oj.uz

Submission #164558

# Submission time Handle Problem Language Result Execution time Memory
164558 2019-11-21T13:06:16 Z cfalas Arranging Shoes (IOI19_shoes) C++14
100 / 100
 594 ms 150028 KB 
#include<bits/stdc++.h>
using namespace std;
#include "shoes.h"
#define F first
#define S second
#define MID ((l+r)/2)
long long seg[700000];
long long n;

void build(long long l=0, long long r=n, long long ind=1){
	if(l==r) seg[ind] = 1;
	else{
		build(l, MID, ind*2);
		build(MID+1, r, ind*2+1);
		seg[ind] = seg[ind*2] + seg[ind*2+1];
	}
}

void update(long long p, long long l=0, long long r=n, long long ind=1){
	if(l==r && l==p) seg[ind] = 0;
	else if(r<p || l>p || l==r) return;
	else{
		update(p, l, MID, ind*2);
		update(p, MID+1, r, ind*2+1);
		seg[ind] = seg[ind*2] + seg[ind*2+1];
	}
}

long long query(long long rl, long long rr, long long l=0, long long r=n, long long ind=1){
	if(rl<=l && r<=rr) return seg[ind];
	else if(r<rl || l>rr) return 0;
	else return query(rl, rr, l, MID, ind*2) + query(rl, rr, MID+1, r, ind*2+1);
}
 
long long count_swaps(std::vector<int> s) {
	n = s.size();
	build();
	long long swaps=0;
	long long ind = 0;
	unordered_map<long long, queue<long long> > m;
	for(long long i=0;i<s.size();i++){
		m[s[i]].push(i);
	}
	while(ind<s.size()){
		if(m[s[ind]].size()==0 || m[s[ind]].front() !=ind){
			ind++;
			continue;
		}
		if(s[ind]>0) swaps++;

		long long i = m[-s[ind]].front();
		swaps += query(ind+1, i-1);
		//swaps += (i-ind-1);
		update(m[s[i]].front());
		//cout<<query(ind, i)<<endl;
		m[-s[ind]].pop();
		m[s[ind]].pop();
		ind++;
		//cout<<endl<<endl<<endl;
	}
	return swaps;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:41:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(long long i=0;i<s.size();i++){
                    ~^~~~~~~~~
shoes.cpp:44:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(ind<s.size()){
        ~~~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 252 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 380 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 380 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 252 KB Output is correct
36 Correct 2 ms 376 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 252 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Correct 12 ms 1144 KB Output is correct
21 Correct 11 ms 1144 KB Output is correct
22 Correct 104 ms 7672 KB Output is correct
23 Correct 90 ms 7672 KB Output is correct
24 Correct 100 ms 7708 KB Output is correct
25 Correct 99 ms 7800 KB Output is correct
26 Correct 109 ms 9028 KB Output is correct
27 Correct 90 ms 8696 KB Output is correct
28 Correct 104 ms 8952 KB Output is correct
29 Correct 102 ms 8952 KB Output is correct
30 Correct 104 ms 9004 KB Output is correct
31 Correct 104 ms 8952 KB Output is correct
32 Correct 103 ms 9104 KB Output is correct
33 Correct 102 ms 8672 KB Output is correct
34 Correct 101 ms 8952 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 380 KB Output is correct
37 Correct 101 ms 8972 KB Output is correct
38 Correct 101 ms 9080 KB Output is correct
39 Correct 101 ms 9080 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 556 ms 148668 KB Output is correct
6 Correct 176 ms 19832 KB Output is correct
7 Correct 594 ms 150028 KB Output is correct
8 Correct 109 ms 8952 KB Output is correct
9 Correct 498 ms 149820 KB Output is correct
10 Correct 360 ms 78524 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 252 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 380 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 380 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 252 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 5 ms 504 KB Output is correct
40 Correct 3 ms 760 KB Output is correct
41 Correct 5 ms 1784 KB Output is correct
42 Correct 4 ms 1784 KB Output is correct
43 Correct 4 ms 1660 KB Output is correct
44 Correct 4 ms 1528 KB Output is correct
45 Correct 4 ms 1272 KB Output is correct
46 Correct 4 ms 1144 KB Output is correct
47 Correct 4 ms 1016 KB Output is correct
48 Correct 3 ms 888 KB Output is correct
49 Correct 3 ms 632 KB Output is correct
50 Correct 15 ms 376 KB Output is correct
51 Correct 3 ms 376 KB Output is correct
52 Correct 5 ms 1784 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 256 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 256 KB Output is correct
25 Correct 2 ms 256 KB Output is correct
26 Correct 2 ms 252 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 256 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 380 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 380 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 256 KB Output is correct
35 Correct 2 ms 252 KB Output is correct
36 Correct 2 ms 376 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 380 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 256 KB Output is correct
42 Correct 2 ms 256 KB Output is correct
43 Correct 2 ms 256 KB Output is correct
44 Correct 2 ms 256 KB Output is correct
45 Correct 2 ms 256 KB Output is correct
46 Correct 2 ms 256 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 376 KB Output is correct
50 Correct 2 ms 252 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 3 ms 376 KB Output is correct
54 Correct 12 ms 1144 KB Output is correct
55 Correct 11 ms 1144 KB Output is correct
56 Correct 104 ms 7672 KB Output is correct
57 Correct 90 ms 7672 KB Output is correct
58 Correct 100 ms 7708 KB Output is correct
59 Correct 99 ms 7800 KB Output is correct
60 Correct 109 ms 9028 KB Output is correct
61 Correct 90 ms 8696 KB Output is correct
62 Correct 104 ms 8952 KB Output is correct
63 Correct 102 ms 8952 KB Output is correct
64 Correct 104 ms 9004 KB Output is correct
65 Correct 104 ms 8952 KB Output is correct
66 Correct 103 ms 9104 KB Output is correct
67 Correct 102 ms 8672 KB Output is correct
68 Correct 101 ms 8952 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 380 KB Output is correct
71 Correct 101 ms 8972 KB Output is correct
72 Correct 101 ms 9080 KB Output is correct
73 Correct 101 ms 9080 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 256 KB Output is correct
78 Correct 556 ms 148668 KB Output is correct
79 Correct 176 ms 19832 KB Output is correct
80 Correct 594 ms 150028 KB Output is correct
81 Correct 109 ms 8952 KB Output is correct
82 Correct 498 ms 149820 KB Output is correct
83 Correct 360 ms 78524 KB Output is correct
84 Correct 2 ms 256 KB Output is correct
85 Correct 2 ms 376 KB Output is correct
86 Correct 5 ms 504 KB Output is correct
87 Correct 3 ms 760 KB Output is correct
88 Correct 5 ms 1784 KB Output is correct
89 Correct 4 ms 1784 KB Output is correct
90 Correct 4 ms 1660 KB Output is correct
91 Correct 4 ms 1528 KB Output is correct
92 Correct 4 ms 1272 KB Output is correct
93 Correct 4 ms 1144 KB Output is correct
94 Correct 4 ms 1016 KB Output is correct
95 Correct 3 ms 888 KB Output is correct
96 Correct 3 ms 632 KB Output is correct
97 Correct 15 ms 376 KB Output is correct
98 Correct 3 ms 376 KB Output is correct
99 Correct 5 ms 1784 KB Output is correct
100 Correct 5 ms 1784 KB Output is correct
101 Correct 34 ms 14012 KB Output is correct
102 Correct 20 ms 3960 KB Output is correct
103 Correct 566 ms 149912 KB Output is correct
104 Correct 449 ms 149820 KB Output is correct
105 Correct 413 ms 89076 KB Output is correct
106 Correct 514 ms 149900 KB Output is correct
107 Correct 187 ms 23272 KB Output is correct
108 Correct 208 ms 38952 KB Output is correct
109 Correct 102 ms 8976 KB Output is correct
110 Correct 101 ms 8964 KB Output is correct
111 Correct 513 ms 134292 KB Output is correct
112 Correct 500 ms 118588 KB Output is correct
113 Correct 217 ms 24800 KB Output is correct
114 Correct 530 ms 149820 KB Output is correct
115 Correct 549 ms 149812 KB Output is correct