oj.uz

Submission #145970

# Submission time Handle Problem Language Result Execution time Memory
145970 2019-08-21T13:15:33 Z dennisstar Arranging Shoes (IOI19_shoes) C++17
100 / 100
 250 ms 140912 KB 
#include "shoes.h"
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
//c1:-, c2:+
deque<int> c1[100010], c2[100010];
int pi[200010];
int ar[600010]; const int MAX=(1<<18);
long long count_swaps(std::vector<int> s) {
	int i, j;
	int cnt=0;
	for (i=0; i<s.size(); i++) {
		if (s[i]>0) {
			if (c1[s[i]].empty()) c2[s[i]].push_back(i);
			else {
				pi[c1[s[i]].front()]=i;
				pi[i]=c1[s[i]].front();
				c1[s[i]].front()=-1;
				c1[s[i]].pop_front();
				cnt++;
			}
		}
		else if (s[i]<0) {
			if (c2[-s[i]].empty()) c1[-s[i]].push_back(i);
			else {
				pi[c2[-s[i]].front()]=i;
				pi[i]=c2[-s[i]].front();
				c2[-s[i]].front()=-1;
				c2[-s[i]].pop_front();
				cnt++;
			}
		}
		else printf("%d", 1/0);
	}
	if (cnt<s.size()/2) {
		printf("%d", 1/0);
		return 0;
	}
	for (i=0; i<s.size(); i++) ar[MAX+i]=1;
	for (i=MAX+s.size()-1; i; i--) ar[i/2]+=ar[i];
	ll ans=0; int fr, re;
	for (i=0; i<s.size(); i++) {
		if (!ar[MAX+i]) continue;
		if (s[i]>0) ans++;
		fr=i+1+MAX, re=pi[i]-1+MAX;
		while (fr<=re) {
			if (fr&1) ans+=(ll)ar[fr++];
			if (!(re&1)) ans+=(ll)ar[re--];
			fr/=2; re/=2;
		}
		for (j=i+MAX; j; j/=2) ar[j]--;
		for (j=pi[i]+MAX; j; j/=2) ar[j]--;
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:12:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i=0; i<s.size(); i++) {
            ~^~~~~~~~~
shoes.cpp:33:22: warning: division by zero [-Wdiv-by-zero]
   else printf("%d", 1/0);
                     ~^~
shoes.cpp:35:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if (cnt<s.size()/2) {
      ~~~^~~~~~~~~~~
shoes.cpp:36:17: warning: division by zero [-Wdiv-by-zero]
   printf("%d", 1/0);
                ~^~
shoes.cpp:39:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i=0; i<s.size(); i++) ar[MAX+i]=1;
            ~^~~~~~~~~
shoes.cpp:42:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i=0; i<s.size(); i++) {
            ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 145 ms 135440 KB Output is correct
2 Correct 143 ms 135544 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 145 ms 135440 KB Output is correct
2 Correct 143 ms 135544 KB Output is correct
3 Correct 143 ms 135544 KB Output is correct
4 Correct 142 ms 135544 KB Output is correct
5 Correct 142 ms 135528 KB Output is correct
6 Correct 143 ms 135488 KB Output is correct
7 Correct 142 ms 135544 KB Output is correct
8 Correct 144 ms 135544 KB Output is correct
9 Correct 142 ms 135436 KB Output is correct
10 Correct 145 ms 135476 KB Output is correct
11 Correct 143 ms 135544 KB Output is correct
12 Correct 143 ms 135516 KB Output is correct
13 Correct 144 ms 135544 KB Output is correct
14 Correct 150 ms 135544 KB Output is correct
15 Correct 143 ms 135608 KB Output is correct
16 Correct 146 ms 135488 KB Output is correct
17 Correct 143 ms 135620 KB Output is correct
18 Correct 144 ms 135504 KB Output is correct
19 Correct 146 ms 135544 KB Output is correct
20 Correct 144 ms 135548 KB Output is correct
21 Correct 147 ms 135524 KB Output is correct
22 Correct 151 ms 135516 KB Output is correct
23 Correct 144 ms 135544 KB Output is correct
24 Correct 145 ms 135544 KB Output is correct
25 Correct 143 ms 135548 KB Output is correct
26 Correct 142 ms 135544 KB Output is correct
27 Correct 143 ms 135544 KB Output is correct
28 Correct 143 ms 135516 KB Output is correct
29 Correct 146 ms 135544 KB Output is correct
30 Correct 143 ms 135476 KB Output is correct
31 Correct 144 ms 135444 KB Output is correct
32 Correct 145 ms 135544 KB Output is correct
33 Correct 143 ms 135580 KB Output is correct
34 Correct 142 ms 135544 KB Output is correct
35 Correct 144 ms 135528 KB Output is correct
36 Correct 141 ms 135696 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 145 ms 135440 KB Output is correct
2 Correct 143 ms 135544 KB Output is correct
3 Correct 178 ms 135544 KB Output is correct
4 Correct 144 ms 135460 KB Output is correct
5 Correct 144 ms 135544 KB Output is correct
6 Correct 145 ms 135544 KB Output is correct
7 Correct 143 ms 135544 KB Output is correct
8 Correct 144 ms 135544 KB Output is correct
9 Correct 143 ms 135516 KB Output is correct
10 Correct 143 ms 135544 KB Output is correct
11 Correct 144 ms 135524 KB Output is correct
12 Correct 145 ms 135548 KB Output is correct
13 Correct 142 ms 135544 KB Output is correct
14 Correct 145 ms 135480 KB Output is correct
15 Correct 143 ms 135544 KB Output is correct
16 Correct 144 ms 135616 KB Output is correct
17 Correct 149 ms 135508 KB Output is correct
18 Correct 157 ms 135544 KB Output is correct
19 Correct 155 ms 135544 KB Output is correct
20 Correct 162 ms 136068 KB Output is correct
21 Correct 154 ms 135928 KB Output is correct
22 Correct 200 ms 140280 KB Output is correct
23 Correct 188 ms 140332 KB Output is correct
24 Correct 196 ms 140280 KB Output is correct
25 Correct 195 ms 140536 KB Output is correct
26 Correct 194 ms 140376 KB Output is correct
27 Correct 193 ms 140152 KB Output is correct
28 Correct 212 ms 140664 KB Output is correct
29 Correct 192 ms 140764 KB Output is correct
30 Correct 187 ms 140764 KB Output is correct
31 Correct 195 ms 140284 KB Output is correct
32 Correct 197 ms 140664 KB Output is correct
33 Correct 195 ms 140536 KB Output is correct
34 Correct 199 ms 140792 KB Output is correct
35 Correct 151 ms 135560 KB Output is correct
36 Correct 143 ms 135504 KB Output is correct
37 Correct 198 ms 140816 KB Output is correct
38 Correct 198 ms 140912 KB Output is correct
39 Correct 195 ms 140828 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 167 ms 135544 KB Output is correct
2 Correct 143 ms 135548 KB Output is correct
3 Correct 143 ms 135544 KB Output is correct
4 Correct 145 ms 135544 KB Output is correct
5 Correct 229 ms 140364 KB Output is correct
6 Correct 206 ms 140276 KB Output is correct
7 Correct 240 ms 140280 KB Output is correct
8 Correct 203 ms 140760 KB Output is correct
9 Correct 231 ms 140376 KB Output is correct
10 Correct 215 ms 140324 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 145 ms 135440 KB Output is correct
2 Correct 143 ms 135544 KB Output is correct
3 Correct 143 ms 135544 KB Output is correct
4 Correct 142 ms 135544 KB Output is correct
5 Correct 142 ms 135528 KB Output is correct
6 Correct 143 ms 135488 KB Output is correct
7 Correct 142 ms 135544 KB Output is correct
8 Correct 144 ms 135544 KB Output is correct
9 Correct 142 ms 135436 KB Output is correct
10 Correct 145 ms 135476 KB Output is correct
11 Correct 143 ms 135544 KB Output is correct
12 Correct 143 ms 135516 KB Output is correct
13 Correct 144 ms 135544 KB Output is correct
14 Correct 150 ms 135544 KB Output is correct
15 Correct 143 ms 135608 KB Output is correct
16 Correct 146 ms 135488 KB Output is correct
17 Correct 143 ms 135620 KB Output is correct
18 Correct 144 ms 135504 KB Output is correct
19 Correct 146 ms 135544 KB Output is correct
20 Correct 144 ms 135548 KB Output is correct
21 Correct 147 ms 135524 KB Output is correct
22 Correct 151 ms 135516 KB Output is correct
23 Correct 144 ms 135544 KB Output is correct
24 Correct 145 ms 135544 KB Output is correct
25 Correct 143 ms 135548 KB Output is correct
26 Correct 142 ms 135544 KB Output is correct
27 Correct 143 ms 135544 KB Output is correct
28 Correct 143 ms 135516 KB Output is correct
29 Correct 146 ms 135544 KB Output is correct
30 Correct 143 ms 135476 KB Output is correct
31 Correct 144 ms 135444 KB Output is correct
32 Correct 145 ms 135544 KB Output is correct
33 Correct 143 ms 135580 KB Output is correct
34 Correct 142 ms 135544 KB Output is correct
35 Correct 144 ms 135528 KB Output is correct
36 Correct 141 ms 135696 KB Output is correct
37 Correct 144 ms 135580 KB Output is correct
38 Correct 140 ms 135544 KB Output is correct
39 Correct 141 ms 135544 KB Output is correct
40 Correct 141 ms 135544 KB Output is correct
41 Correct 143 ms 135544 KB Output is correct
42 Correct 142 ms 135540 KB Output is correct
43 Correct 144 ms 135516 KB Output is correct
44 Correct 142 ms 135544 KB Output is correct
45 Correct 142 ms 135492 KB Output is correct
46 Correct 148 ms 135696 KB Output is correct
47 Correct 143 ms 135472 KB Output is correct
48 Correct 168 ms 135520 KB Output is correct
49 Correct 149 ms 135544 KB Output is correct
50 Correct 166 ms 135584 KB Output is correct
51 Correct 153 ms 135616 KB Output is correct
52 Correct 144 ms 135504 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 145 ms 135440 KB Output is correct
2 Correct 143 ms 135544 KB Output is correct
3 Correct 143 ms 135544 KB Output is correct
4 Correct 142 ms 135544 KB Output is correct
5 Correct 142 ms 135528 KB Output is correct
6 Correct 143 ms 135488 KB Output is correct
7 Correct 142 ms 135544 KB Output is correct
8 Correct 144 ms 135544 KB Output is correct
9 Correct 142 ms 135436 KB Output is correct
10 Correct 145 ms 135476 KB Output is correct
11 Correct 143 ms 135544 KB Output is correct
12 Correct 143 ms 135516 KB Output is correct
13 Correct 144 ms 135544 KB Output is correct
14 Correct 150 ms 135544 KB Output is correct
15 Correct 143 ms 135608 KB Output is correct
16 Correct 146 ms 135488 KB Output is correct
17 Correct 143 ms 135620 KB Output is correct
18 Correct 144 ms 135504 KB Output is correct
19 Correct 146 ms 135544 KB Output is correct
20 Correct 144 ms 135548 KB Output is correct
21 Correct 147 ms 135524 KB Output is correct
22 Correct 151 ms 135516 KB Output is correct
23 Correct 144 ms 135544 KB Output is correct
24 Correct 145 ms 135544 KB Output is correct
25 Correct 143 ms 135548 KB Output is correct
26 Correct 142 ms 135544 KB Output is correct
27 Correct 143 ms 135544 KB Output is correct
28 Correct 143 ms 135516 KB Output is correct
29 Correct 146 ms 135544 KB Output is correct
30 Correct 143 ms 135476 KB Output is correct
31 Correct 144 ms 135444 KB Output is correct
32 Correct 145 ms 135544 KB Output is correct
33 Correct 143 ms 135580 KB Output is correct
34 Correct 142 ms 135544 KB Output is correct
35 Correct 144 ms 135528 KB Output is correct
36 Correct 141 ms 135696 KB Output is correct
37 Correct 178 ms 135544 KB Output is correct
38 Correct 144 ms 135460 KB Output is correct
39 Correct 144 ms 135544 KB Output is correct
40 Correct 145 ms 135544 KB Output is correct
41 Correct 143 ms 135544 KB Output is correct
42 Correct 144 ms 135544 KB Output is correct
43 Correct 143 ms 135516 KB Output is correct
44 Correct 143 ms 135544 KB Output is correct
45 Correct 144 ms 135524 KB Output is correct
46 Correct 145 ms 135548 KB Output is correct
47 Correct 142 ms 135544 KB Output is correct
48 Correct 145 ms 135480 KB Output is correct
49 Correct 143 ms 135544 KB Output is correct
50 Correct 144 ms 135616 KB Output is correct
51 Correct 149 ms 135508 KB Output is correct
52 Correct 157 ms 135544 KB Output is correct
53 Correct 155 ms 135544 KB Output is correct
54 Correct 162 ms 136068 KB Output is correct
55 Correct 154 ms 135928 KB Output is correct
56 Correct 200 ms 140280 KB Output is correct
57 Correct 188 ms 140332 KB Output is correct
58 Correct 196 ms 140280 KB Output is correct
59 Correct 195 ms 140536 KB Output is correct
60 Correct 194 ms 140376 KB Output is correct
61 Correct 193 ms 140152 KB Output is correct
62 Correct 212 ms 140664 KB Output is correct
63 Correct 192 ms 140764 KB Output is correct
64 Correct 187 ms 140764 KB Output is correct
65 Correct 195 ms 140284 KB Output is correct
66 Correct 197 ms 140664 KB Output is correct
67 Correct 195 ms 140536 KB Output is correct
68 Correct 199 ms 140792 KB Output is correct
69 Correct 151 ms 135560 KB Output is correct
70 Correct 143 ms 135504 KB Output is correct
71 Correct 198 ms 140816 KB Output is correct
72 Correct 198 ms 140912 KB Output is correct
73 Correct 195 ms 140828 KB Output is correct
74 Correct 167 ms 135544 KB Output is correct
75 Correct 143 ms 135548 KB Output is correct
76 Correct 143 ms 135544 KB Output is correct
77 Correct 145 ms 135544 KB Output is correct
78 Correct 229 ms 140364 KB Output is correct
79 Correct 206 ms 140276 KB Output is correct
80 Correct 240 ms 140280 KB Output is correct
81 Correct 203 ms 140760 KB Output is correct
82 Correct 231 ms 140376 KB Output is correct
83 Correct 215 ms 140324 KB Output is correct
84 Correct 144 ms 135580 KB Output is correct
85 Correct 140 ms 135544 KB Output is correct
86 Correct 141 ms 135544 KB Output is correct
87 Correct 141 ms 135544 KB Output is correct
88 Correct 143 ms 135544 KB Output is correct
89 Correct 142 ms 135540 KB Output is correct
90 Correct 144 ms 135516 KB Output is correct
91 Correct 142 ms 135544 KB Output is correct
92 Correct 142 ms 135492 KB Output is correct
93 Correct 148 ms 135696 KB Output is correct
94 Correct 143 ms 135472 KB Output is correct
95 Correct 168 ms 135520 KB Output is correct
96 Correct 149 ms 135544 KB Output is correct
97 Correct 166 ms 135584 KB Output is correct
98 Correct 153 ms 135616 KB Output is correct
99 Correct 144 ms 135504 KB Output is correct
100 Correct 147 ms 135556 KB Output is correct
101 Correct 152 ms 135920 KB Output is correct
102 Correct 159 ms 135992 KB Output is correct
103 Correct 246 ms 140332 KB Output is correct
104 Correct 200 ms 140280 KB Output is correct
105 Correct 221 ms 140220 KB Output is correct
106 Correct 227 ms 140408 KB Output is correct
107 Correct 199 ms 140280 KB Output is correct
108 Correct 203 ms 140372 KB Output is correct
109 Correct 203 ms 140792 KB Output is correct
110 Correct 231 ms 140664 KB Output is correct
111 Correct 243 ms 140280 KB Output is correct
112 Correct 230 ms 140276 KB Output is correct
113 Correct 214 ms 140304 KB Output is correct
114 Correct 233 ms 140320 KB Output is correct
115 Correct 250 ms 140404 KB Output is correct