oj.uz

Submission #932948

# Submission time Handle Problem Language Result Execution time Memory
932948 2024-02-24T15:45:31 Z velislavgarkov Arranging Shoes (IOI19_shoes) C++14
100 / 100
 46 ms 20824 KB 
#include "shoes.h"
#include <iostream>
#include <vector>
using namespace std;
const int MAXN=2e5+10;
vector <int> idx[MAXN][2];
int lef[MAXN], fen[MAXN];
bool sw[MAXN];
int n;
void update(int ind, int ch) {
	if (ind==0) return;
	while (ind<n) {
		fen[ind]+=ch;
		ind+=(ind & (-ind));
	}
}
int query(int ind) {
	if (ind==0) return 0;
	int res=0;
	while (ind>0) {
		res+=fen[ind];
		ind-=(ind & (-ind));
	}
	return res;
}
long long count_swaps(vector<int> s) {
	n=s.size();
	for (int i=0;i<n;i++) {
		if (s[i]<0) idx[-s[i]][0].push_back(i);
		else idx[s[i]][1].push_back(i);
		lef[i]=-1;
		sw[i]=false;
	}
	for (int i=0;i<n;i++) {
		if (idx[i][0].empty()) continue;
		for (int j=0;j<idx[i][0].size();j++) {
			if (idx[i][0][j]<idx[i][1][j]) lef[idx[i][1][j]]=idx[i][0][j];
			else {
				lef[idx[i][0][j]]=idx[i][1][j];
				sw[idx[i][0][j]]=true;
			}
		}
	}
	long long ans=0;
	for (int i=1;i<n;i++) {
		if (lef[i]==-1) update(i,1);
		else {
			long long s=query(i-1)-query(lef[i]);
			s+=sw[i];
			ans+=s;
			update(lef[i],1);
		}
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:36:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |   for (int j=0;j<idx[i][0].size();j++) {
      |                ~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 4 ms 11188 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 4 ms 11188 KB Output is correct
3 Correct 3 ms 11356 KB Output is correct
4 Correct 3 ms 11356 KB Output is correct
5 Correct 3 ms 11356 KB Output is correct
6 Correct 2 ms 11356 KB Output is correct
7 Correct 3 ms 11352 KB Output is correct
8 Correct 3 ms 11356 KB Output is correct
9 Correct 3 ms 11508 KB Output is correct
10 Correct 2 ms 11356 KB Output is correct
11 Correct 2 ms 11352 KB Output is correct
12 Correct 3 ms 11352 KB Output is correct
13 Correct 2 ms 11356 KB Output is correct
14 Correct 2 ms 11352 KB Output is correct
15 Correct 2 ms 11352 KB Output is correct
16 Correct 2 ms 11356 KB Output is correct
17 Correct 2 ms 11356 KB Output is correct
18 Correct 2 ms 11356 KB Output is correct
19 Correct 2 ms 11356 KB Output is correct
20 Correct 3 ms 11356 KB Output is correct
21 Correct 2 ms 11356 KB Output is correct
22 Correct 2 ms 11356 KB Output is correct
23 Correct 2 ms 11356 KB Output is correct
24 Correct 3 ms 11356 KB Output is correct
25 Correct 3 ms 11356 KB Output is correct
26 Correct 2 ms 11356 KB Output is correct
27 Correct 3 ms 11356 KB Output is correct
28 Correct 2 ms 11356 KB Output is correct
29 Correct 3 ms 11352 KB Output is correct
30 Correct 2 ms 11352 KB Output is correct
31 Correct 3 ms 11356 KB Output is correct
32 Correct 3 ms 11356 KB Output is correct
33 Correct 3 ms 11356 KB Output is correct
34 Correct 2 ms 11356 KB Output is correct
35 Correct 2 ms 11356 KB Output is correct
36 Correct 3 ms 11356 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 4 ms 11188 KB Output is correct
3 Correct 2 ms 11420 KB Output is correct
4 Correct 3 ms 11356 KB Output is correct
5 Correct 3 ms 11356 KB Output is correct
6 Correct 3 ms 11352 KB Output is correct
7 Correct 3 ms 11356 KB Output is correct
8 Correct 2 ms 11352 KB Output is correct
9 Correct 3 ms 11356 KB Output is correct
10 Correct 2 ms 11356 KB Output is correct
11 Correct 2 ms 11356 KB Output is correct
12 Correct 3 ms 11356 KB Output is correct
13 Correct 2 ms 11356 KB Output is correct
14 Correct 3 ms 11356 KB Output is correct
15 Correct 4 ms 11356 KB Output is correct
16 Correct 2 ms 11352 KB Output is correct
17 Correct 2 ms 11356 KB Output is correct
18 Correct 2 ms 11356 KB Output is correct
19 Correct 3 ms 11352 KB Output is correct
20 Correct 5 ms 11864 KB Output is correct
21 Correct 6 ms 11868 KB Output is correct
22 Correct 27 ms 15236 KB Output is correct
23 Correct 25 ms 15320 KB Output is correct
24 Correct 27 ms 15320 KB Output is correct
25 Correct 23 ms 15316 KB Output is correct
26 Correct 27 ms 15384 KB Output is correct
27 Correct 21 ms 15060 KB Output is correct
28 Correct 22 ms 15572 KB Output is correct
29 Correct 23 ms 15568 KB Output is correct
30 Correct 22 ms 15568 KB Output is correct
31 Correct 27 ms 15208 KB Output is correct
32 Correct 24 ms 15568 KB Output is correct
33 Correct 22 ms 15316 KB Output is correct
34 Correct 23 ms 15564 KB Output is correct
35 Correct 2 ms 11356 KB Output is correct
36 Correct 3 ms 11356 KB Output is correct
37 Correct 22 ms 15568 KB Output is correct
38 Correct 22 ms 15388 KB Output is correct
39 Correct 22 ms 15572 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 2 ms 11356 KB Output is correct
3 Correct 2 ms 11352 KB Output is correct
4 Correct 3 ms 11356 KB Output is correct
5 Correct 42 ms 20492 KB Output is correct
6 Correct 26 ms 15696 KB Output is correct
7 Correct 37 ms 20504 KB Output is correct
8 Correct 23 ms 15304 KB Output is correct
9 Correct 36 ms 20568 KB Output is correct
10 Correct 46 ms 17496 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 4 ms 11188 KB Output is correct
3 Correct 3 ms 11356 KB Output is correct
4 Correct 3 ms 11356 KB Output is correct
5 Correct 3 ms 11356 KB Output is correct
6 Correct 2 ms 11356 KB Output is correct
7 Correct 3 ms 11352 KB Output is correct
8 Correct 3 ms 11356 KB Output is correct
9 Correct 3 ms 11508 KB Output is correct
10 Correct 2 ms 11356 KB Output is correct
11 Correct 2 ms 11352 KB Output is correct
12 Correct 3 ms 11352 KB Output is correct
13 Correct 2 ms 11356 KB Output is correct
14 Correct 2 ms 11352 KB Output is correct
15 Correct 2 ms 11352 KB Output is correct
16 Correct 2 ms 11356 KB Output is correct
17 Correct 2 ms 11356 KB Output is correct
18 Correct 2 ms 11356 KB Output is correct
19 Correct 2 ms 11356 KB Output is correct
20 Correct 3 ms 11356 KB Output is correct
21 Correct 2 ms 11356 KB Output is correct
22 Correct 2 ms 11356 KB Output is correct
23 Correct 2 ms 11356 KB Output is correct
24 Correct 3 ms 11356 KB Output is correct
25 Correct 3 ms 11356 KB Output is correct
26 Correct 2 ms 11356 KB Output is correct
27 Correct 3 ms 11356 KB Output is correct
28 Correct 2 ms 11356 KB Output is correct
29 Correct 3 ms 11352 KB Output is correct
30 Correct 2 ms 11352 KB Output is correct
31 Correct 3 ms 11356 KB Output is correct
32 Correct 3 ms 11356 KB Output is correct
33 Correct 3 ms 11356 KB Output is correct
34 Correct 2 ms 11356 KB Output is correct
35 Correct 2 ms 11356 KB Output is correct
36 Correct 3 ms 11356 KB Output is correct
37 Correct 2 ms 11352 KB Output is correct
38 Correct 3 ms 11356 KB Output is correct
39 Correct 2 ms 11356 KB Output is correct
40 Correct 3 ms 11352 KB Output is correct
41 Correct 3 ms 11356 KB Output is correct
42 Correct 3 ms 11432 KB Output is correct
43 Correct 3 ms 11356 KB Output is correct
44 Correct 2 ms 11356 KB Output is correct
45 Correct 3 ms 11380 KB Output is correct
46 Correct 3 ms 11356 KB Output is correct
47 Correct 3 ms 11356 KB Output is correct
48 Correct 3 ms 11356 KB Output is correct
49 Correct 2 ms 11356 KB Output is correct
50 Correct 3 ms 11356 KB Output is correct
51 Correct 3 ms 11356 KB Output is correct
52 Correct 3 ms 11356 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 11356 KB Output is correct
2 Correct 4 ms 11188 KB Output is correct
3 Correct 3 ms 11356 KB Output is correct
4 Correct 3 ms 11356 KB Output is correct
5 Correct 3 ms 11356 KB Output is correct
6 Correct 2 ms 11356 KB Output is correct
7 Correct 3 ms 11352 KB Output is correct
8 Correct 3 ms 11356 KB Output is correct
9 Correct 3 ms 11508 KB Output is correct
10 Correct 2 ms 11356 KB Output is correct
11 Correct 2 ms 11352 KB Output is correct
12 Correct 3 ms 11352 KB Output is correct
13 Correct 2 ms 11356 KB Output is correct
14 Correct 2 ms 11352 KB Output is correct
15 Correct 2 ms 11352 KB Output is correct
16 Correct 2 ms 11356 KB Output is correct
17 Correct 2 ms 11356 KB Output is correct
18 Correct 2 ms 11356 KB Output is correct
19 Correct 2 ms 11356 KB Output is correct
20 Correct 3 ms 11356 KB Output is correct
21 Correct 2 ms 11356 KB Output is correct
22 Correct 2 ms 11356 KB Output is correct
23 Correct 2 ms 11356 KB Output is correct
24 Correct 3 ms 11356 KB Output is correct
25 Correct 3 ms 11356 KB Output is correct
26 Correct 2 ms 11356 KB Output is correct
27 Correct 3 ms 11356 KB Output is correct
28 Correct 2 ms 11356 KB Output is correct
29 Correct 3 ms 11352 KB Output is correct
30 Correct 2 ms 11352 KB Output is correct
31 Correct 3 ms 11356 KB Output is correct
32 Correct 3 ms 11356 KB Output is correct
33 Correct 3 ms 11356 KB Output is correct
34 Correct 2 ms 11356 KB Output is correct
35 Correct 2 ms 11356 KB Output is correct
36 Correct 3 ms 11356 KB Output is correct
37 Correct 2 ms 11420 KB Output is correct
38 Correct 3 ms 11356 KB Output is correct
39 Correct 3 ms 11356 KB Output is correct
40 Correct 3 ms 11352 KB Output is correct
41 Correct 3 ms 11356 KB Output is correct
42 Correct 2 ms 11352 KB Output is correct
43 Correct 3 ms 11356 KB Output is correct
44 Correct 2 ms 11356 KB Output is correct
45 Correct 2 ms 11356 KB Output is correct
46 Correct 3 ms 11356 KB Output is correct
47 Correct 2 ms 11356 KB Output is correct
48 Correct 3 ms 11356 KB Output is correct
49 Correct 4 ms 11356 KB Output is correct
50 Correct 2 ms 11352 KB Output is correct
51 Correct 2 ms 11356 KB Output is correct
52 Correct 2 ms 11356 KB Output is correct
53 Correct 3 ms 11352 KB Output is correct
54 Correct 5 ms 11864 KB Output is correct
55 Correct 6 ms 11868 KB Output is correct
56 Correct 27 ms 15236 KB Output is correct
57 Correct 25 ms 15320 KB Output is correct
58 Correct 27 ms 15320 KB Output is correct
59 Correct 23 ms 15316 KB Output is correct
60 Correct 27 ms 15384 KB Output is correct
61 Correct 21 ms 15060 KB Output is correct
62 Correct 22 ms 15572 KB Output is correct
63 Correct 23 ms 15568 KB Output is correct
64 Correct 22 ms 15568 KB Output is correct
65 Correct 27 ms 15208 KB Output is correct
66 Correct 24 ms 15568 KB Output is correct
67 Correct 22 ms 15316 KB Output is correct
68 Correct 23 ms 15564 KB Output is correct
69 Correct 2 ms 11356 KB Output is correct
70 Correct 3 ms 11356 KB Output is correct
71 Correct 22 ms 15568 KB Output is correct
72 Correct 22 ms 15388 KB Output is correct
73 Correct 22 ms 15572 KB Output is correct
74 Correct 3 ms 11356 KB Output is correct
75 Correct 2 ms 11356 KB Output is correct
76 Correct 2 ms 11352 KB Output is correct
77 Correct 3 ms 11356 KB Output is correct
78 Correct 42 ms 20492 KB Output is correct
79 Correct 26 ms 15696 KB Output is correct
80 Correct 37 ms 20504 KB Output is correct
81 Correct 23 ms 15304 KB Output is correct
82 Correct 36 ms 20568 KB Output is correct
83 Correct 46 ms 17496 KB Output is correct
84 Correct 2 ms 11352 KB Output is correct
85 Correct 3 ms 11356 KB Output is correct
86 Correct 2 ms 11356 KB Output is correct
87 Correct 3 ms 11352 KB Output is correct
88 Correct 3 ms 11356 KB Output is correct
89 Correct 3 ms 11432 KB Output is correct
90 Correct 3 ms 11356 KB Output is correct
91 Correct 2 ms 11356 KB Output is correct
92 Correct 3 ms 11380 KB Output is correct
93 Correct 3 ms 11356 KB Output is correct
94 Correct 3 ms 11356 KB Output is correct
95 Correct 3 ms 11356 KB Output is correct
96 Correct 2 ms 11356 KB Output is correct
97 Correct 3 ms 11356 KB Output is correct
98 Correct 3 ms 11356 KB Output is correct
99 Correct 3 ms 11356 KB Output is correct
100 Correct 3 ms 11356 KB Output is correct
101 Correct 6 ms 12116 KB Output is correct
102 Correct 5 ms 11860 KB Output is correct
103 Correct 40 ms 20824 KB Output is correct
104 Correct 35 ms 20560 KB Output is correct
105 Correct 40 ms 17748 KB Output is correct
106 Correct 39 ms 20680 KB Output is correct
107 Correct 32 ms 15768 KB Output is correct
108 Correct 29 ms 16216 KB Output is correct
109 Correct 24 ms 15568 KB Output is correct
110 Correct 23 ms 15564 KB Output is correct
111 Correct 35 ms 19792 KB Output is correct
112 Correct 38 ms 19036 KB Output is correct
113 Correct 33 ms 15936 KB Output is correct
114 Correct 34 ms 20572 KB Output is correct
115 Correct 35 ms 20824 KB Output is correct