	134920 KB	Output is correct
71	Correct	124 ms	139716 KB	Output is correct
72	Correct	124 ms	139732 KB	Output is correct
73	Correct	120 ms	139688 KB	Output is correct
74	Correct	90 ms	134988 KB	Output is correct
75	Correct	87 ms	134868 KB	Output is correct
76	Correct	84 ms	134864 KB	Output is correct
77	Correct	81 ms	134920 KB	Output is correct
78	Correct	140 ms	138012 KB	Output is correct
79	Correct	132 ms	139332 KB	Output is correct
80	Correct	142 ms	139224 KB	Output is correct
81	Correct	130 ms	139660 KB	Output is correct
82	Correct	144 ms	139200 KB	Output is correct
83	Correct	142 ms	139212 KB	Output is correct
84	Correct	86 ms	134920 KB	Output is correct
85	Correct	86 ms	134904 KB	Output is correct
86	Correct	90 ms	134852 KB	Output is correct
87	Correct	87 ms	134864 KB	Output is correct
88	Correct	87 ms	134916 KB	Output is correct
89	Correct	89 ms	134852 KB	Output is correct
90	Correct	85 ms	134880 KB	Output is correct
91	Correct	84 ms	134920 KB	Output is correct
92	Correct	83 ms	134884 KB	Output is correct
93	Correct	85 ms	134888 KB	Output is correct
94	Correct	88 ms	134884 KB	Output is correct
95	Correct	88 ms	134852 KB	Output is correct
96	Correct	82 ms	134880 KB	Output is correct
97	Correct	85 ms	134900 KB	Output is correct
98	Correct	84 ms	134980 KB	Output is correct
99	Correct	85 ms	135024 KB	Output is correct
100	Correct	81 ms	134884 KB	Output is correct
101	Correct	89 ms	135356 KB	Output is correct
102	Correct	98 ms	135336 KB	Output is correct
103	Correct	148 ms	139232 KB	Output is correct
104	Correct	136 ms	139296 KB	Output is correct
105	Correct	129 ms	139244 KB	Output is correct
106	Correct	143 ms	139204 KB	Output is correct
107	Correct	129 ms	139256 KB	Output is correct
108	Correct	138 ms	139300 KB	Output is correct
109	Correct	117 ms	139664 KB	Output is correct
110	Correct	128 ms	139636 KB	Output is correct
111	Correct	138 ms	139236 KB	Output is correct
112	Correct	153 ms	139204 KB	Output is correct
113	Correct	140 ms	139252 KB	Output is correct
114	Correct	146 ms	139268 KB	Output is correct
115	Correct	141 ms	139304 KB	Output is correct

답안 #424741

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 20.0 / 20.0

Subtask #3 20.0 / 20.0

Subtask #4 15.0 / 15.0

Subtask #5 20.0 / 20.0

Subtask #6 15.0 / 15.0

Subtask #1
10.0 / 10.0

Subtask #2
20.0 / 20.0

Subtask #3
20.0 / 20.0

Subtask #4
15.0 / 15.0

Subtask #5
20.0 / 20.0

Subtask #6
15.0 / 15.0