Submission #298214

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
298214	2020-09-12T14:57:16 Z	Abelyan	Arranging Shoes (IOI19_shoes)	C++17	100 / 100	176 ms	73028 KB

shoes

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

#define FOR(i,n) for (int i=0;i<(n);++i)


const int N=1e6+6;
priority_queue<int> aj[N],dz[N];
int fw[N];
int n;
int get(int ind){
	int ans=0;
	for(;ind>=0;ind=(ind&(ind+1))-1){
		ans+=fw[ind];
	}
	return ans;
}

void add(int ind,int val){
	for(;ind<n;ind=ind|(ind+1)){
		fw[ind]+=val;
	}
}
bool col[N];

long long count_swaps(vector<int> s) {
	n=s.size();
	FOR(i,n){
		if (s[i]<0){
			dz[-s[i]].push(-i);
		}
		else{
			aj[s[i]].push(-i);
		}
	}
	long long ans=0;
	int qan=0;
	FOR(i,n){
		if (col[i])continue;
		
		int j;
		if (s[i]<0){
			dz[-s[i]].pop();
			j=-aj[-s[i]].top();
			aj[-s[i]].pop();
		}
		if (s[i]>0){
			ans++;
			aj[s[i]].pop();
			j=-dz[s[i]].top();
			dz[s[i]].pop();

		}
		col[j]=true;

		ans+=j-2*qan-1+get(j);
		add(j,-1);
		add(0,1);
		qan++;
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:57:9: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
   57 |   ans+=j-2*qan-1+get(j);
      |        ~^~~~~~

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	62968 KB	Output is correct
2	Correct	44 ms	62872 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	62968 KB	Output is correct
2	Correct	44 ms	62872 KB	Output is correct
3	Correct	43 ms	63000 KB	Output is correct
4	Correct	45 ms	62968 KB	Output is correct
5	Correct	43 ms	63096 KB	Output is correct
6	Correct	45 ms	62968 KB	Output is correct
7	Correct	43 ms	62968 KB	Output is correct
8	Correct	44 ms	62968 KB	Output is correct
9	Correct	44 ms	62968 KB	Output is correct
10	Correct	44 ms	62968 KB	Output is correct
11	Correct	44 ms	63104 KB	Output is correct
12	Correct	44 ms	63096 KB	Output is correct
13	Correct	43 ms	63096 KB	Output is correct
14	Correct	44 ms	62968 KB	Output is correct
15	Correct	44 ms	62968 KB	Output is correct
16	Correct	43 ms	62976 KB	Output is correct
17	Correct	44 ms	62968 KB	Output is correct
18	Correct	43 ms	62968 KB	Output is correct
19	Correct	43 ms	62976 KB	Output is correct
20	Correct	43 ms	62968 KB	Output is correct
21	Correct	45 ms	62968 KB	Output is correct
22	Correct	44 ms	63096 KB	Output is correct
23	Correct	48 ms	62968 KB	Output is correct
24	Correct	43 ms	62976 KB	Output is correct
25	Correct	45 ms	62976 KB	Output is correct
26	Correct	44 ms	62968 KB	Output is correct
27	Correct	44 ms	62976 KB	Output is correct
28	Correct	43 ms	62968 KB	Output is correct
29	Correct	44 ms	62968 KB	Output is correct
30	Correct	44 ms	62968 KB	Output is correct
31	Correct	43 ms	62996 KB	Output is correct
32	Correct	44 ms	62968 KB	Output is correct
33	Correct	45 ms	62968 KB	Output is correct
34	Correct	46 ms	62976 KB	Output is correct
35	Correct	44 ms	62968 KB	Output is correct
36	Correct	45 ms	62976 KB	Output is correct

Subtask #3

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	62968 KB	Output is correct
2	Correct	44 ms	62872 KB	Output is correct
3	Correct	43 ms	62968 KB	Output is correct
4	Correct	45 ms	63008 KB	Output is correct
5	Correct	44 ms	62968 KB	Output is correct
6	Correct	43 ms	62968 KB	Output is correct
7	Correct	47 ms	62968 KB	Output is correct
8	Correct	44 ms	62968 KB	Output is correct
9	Correct	48 ms	63096 KB	Output is correct
10	Correct	50 ms	63096 KB	Output is correct
11	Correct	43 ms	62968 KB	Output is correct
12	Correct	44 ms	62976 KB	Output is correct
13	Correct	44 ms	62972 KB	Output is correct
14	Correct	44 ms	62976 KB	Output is correct
15	Correct	44 ms	62976 KB	Output is correct
16	Correct	43 ms	63096 KB	Output is correct
17	Correct	46 ms	62968 KB	Output is correct
18	Correct	43 ms	62968 KB	Output is correct
19	Correct	44 ms	62968 KB	Output is correct
20	Correct	48 ms	63480 KB	Output is correct
21	Correct	48 ms	63512 KB	Output is correct
22	Correct	99 ms	66712 KB	Output is correct
23	Correct	102 ms	66924 KB	Output is correct
24	Correct	103 ms	66796 KB	Output is correct
25	Correct	95 ms	66288 KB	Output is correct
26	Correct	98 ms	66924 KB	Output is correct
27	Correct	96 ms	66924 KB	Output is correct
28	Correct	95 ms	66292 KB	Output is correct
29	Correct	96 ms	66288 KB	Output is correct
30	Correct	95 ms	66360 KB	Output is correct
31	Correct	106 ms	66820 KB	Output is correct
32	Correct	96 ms	66288 KB	Output is correct
33	Correct	95 ms	66416 KB	Output is correct
34	Correct	94 ms	66416 KB	Output is correct
35	Correct	44 ms	62976 KB	Output is correct
36	Correct	44 ms	62968 KB	Output is correct
37	Correct	98 ms	66288 KB	Output is correct
38	Correct	99 ms	66288 KB	Output is correct
39	Correct	100 ms	66288 KB	Output is correct

Subtask #4

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	43 ms	62968 KB	Output is correct
2	Correct	48 ms	62968 KB	Output is correct
3	Correct	51 ms	62968 KB	Output is correct
4	Correct	43 ms	62976 KB	Output is correct
5	Correct	128 ms	71544 KB	Output is correct
6	Correct	130 ms	66808 KB	Output is correct
7	Correct	133 ms	71544 KB	Output is correct
8	Correct	102 ms	66308 KB	Output is correct
9	Correct	134 ms	71544 KB	Output is correct
10	Correct	137 ms	68476 KB	Output is correct

Subtask #5

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	62968 KB	Output is correct
2	Correct	44 ms	62872 KB	Output is correct
3	Correct	43 ms	63000 KB	Output is correct
4	Correct	45 ms	62968 KB	Output is correct
5	Correct	43 ms	63096 KB	Output is correct
6	Correct	45 ms	62968 KB	Output is correct
7	Correct	43 ms	62968 KB	Output is correct
8	Correct	44 ms	62968 KB	Output is correct
9	Correct	44 ms	62968 KB	Output is correct
10	Correct	44 ms	62968 KB	Output is correct
11	Correct	44 ms	63104 KB	Output is correct
12	Correct	44 ms	63096 KB	Output is correct
13	Correct	43 ms	63096 KB	Output is correct
14	Correct	44 ms	62968 KB	Output is correct
15	Correct	44 ms	62968 KB	Output is correct
16	Correct	43 ms	62976 KB	Output is correct
17	Correct	44 ms	62968 KB	Output is correct
18	Correct	43 ms	62968 KB	Output is correct
19	Correct	43 ms	62976 KB	Output is correct
20	Correct	43 ms	62968 KB	Output is correct
21	Correct	45 ms	62968 KB	Output is correct
22	Correct	44 ms	63096 KB	Output is correct
23	Correct	48 ms	62968 KB	Output is correct
24	Correct	43 ms	62976 KB	Output is correct
25	Correct	45 ms	62976 KB	Output is correct
26	Correct	44 ms	62968 KB	Output is correct
27	Correct	44 ms	62976 KB	Output is correct
28	Correct	43 ms	62968 KB	Output is correct
29	Correct	44 ms	62968 KB	Output is correct
30	Correct	44 ms	62968 KB	Output is correct
31	Correct	43 ms	62996 KB	Output is correct
32	Correct	44 ms	62968 KB	Output is correct
33	Correct	45 ms	62968 KB	Output is correct
34	Correct	46 ms	62976 KB	Output is correct
35	Correct	44 ms	62968 KB	Output is correct
36	Correct	45 ms	62976 KB	Output is correct
37	Correct	45 ms	62968 KB	Output is correct
38	Correct	42 ms	62968 KB	Output is correct
39	Correct	43 ms	62976 KB	Output is correct
40	Correct	43 ms	62968 KB	Output is correct
41	Correct	45 ms	62968 KB	Output is correct
42	Correct	43 ms	62968 KB	Output is correct
43	Correct	43 ms	63004 KB	Output is correct
44	Correct	44 ms	62968 KB	Output is correct
45	Correct	43 ms	63068 KB	Output is correct
46	Correct	44 ms	62968 KB	Output is correct
47	Correct	44 ms	62968 KB	Output is correct
48	Correct	45 ms	62968 KB	Output is correct
49	Correct	49 ms	62968 KB	Output is correct
50	Correct	44 ms	62968 KB	Output is correct
51	Correct	44 ms	62972 KB	Output is correct
52	Correct	43 ms	62976 KB	Output is correct

Subtask #6

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	62968 KB	Output is correct
2	Correct	44 ms	62872 KB	Output is correct
3	Correct	43 ms	63000 KB	Output is correct
4	Correct	45 ms	62968 KB	Output is correct
5	Correct	43 ms	63096 KB	Output is correct
6	Correct	45 ms	62968 KB	Output is correct
7	Correct	43 ms	62968 KB	Output is correct
8	Correct	44 ms	62968 KB	Output is correct
9	Correct	44 ms	62968 KB	Output is correct
10	Correct	44 ms	62968 KB	Output is correct
11	Correct	44 ms	63104 KB	Output is correct
12	Correct	44 ms	63096 KB	Output is correct
13	Correct	43 ms	63096 KB	Output is correct
14	Correct	44 ms	62968 KB	Output is correct
15	Correct	44 ms	62968 KB	Output is correct
16	Correct	43 ms	62976 KB	Output is correct
17	Correct	44 ms	62968 KB	Output is correct
18	Correct	43 ms	62968 KB	Output is correct
19	Correct	43 ms	62976 KB	Output is correct
20	Correct	43 ms	62968 KB	Output is correct
21	Correct	45 ms	62968 KB	Output is correct
22	Correct	44 ms	63096 KB	Output is correct
23	Correct	48 ms	62968 KB	Output is correct
24	Correct	43 ms	62976 KB	Output is correct
25	Correct	45 ms	62976 KB	Output is correct
26	Correct	44 ms	62968 KB	Output is correct
27	Correct	44 ms	62976 KB	Output is correct
28	Correct	43 ms	62968 KB	Output is correct
29	Correct	44 ms	62968 KB	Output is correct
30	Correct	44 ms	62968 KB	Output is correct
31	Correct	43 ms	62996 KB	Output is correct
32	Correct	44 ms	62968 KB	Output is correct
33	Correct	45 ms	62968 KB	Output is correct
34	Correct	46 ms	62976 KB	Output is correct
35	Correct	44 ms	62968 KB	Output is correct
36	Correct	45 ms	62976 KB	Output is correct
37	Correct	43 ms	62968 KB	Output is correct
38	Correct	45 ms	63008 KB	Output is correct
39	Correct	44 ms	62968 KB	Output is correct
40	Correct	43 ms	62968 KB	Output is correct
41	Correct	47 ms	62968 KB	Output is correct
42	Correct	44 ms	62968 KB	Output is correct
43	Correct	48 ms	63096 KB	Output is correct
44	Correct	50 ms	63096 KB	Output is correct
45	Correct	43 ms	62968 KB	Output is correct
46	Correct	44 ms	62976 KB	Output is correct
47	Correct	44 ms	62972 KB	Output is correct
48	Correct	44 ms	62976 KB	Output is correct
49	Correct	44 ms	62976 KB	Output is correct
50	Correct	43 ms	63096 KB	Output is correct
51	Correct	46 ms	62968 KB	Output is correct
52	Correct	43 ms	62968 KB	Output is correct
53	Correct	44 ms	62968 KB	Output is correct
54	Correct	48 ms	63480 KB	Output is correct
55	Correct	48 ms	63512 KB	Output is correct
56	Correct	99 ms	66712 KB	Output is correct
57	Correct	102 ms	66924 KB	Output is correct
58	Correct	103 ms	66796 KB	Output is correct
59	Correct	95 ms	66288 KB	Output is correct
60	Correct	98 ms	66924 KB	Output is correct
61	Correct	96 ms	66924 KB	Output is correct
62	Correct	95 ms	66292 KB	Output is correct
63	Correct	96 ms	66288 KB	Output is correct
64	Correct	95 ms	66360 KB	Output is correct
65	Correct	106 ms	66820 KB	Output is correct
66	Correct	96 ms	66288 KB	Output is correct
67	Correct	95 ms	66416 KB	Output is correct
68	Correct	94 ms	66416 KB	Output is correct
69	Correct	44 ms	62976 KB	Output is correct
70	Correct	44 ms	62968 KB	Output is correct
71	Correct	98 ms	66288 KB	Output is correct
72	Correct	99 ms	66288 KB	Output is correct
73	Correct	100 ms	66288 KB	Output is correct
74	Correct	43 ms	62968 KB	Output is correct
75	Correct	48 ms	62968 KB	Output is correct
76	Correct	51 ms	62968 KB	Output is correct
77	Correct	43 ms	62976 KB	Output is correct
78	Correct	128 ms	71544 KB	Output is correct
79	Correct	130 ms	66808 KB	Output is correct
80	Correct	133 ms	71544 KB	Output is correct
81	Correct	102 ms	66308 KB	Output is correct
82	Correct	134 ms	71544 KB	Output is correct
83	Correct	137 ms	68476 KB	Output is correct
84	Correct	45 ms	62968 KB	Output is correct
85	Correct	42 ms	62968 KB	Output is correct
86	Correct	43 ms	62976 KB	Output is correct
87	Correct	43 ms	62968 KB	Output is correct
88	Correct	45 ms	62968 KB	Output is correct
89	Correct	43 ms	62968 KB	Output is correct
90	Correct	43 ms	63004 KB	Output is correct
91	Correct	44 ms	62968 KB	Output is correct
92	Correct	43 ms	63068 KB	Output is correct
93	Correct	44 ms	62968 KB	Output is correct
94	Correct	44 ms	62968 KB	Output is correct
95	Correct	45 ms	62968 KB	Output is correct
96	Correct	49 ms	62968 KB	Output is correct
97	Correct	44 ms	62968 KB	Output is correct
98	Correct	44 ms	62972 KB	Output is correct
99	Correct	43 ms	62976 KB	Output is correct
100	Correct	44 ms	62968 KB	Output is correct
101	Correct	50 ms	63864 KB	Output is correct
102	Correct	50 ms	63480 KB	Output is correct
103	Correct	176 ms	73028 KB	Output is correct
104	Correct	150 ms	72956 KB	Output is correct
105	Correct	164 ms	70456 KB	Output is correct
106	Correct	128 ms	72568 KB	Output is correct
107	Correct	125 ms	68372 KB	Output is correct
108	Correct	132 ms	68856 KB	Output is correct
109	Correct	97 ms	67568 KB	Output is correct
110	Correct	96 ms	67208 KB	Output is correct
111	Correct	139 ms	71800 KB	Output is correct
112	Correct	164 ms	71800 KB	Output is correct
113	Correct	120 ms	67832 KB	Output is correct
114	Correct	136 ms	72608 KB	Output is correct
115	Correct	127 ms	72632 KB	Output is correct