Submission #159235

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
159235	2019-10-21T14:29:20 Z	RoundMango	Arranging Shoes (IOI19_shoes)	C++14	100 / 100	419 ms	276564 KB

shoes

# include <bits/stdc++.h>
using namespace std;
queue <long long> q[2][200000];
long long n, idx, a[200000], ans, k, kx, xx[200000], m;
int alg (long long x) {
    int num = 0;
    for (int i = x; i >= 1; i -= (i&(-i)) ) num += xx[i];
    return num;
}
void upd (int x, int y) {
    for (int i = x; i <= n; i += (i&(-i)) ) xx[i] += y;
}
//int main() {
//	cin>>n;
//	for (int i = 1; i <= 2*n; i++) cin>>a[i];
long long count_swaps(std::vector <int> v) {
	n = v.size();
	for (long long i = 0; i < n; i++) a[i+1] = v[i];
	for (int i = 1; i <= n; i++) upd(i, 1);
	for(int i = 1; i <= n; i++) {
	    if (a[i] < 0) {
	    	if (q[1][abs(a[i])].empty()) q[0][abs(a[i])].push(i);  
			else {
				ans += alg(i-1) - alg(q[1][abs(a[i])].front()-1);
				upd(q[1][abs(a[i])].front(), 1);
				upd(i, -1);
				q[1][abs(a[i])].pop();
				}
			}
		else {
			if (q[0][a[i]].empty()) q[1][a[i]].push(i);
			else {
				ans += alg(i-1) - alg(q[0][a[i]].front()-1) - 1;
				upd(q[0][a[i]].front(), 1);
				upd(i, -1);
				q[0][a[i]].pop();
			}
		}
	}
	return ans;
}

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	271 ms	269688 KB	Output is correct
2	Correct	269 ms	269688 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	271 ms	269688 KB	Output is correct
2	Correct	269 ms	269688 KB	Output is correct
3	Correct	269 ms	269608 KB	Output is correct
4	Correct	273 ms	269608 KB	Output is correct
5	Correct	274 ms	269564 KB	Output is correct
6	Correct	272 ms	269532 KB	Output is correct
7	Correct	272 ms	269624 KB	Output is correct
8	Correct	271 ms	269560 KB	Output is correct
9	Correct	274 ms	269560 KB	Output is correct
10	Correct	272 ms	269560 KB	Output is correct
11	Correct	268 ms	269560 KB	Output is correct
12	Correct	270 ms	269560 KB	Output is correct
13	Correct	272 ms	269560 KB	Output is correct
14	Correct	270 ms	269532 KB	Output is correct
15	Correct	276 ms	269540 KB	Output is correct
16	Correct	270 ms	269560 KB	Output is correct
17	Correct	274 ms	269532 KB	Output is correct
18	Correct	275 ms	269688 KB	Output is correct
19	Correct	272 ms	269616 KB	Output is correct
20	Correct	270 ms	269560 KB	Output is correct
21	Correct	275 ms	269548 KB	Output is correct
22	Correct	276 ms	269568 KB	Output is correct
23	Correct	271 ms	269544 KB	Output is correct
24	Correct	271 ms	269560 KB	Output is correct
25	Correct	272 ms	269560 KB	Output is correct
26	Correct	274 ms	269564 KB	Output is correct
27	Correct	278 ms	269564 KB	Output is correct
28	Correct	275 ms	269560 KB	Output is correct
29	Correct	273 ms	269560 KB	Output is correct
30	Correct	271 ms	269560 KB	Output is correct
31	Correct	273 ms	269564 KB	Output is correct
32	Correct	273 ms	269632 KB	Output is correct
33	Correct	286 ms	269608 KB	Output is correct
34	Correct	330 ms	269560 KB	Output is correct
35	Correct	305 ms	269584 KB	Output is correct
36	Correct	279 ms	269636 KB	Output is correct

Subtask #3

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	271 ms	269688 KB	Output is correct
2	Correct	269 ms	269688 KB	Output is correct
3	Correct	271 ms	269532 KB	Output is correct
4	Correct	277 ms	269560 KB	Output is correct
5	Correct	269 ms	269592 KB	Output is correct
6	Correct	269 ms	269580 KB	Output is correct
7	Correct	271 ms	269592 KB	Output is correct
8	Correct	271 ms	269688 KB	Output is correct
9	Correct	271 ms	269660 KB	Output is correct
10	Correct	272 ms	269560 KB	Output is correct
11	Correct	273 ms	269560 KB	Output is correct
12	Correct	313 ms	269688 KB	Output is correct
13	Correct	274 ms	269812 KB	Output is correct
14	Correct	269 ms	269560 KB	Output is correct
15	Correct	280 ms	269672 KB	Output is correct
16	Correct	295 ms	269544 KB	Output is correct
17	Correct	269 ms	269560 KB	Output is correct
18	Correct	271 ms	269636 KB	Output is correct
19	Correct	271 ms	269688 KB	Output is correct
20	Correct	304 ms	270200 KB	Output is correct
21	Correct	299 ms	270096 KB	Output is correct
22	Correct	314 ms	275576 KB	Output is correct
23	Correct	311 ms	275576 KB	Output is correct
24	Correct	381 ms	275544 KB	Output is correct
25	Correct	394 ms	276168 KB	Output is correct
26	Correct	371 ms	275576 KB	Output is correct
27	Correct	379 ms	275320 KB	Output is correct
28	Correct	386 ms	276336 KB	Output is correct
29	Correct	367 ms	276472 KB	Output is correct
30	Correct	375 ms	276516 KB	Output is correct
31	Correct	361 ms	275564 KB	Output is correct
32	Correct	359 ms	276564 KB	Output is correct
33	Correct	324 ms	276192 KB	Output is correct
34	Correct	329 ms	276344 KB	Output is correct
35	Correct	274 ms	269704 KB	Output is correct
36	Correct	274 ms	269560 KB	Output is correct
37	Correct	334 ms	276464 KB	Output is correct
38	Correct	343 ms	276472 KB	Output is correct
39	Correct	338 ms	276344 KB	Output is correct

Subtask #4

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	323 ms	269520 KB	Output is correct
2	Correct	330 ms	269560 KB	Output is correct
3	Correct	317 ms	269728 KB	Output is correct
4	Correct	332 ms	269560 KB	Output is correct
5	Correct	417 ms	275576 KB	Output is correct
6	Correct	333 ms	275576 KB	Output is correct
7	Correct	354 ms	275580 KB	Output is correct
8	Correct	340 ms	276532 KB	Output is correct
9	Correct	372 ms	275568 KB	Output is correct
10	Correct	419 ms	275652 KB	Output is correct

Subtask #5

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	271 ms	269688 KB	Output is correct
2	Correct	269 ms	269688 KB	Output is correct
3	Correct	269 ms	269608 KB	Output is correct
4	Correct	273 ms	269608 KB	Output is correct
5	Correct	274 ms	269564 KB	Output is correct
6	Correct	272 ms	269532 KB	Output is correct
7	Correct	272 ms	269624 KB	Output is correct
8	Correct	271 ms	269560 KB	Output is correct
9	Correct	274 ms	269560 KB	Output is correct
10	Correct	272 ms	269560 KB	Output is correct
11	Correct	268 ms	269560 KB	Output is correct
12	Correct	270 ms	269560 KB	Output is correct
13	Correct	272 ms	269560 KB	Output is correct
14	Correct	270 ms	269532 KB	Output is correct
15	Correct	276 ms	269540 KB	Output is correct
16	Correct	270 ms	269560 KB	Output is correct
17	Correct	274 ms	269532 KB	Output is correct
18	Correct	275 ms	269688 KB	Output is correct
19	Correct	272 ms	269616 KB	Output is correct
20	Correct	270 ms	269560 KB	Output is correct
21	Correct	275 ms	269548 KB	Output is correct
22	Correct	276 ms	269568 KB	Output is correct
23	Correct	271 ms	269544 KB	Output is correct
24	Correct	271 ms	269560 KB	Output is correct
25	Correct	272 ms	269560 KB	Output is correct
26	Correct	274 ms	269564 KB	Output is correct
27	Correct	278 ms	269564 KB	Output is correct
28	Correct	275 ms	269560 KB	Output is correct
29	Correct	273 ms	269560 KB	Output is correct
30	Correct	271 ms	269560 KB	Output is correct
31	Correct	273 ms	269564 KB	Output is correct
32	Correct	273 ms	269632 KB	Output is correct
33	Correct	286 ms	269608 KB	Output is correct
34	Correct	330 ms	269560 KB	Output is correct
35	Correct	305 ms	269584 KB	Output is correct
36	Correct	279 ms	269636 KB	Output is correct
37	Correct	275 ms	269616 KB	Output is correct
38	Correct	310 ms	269688 KB	Output is correct
39	Correct	272 ms	269564 KB	Output is correct
40	Correct	275 ms	269660 KB	Output is correct
41	Correct	342 ms	269688 KB	Output is correct
42	Correct	274 ms	269688 KB	Output is correct
43	Correct	276 ms	269688 KB	Output is correct
44	Correct	272 ms	269804 KB	Output is correct
45	Correct	271 ms	269684 KB	Output is correct
46	Correct	270 ms	269688 KB	Output is correct
47	Correct	271 ms	269856 KB	Output is correct
48	Correct	273 ms	269688 KB	Output is correct
49	Correct	271 ms	269656 KB	Output is correct
50	Correct	273 ms	269708 KB	Output is correct
51	Correct	274 ms	269612 KB	Output is correct
52	Correct	272 ms	269604 KB	Output is correct

Subtask #6

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	271 ms	269688 KB	Output is correct
2	Correct	269 ms	269688 KB	Output is correct
3	Correct	269 ms	269608 KB	Output is correct
4	Correct	273 ms	269608 KB	Output is correct
5	Correct	274 ms	269564 KB	Output is correct
6	Correct	272 ms	269532 KB	Output is correct
7	Correct	272 ms	269624 KB	Output is correct
8	Correct	271 ms	269560 KB	Output is correct
9	Correct	274 ms	269560 KB	Output is correct
10	Correct	272 ms	269560 KB	Output is correct
11	Correct	268 ms	269560 KB	Output is correct
12	Correct	270 ms	269560 KB	Output is correct
13	Correct	272 ms	269560 KB	Output is correct
14	Correct	270 ms	269532 KB	Output is correct
15	Correct	276 ms	269540 KB	Output is correct
16	Correct	270 ms	269560 KB	Output is correct
17	Correct	274 ms	269532 KB	Output is correct
18	Correct	275 ms	269688 KB	Output is correct
19	Correct	272 ms	269616 KB	Output is correct
20	Correct	270 ms	269560 KB	Output is correct
21	Correct	275 ms	269548 KB	Output is correct
22	Correct	276 ms	269568 KB	Output is correct
23	Correct	271 ms	269544 KB	Output is correct
24	Correct	271 ms	269560 KB	Output is correct
25	Correct	272 ms	269560 KB	Output is correct
26	Correct	274 ms	269564 KB	Output is correct
27	Correct	278 ms	269564 KB	Output is correct
28	Correct	275 ms	269560 KB	Output is correct
29	Correct	273 ms	269560 KB	Output is correct
30	Correct	271 ms	269560 KB	Output is correct
31	Correct	273 ms	269564 KB	Output is correct
32	Correct	273 ms	269632 KB	Output is correct
33	Correct	286 ms	269608 KB	Output is correct
34	Correct	330 ms	269560 KB	Output is correct
35	Correct	305 ms	269584 KB	Output is correct
36	Correct	279 ms	269636 KB	Output is correct
37	Correct	271 ms	269532 KB	Output is correct
38	Correct	277 ms	269560 KB	Output is correct
39	Correct	269 ms	269592 KB	Output is correct
40	Correct	269 ms	269580 KB	Output is correct
41	Correct	271 ms	269592 KB	Output is correct
42	Correct	271 ms	269688 KB	Output is correct
43	Correct	271 ms	269660 KB	Output is correct
44	Correct	272 ms	269560 KB	Output is correct
45	Correct	273 ms	269560 KB	Output is correct
46	Correct	313 ms	269688 KB	Output is correct
47	Correct	274 ms	269812 KB	Output is correct
48	Correct	269 ms	269560 KB	Output is correct
49	Correct	280 ms	269672 KB	Output is correct
50	Correct	295 ms	269544 KB	Output is correct
51	Correct	269 ms	269560 KB	Output is correct
52	Correct	271 ms	269636 KB	Output is correct
53	Correct	271 ms	269688 KB	Output is correct
54	Correct	304 ms	270200 KB	Output is correct
55	Correct	299 ms	270096 KB	Output is correct
56	Correct	314 ms	275576 KB	Output is correct
57	Correct	311 ms	275576 KB	Output is correct
58	Correct	381 ms	275544 KB	Output is correct
59	Correct	394 ms	276168 KB	Output is correct
60	Correct	371 ms	275576 KB	Output is correct
61	Correct	379 ms	275320 KB	Output is correct
62	Correct	386 ms	276336 KB	Output is correct
63	Correct	367 ms	276472 KB	Output is correct
64	Correct	375 ms	276516 KB	Output is correct
65	Correct	361 ms	275564 KB	Output is correct
66	Correct	359 ms	276564 KB	Output is correct
67	Correct	324 ms	276192 KB	Output is correct
68	Correct	329 ms	276344 KB	Output is correct
69	Correct	274 ms	269704 KB	Output is correct
70	Correct	274 ms	269560 KB	Output is correct
71	Correct	334 ms	276464 KB	Output is correct
72	Correct	343 ms	276472 KB	Output is correct
73	Correct	338 ms	276344 KB	Output is correct
74	Correct	323 ms	269520 KB	Output is correct
75	Correct	330 ms	269560 KB	Output is correct
76	Correct	317 ms	269728 KB	Output is correct
77	Correct	332 ms	269560 KB	Output is correct
78	Correct	417 ms	275576 KB	Output is correct
79	Correct	333 ms	275576 KB	Output is correct
80	Correct	354 ms	275580 KB	Output is correct
81	Correct	340 ms	276532 KB	Output is correct
82	Correct	372 ms	275568 KB	Output is correct
83	Correct	419 ms	275652 KB	Output is correct
84	Correct	275 ms	269616 KB	Output is correct
85	Correct	310 ms	269688 KB	Output is correct
86	Correct	272 ms	269564 KB	Output is correct
87	Correct	275 ms	269660 KB	Output is correct
88	Correct	342 ms	269688 KB	Output is correct
89	Correct	274 ms	269688 KB	Output is correct
90	Correct	276 ms	269688 KB	Output is correct
91	Correct	272 ms	269804 KB	Output is correct
92	Correct	271 ms	269684 KB	Output is correct
93	Correct	270 ms	269688 KB	Output is correct
94	Correct	271 ms	269856 KB	Output is correct
95	Correct	273 ms	269688 KB	Output is correct
96	Correct	271 ms	269656 KB	Output is correct
97	Correct	273 ms	269708 KB	Output is correct
98	Correct	274 ms	269612 KB	Output is correct
99	Correct	272 ms	269604 KB	Output is correct
100	Correct	275 ms	269660 KB	Output is correct
101	Correct	276 ms	270200 KB	Output is correct
102	Correct	289 ms	270200 KB	Output is correct
103	Correct	368 ms	275604 KB	Output is correct
104	Correct	334 ms	275580 KB	Output is correct
105	Correct	351 ms	275576 KB	Output is correct
106	Correct	355 ms	275516 KB	Output is correct
107	Correct	419 ms	275600 KB	Output is correct
108	Correct	323 ms	275648 KB	Output is correct
109	Correct	329 ms	276512 KB	Output is correct
110	Correct	324 ms	276472 KB	Output is correct
111	Correct	350 ms	275576 KB	Output is correct
112	Correct	353 ms	275596 KB	Output is correct
113	Correct	330 ms	275508 KB	Output is correct
114	Correct	356 ms	275576 KB	Output is correct
115	Correct	351 ms	275576 KB	Output is correct