# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
823545 |
2023-08-12T17:28:43 Z |
vjudge1 |
Rectangles (IOI19_rect) |
C++17 |
|
2023 ms |
577320 KB |
#include<bits/stdc++.h>
#include "rect.h"
using namespace std;
using ll = long long;
const int M = (1 << 13);
int t[2 * M];
void update(int pos, int val) {
for(t[pos += M] += val; pos > 1; pos >>= 1)
t[pos >> 1] = t[pos] + t[(pos ^ 1)];
}
int get(int ql, int qr) {
int sum = 0;
for(ql += M, qr += M + 1; ql < qr; ql >>= 1, qr >>= 1) {
if(ql & 1) sum += t[ql++];
if(qr & 1) sum += t[--qr];
}
return sum;
}
// O(nlogn)
vector<pair<int, int>> get_segments(vector<int> a) {
int n = (int)a.size();
vector<pair<int, int>> res;
vector<int> st;
for(int i = 0; i < n; i++) {
while(!st.empty() && a[st.back()] < a[i]) {
if(i - st.back() > 1) res.push_back({st.back() + 1, i - 1});
st.pop_back();
}
if(!st.empty()) {
if(i - st.back() > 1) res.push_back({st.back() + 1, i - 1});
if(a[st.back()] == a[i]) st.pop_back();
}
st.push_back(i);
}
return res;
}
const int N = 2505;
struct segment {
int l, d;
};
vector<segment> h[N][N], g[N][N];
ll count_rectangles(vector<vector<int>> a) {
int n = (int)a.size(), m = (int)a[0].size();
if(n < 3 || m < 3) return 0;
for(int i = 0; i < n; i++) {
vector<pair<int, int>> s = get_segments(a[i]);
for(auto [l, r] : s)
g[i][r].push_back({l, 0});
}
for(int i = 0; i < m; i++) {
vector<int> b;
for(int j = 0; j < n; j++)
b.push_back(a[j][i]);
vector<pair<int, int>> s = get_segments(b);
for(auto [l, r] : s)
h[r][i].push_back({l, 0});
}
for(int i = 0; i < n; i++) {
int cnt[n] = {};
bool us[n] = {};
for(int j = 0; j < m; j++) {
if(!j) {
for(auto c : h[i][j])
cnt[c.l]++;
} else {
for(auto c : h[i][j])
us[c.l] = 1;
for(auto c : h[i][j - 1])
if(!us[c.l]) cnt[c.l] = 0;
for(auto c : h[i][j]) {
cnt[c.l]++;
us[c.l] = 0;
}
}
for(auto &c : h[i][j]) {
c.d = cnt[c.l];
}
}
}
for(int i = 0; i < m; i++) {
int cnt[m] = {};
bool us[m] = {};
for(int j = 0; j < n; j++) {
if(!j) {
for(auto c : g[j][i])
cnt[c.l]++;
} else {
for(auto c : g[j][i])
us[c.l] = 1;
for(auto c : g[j - 1][i])
if(!us[c.l])
cnt[c.l] = 0;
for(auto c : g[j][i]) {
cnt[c.l]++;
us[c.l] = 0;
}
}
for(auto &c : g[j][i])
c.d = cnt[c.l];
}
}
ll ans = 0;
for(int i = 0; i < n; i++) {
for(int j = 0; j < m; j++) {
sort(g[i][j].begin(), g[i][j].end(), [](segment x, segment y) {return x.l < y.l;});
sort(h[i][j].begin(), h[i][j].end(), [](segment x, segment y) {return x.d > y.d;});
int h_l = 0;
for(segment cur : g[i][j]) {
while(h_l < (int)h[i][j].size() && j - h[i][j][h_l].d < cur.l) {
update(h[i][j][h_l++].l, +1);
}
ans += get(i - cur.d + 1, i);
}
while(h_l > 0)
update(h[i][j][--h_l].l, -1);
}
}
return ans;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
149 ms |
294968 KB |
Output is correct |
2 |
Correct |
122 ms |
294960 KB |
Output is correct |
3 |
Correct |
124 ms |
294964 KB |
Output is correct |
4 |
Correct |
122 ms |
294972 KB |
Output is correct |
5 |
Correct |
123 ms |
294956 KB |
Output is correct |
6 |
Correct |
121 ms |
295020 KB |
Output is correct |
7 |
Correct |
122 ms |
294944 KB |
Output is correct |
8 |
Correct |
137 ms |
295008 KB |
Output is correct |
9 |
Correct |
122 ms |
295028 KB |
Output is correct |
10 |
Correct |
136 ms |
294988 KB |
Output is correct |
11 |
Correct |
121 ms |
294936 KB |
Output is correct |
12 |
Correct |
124 ms |
294976 KB |
Output is correct |
13 |
Correct |
119 ms |
294988 KB |
Output is correct |
14 |
Correct |
127 ms |
294944 KB |
Output is correct |
15 |
Correct |
122 ms |
295004 KB |
Output is correct |
16 |
Correct |
121 ms |
294980 KB |
Output is correct |
17 |
Correct |
122 ms |
294956 KB |
Output is correct |
18 |
Correct |
122 ms |
294956 KB |
Output is correct |
19 |
Correct |
124 ms |
294976 KB |
Output is correct |
20 |
Correct |
123 ms |
294924 KB |
Output is correct |
21 |
Correct |
123 ms |
294928 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
149 ms |
294968 KB |
Output is correct |
2 |
Correct |
122 ms |
294960 KB |
Output is correct |
3 |
Correct |
124 ms |
294964 KB |
Output is correct |
4 |
Correct |
122 ms |
294972 KB |
Output is correct |
5 |
Correct |
123 ms |
294956 KB |
Output is correct |
6 |
Correct |
121 ms |
295020 KB |
Output is correct |
7 |
Correct |
122 ms |
294944 KB |
Output is correct |
8 |
Correct |
137 ms |
295008 KB |
Output is correct |
9 |
Correct |
122 ms |
295028 KB |
Output is correct |
10 |
Correct |
136 ms |
294988 KB |
Output is correct |
11 |
Correct |
121 ms |
294936 KB |
Output is correct |
12 |
Correct |
124 ms |
294976 KB |
Output is correct |
13 |
Correct |
119 ms |
294988 KB |
Output is correct |
14 |
Correct |
127 ms |
294944 KB |
Output is correct |
15 |
Correct |
122 ms |
295004 KB |
Output is correct |
16 |
Correct |
121 ms |
294980 KB |
Output is correct |
17 |
Correct |
122 ms |
294956 KB |
Output is correct |
18 |
Correct |
122 ms |
294956 KB |
Output is correct |
19 |
Correct |
124 ms |
294976 KB |
Output is correct |
20 |
Correct |
123 ms |
294924 KB |
Output is correct |
21 |
Correct |
123 ms |
294928 KB |
Output is correct |
22 |
Correct |
122 ms |
295164 KB |
Output is correct |
23 |
Correct |
124 ms |
295212 KB |
Output is correct |
24 |
Correct |
135 ms |
295152 KB |
Output is correct |
25 |
Correct |
155 ms |
295116 KB |
Output is correct |
26 |
Correct |
156 ms |
295224 KB |
Output is correct |
27 |
Correct |
126 ms |
295244 KB |
Output is correct |
28 |
Correct |
123 ms |
295264 KB |
Output is correct |
29 |
Correct |
121 ms |
295124 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
149 ms |
294968 KB |
Output is correct |
2 |
Correct |
122 ms |
294960 KB |
Output is correct |
3 |
Correct |
124 ms |
294964 KB |
Output is correct |
4 |
Correct |
122 ms |
294972 KB |
Output is correct |
5 |
Correct |
123 ms |
294956 KB |
Output is correct |
6 |
Correct |
121 ms |
295020 KB |
Output is correct |
7 |
Correct |
122 ms |
294944 KB |
Output is correct |
8 |
Correct |
137 ms |
295008 KB |
Output is correct |
9 |
Correct |
122 ms |
295028 KB |
Output is correct |
10 |
Correct |
136 ms |
294988 KB |
Output is correct |
11 |
Correct |
121 ms |
294936 KB |
Output is correct |
12 |
Correct |
124 ms |
294976 KB |
Output is correct |
13 |
Correct |
119 ms |
294988 KB |
Output is correct |
14 |
Correct |
127 ms |
294944 KB |
Output is correct |
15 |
Correct |
122 ms |
295004 KB |
Output is correct |
16 |
Correct |
121 ms |
294980 KB |
Output is correct |
17 |
Correct |
122 ms |
295164 KB |
Output is correct |
18 |
Correct |
124 ms |
295212 KB |
Output is correct |
19 |
Correct |
135 ms |
295152 KB |
Output is correct |
20 |
Correct |
155 ms |
295116 KB |
Output is correct |
21 |
Correct |
156 ms |
295224 KB |
Output is correct |
22 |
Correct |
126 ms |
295244 KB |
Output is correct |
23 |
Correct |
123 ms |
295264 KB |
Output is correct |
24 |
Correct |
121 ms |
295124 KB |
Output is correct |
25 |
Correct |
122 ms |
294956 KB |
Output is correct |
26 |
Correct |
122 ms |
294956 KB |
Output is correct |
27 |
Correct |
124 ms |
294976 KB |
Output is correct |
28 |
Correct |
123 ms |
294924 KB |
Output is correct |
29 |
Correct |
123 ms |
294928 KB |
Output is correct |
30 |
Correct |
125 ms |
296164 KB |
Output is correct |
31 |
Correct |
133 ms |
296152 KB |
Output is correct |
32 |
Correct |
126 ms |
296164 KB |
Output is correct |
33 |
Correct |
129 ms |
296132 KB |
Output is correct |
34 |
Correct |
134 ms |
296764 KB |
Output is correct |
35 |
Correct |
137 ms |
296692 KB |
Output is correct |
36 |
Correct |
138 ms |
296688 KB |
Output is correct |
37 |
Correct |
139 ms |
296672 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
149 ms |
294968 KB |
Output is correct |
2 |
Correct |
122 ms |
294960 KB |
Output is correct |
3 |
Correct |
124 ms |
294964 KB |
Output is correct |
4 |
Correct |
122 ms |
294972 KB |
Output is correct |
5 |
Correct |
123 ms |
294956 KB |
Output is correct |
6 |
Correct |
121 ms |
295020 KB |
Output is correct |
7 |
Correct |
122 ms |
294944 KB |
Output is correct |
8 |
Correct |
137 ms |
295008 KB |
Output is correct |
9 |
Correct |
122 ms |
295028 KB |
Output is correct |
10 |
Correct |
136 ms |
294988 KB |
Output is correct |
11 |
Correct |
121 ms |
294936 KB |
Output is correct |
12 |
Correct |
124 ms |
294976 KB |
Output is correct |
13 |
Correct |
119 ms |
294988 KB |
Output is correct |
14 |
Correct |
127 ms |
294944 KB |
Output is correct |
15 |
Correct |
122 ms |
295004 KB |
Output is correct |
16 |
Correct |
121 ms |
294980 KB |
Output is correct |
17 |
Correct |
122 ms |
295164 KB |
Output is correct |
18 |
Correct |
124 ms |
295212 KB |
Output is correct |
19 |
Correct |
135 ms |
295152 KB |
Output is correct |
20 |
Correct |
155 ms |
295116 KB |
Output is correct |
21 |
Correct |
156 ms |
295224 KB |
Output is correct |
22 |
Correct |
126 ms |
295244 KB |
Output is correct |
23 |
Correct |
123 ms |
295264 KB |
Output is correct |
24 |
Correct |
121 ms |
295124 KB |
Output is correct |
25 |
Correct |
125 ms |
296164 KB |
Output is correct |
26 |
Correct |
133 ms |
296152 KB |
Output is correct |
27 |
Correct |
126 ms |
296164 KB |
Output is correct |
28 |
Correct |
129 ms |
296132 KB |
Output is correct |
29 |
Correct |
134 ms |
296764 KB |
Output is correct |
30 |
Correct |
137 ms |
296692 KB |
Output is correct |
31 |
Correct |
138 ms |
296688 KB |
Output is correct |
32 |
Correct |
139 ms |
296672 KB |
Output is correct |
33 |
Correct |
122 ms |
294956 KB |
Output is correct |
34 |
Correct |
122 ms |
294956 KB |
Output is correct |
35 |
Correct |
124 ms |
294976 KB |
Output is correct |
36 |
Correct |
123 ms |
294924 KB |
Output is correct |
37 |
Correct |
123 ms |
294928 KB |
Output is correct |
38 |
Correct |
191 ms |
304692 KB |
Output is correct |
39 |
Correct |
192 ms |
309360 KB |
Output is correct |
40 |
Correct |
179 ms |
309380 KB |
Output is correct |
41 |
Correct |
179 ms |
314200 KB |
Output is correct |
42 |
Correct |
196 ms |
310124 KB |
Output is correct |
43 |
Correct |
191 ms |
310064 KB |
Output is correct |
44 |
Correct |
194 ms |
310168 KB |
Output is correct |
45 |
Correct |
186 ms |
309460 KB |
Output is correct |
46 |
Correct |
173 ms |
306500 KB |
Output is correct |
47 |
Correct |
193 ms |
309028 KB |
Output is correct |
48 |
Correct |
253 ms |
316904 KB |
Output is correct |
49 |
Correct |
278 ms |
317076 KB |
Output is correct |
50 |
Correct |
192 ms |
306012 KB |
Output is correct |
51 |
Correct |
199 ms |
306076 KB |
Output is correct |
52 |
Correct |
251 ms |
315512 KB |
Output is correct |
53 |
Correct |
250 ms |
315560 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
125 ms |
295412 KB |
Output is correct |
2 |
Correct |
128 ms |
295196 KB |
Output is correct |
3 |
Correct |
125 ms |
294964 KB |
Output is correct |
4 |
Correct |
120 ms |
294976 KB |
Output is correct |
5 |
Correct |
138 ms |
295152 KB |
Output is correct |
6 |
Correct |
121 ms |
295220 KB |
Output is correct |
7 |
Correct |
131 ms |
295244 KB |
Output is correct |
8 |
Correct |
124 ms |
295128 KB |
Output is correct |
9 |
Correct |
123 ms |
295196 KB |
Output is correct |
10 |
Correct |
130 ms |
294984 KB |
Output is correct |
11 |
Correct |
120 ms |
295020 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
122 ms |
294956 KB |
Output is correct |
2 |
Correct |
122 ms |
294956 KB |
Output is correct |
3 |
Correct |
124 ms |
294976 KB |
Output is correct |
4 |
Correct |
123 ms |
294924 KB |
Output is correct |
5 |
Correct |
123 ms |
294928 KB |
Output is correct |
6 |
Correct |
119 ms |
294904 KB |
Output is correct |
7 |
Correct |
506 ms |
362408 KB |
Output is correct |
8 |
Correct |
1076 ms |
441180 KB |
Output is correct |
9 |
Correct |
1037 ms |
441908 KB |
Output is correct |
10 |
Correct |
950 ms |
441948 KB |
Output is correct |
11 |
Correct |
207 ms |
319288 KB |
Output is correct |
12 |
Correct |
343 ms |
341120 KB |
Output is correct |
13 |
Correct |
357 ms |
344172 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
149 ms |
294968 KB |
Output is correct |
2 |
Correct |
122 ms |
294960 KB |
Output is correct |
3 |
Correct |
124 ms |
294964 KB |
Output is correct |
4 |
Correct |
122 ms |
294972 KB |
Output is correct |
5 |
Correct |
123 ms |
294956 KB |
Output is correct |
6 |
Correct |
121 ms |
295020 KB |
Output is correct |
7 |
Correct |
122 ms |
294944 KB |
Output is correct |
8 |
Correct |
137 ms |
295008 KB |
Output is correct |
9 |
Correct |
122 ms |
295028 KB |
Output is correct |
10 |
Correct |
136 ms |
294988 KB |
Output is correct |
11 |
Correct |
121 ms |
294936 KB |
Output is correct |
12 |
Correct |
124 ms |
294976 KB |
Output is correct |
13 |
Correct |
119 ms |
294988 KB |
Output is correct |
14 |
Correct |
127 ms |
294944 KB |
Output is correct |
15 |
Correct |
122 ms |
295004 KB |
Output is correct |
16 |
Correct |
121 ms |
294980 KB |
Output is correct |
17 |
Correct |
122 ms |
295164 KB |
Output is correct |
18 |
Correct |
124 ms |
295212 KB |
Output is correct |
19 |
Correct |
135 ms |
295152 KB |
Output is correct |
20 |
Correct |
155 ms |
295116 KB |
Output is correct |
21 |
Correct |
156 ms |
295224 KB |
Output is correct |
22 |
Correct |
126 ms |
295244 KB |
Output is correct |
23 |
Correct |
123 ms |
295264 KB |
Output is correct |
24 |
Correct |
121 ms |
295124 KB |
Output is correct |
25 |
Correct |
125 ms |
296164 KB |
Output is correct |
26 |
Correct |
133 ms |
296152 KB |
Output is correct |
27 |
Correct |
126 ms |
296164 KB |
Output is correct |
28 |
Correct |
129 ms |
296132 KB |
Output is correct |
29 |
Correct |
134 ms |
296764 KB |
Output is correct |
30 |
Correct |
137 ms |
296692 KB |
Output is correct |
31 |
Correct |
138 ms |
296688 KB |
Output is correct |
32 |
Correct |
139 ms |
296672 KB |
Output is correct |
33 |
Correct |
191 ms |
304692 KB |
Output is correct |
34 |
Correct |
192 ms |
309360 KB |
Output is correct |
35 |
Correct |
179 ms |
309380 KB |
Output is correct |
36 |
Correct |
179 ms |
314200 KB |
Output is correct |
37 |
Correct |
196 ms |
310124 KB |
Output is correct |
38 |
Correct |
191 ms |
310064 KB |
Output is correct |
39 |
Correct |
194 ms |
310168 KB |
Output is correct |
40 |
Correct |
186 ms |
309460 KB |
Output is correct |
41 |
Correct |
173 ms |
306500 KB |
Output is correct |
42 |
Correct |
193 ms |
309028 KB |
Output is correct |
43 |
Correct |
253 ms |
316904 KB |
Output is correct |
44 |
Correct |
278 ms |
317076 KB |
Output is correct |
45 |
Correct |
192 ms |
306012 KB |
Output is correct |
46 |
Correct |
199 ms |
306076 KB |
Output is correct |
47 |
Correct |
251 ms |
315512 KB |
Output is correct |
48 |
Correct |
250 ms |
315560 KB |
Output is correct |
49 |
Correct |
125 ms |
295412 KB |
Output is correct |
50 |
Correct |
128 ms |
295196 KB |
Output is correct |
51 |
Correct |
125 ms |
294964 KB |
Output is correct |
52 |
Correct |
120 ms |
294976 KB |
Output is correct |
53 |
Correct |
138 ms |
295152 KB |
Output is correct |
54 |
Correct |
121 ms |
295220 KB |
Output is correct |
55 |
Correct |
131 ms |
295244 KB |
Output is correct |
56 |
Correct |
124 ms |
295128 KB |
Output is correct |
57 |
Correct |
123 ms |
295196 KB |
Output is correct |
58 |
Correct |
130 ms |
294984 KB |
Output is correct |
59 |
Correct |
120 ms |
295020 KB |
Output is correct |
60 |
Correct |
119 ms |
294904 KB |
Output is correct |
61 |
Correct |
506 ms |
362408 KB |
Output is correct |
62 |
Correct |
1076 ms |
441180 KB |
Output is correct |
63 |
Correct |
1037 ms |
441908 KB |
Output is correct |
64 |
Correct |
950 ms |
441948 KB |
Output is correct |
65 |
Correct |
207 ms |
319288 KB |
Output is correct |
66 |
Correct |
343 ms |
341120 KB |
Output is correct |
67 |
Correct |
357 ms |
344172 KB |
Output is correct |
68 |
Correct |
122 ms |
294956 KB |
Output is correct |
69 |
Correct |
122 ms |
294956 KB |
Output is correct |
70 |
Correct |
124 ms |
294976 KB |
Output is correct |
71 |
Correct |
123 ms |
294924 KB |
Output is correct |
72 |
Correct |
123 ms |
294928 KB |
Output is correct |
73 |
Correct |
740 ms |
407752 KB |
Output is correct |
74 |
Correct |
917 ms |
472680 KB |
Output is correct |
75 |
Correct |
1056 ms |
473684 KB |
Output is correct |
76 |
Correct |
1115 ms |
539736 KB |
Output is correct |
77 |
Correct |
981 ms |
462012 KB |
Output is correct |
78 |
Correct |
1203 ms |
462888 KB |
Output is correct |
79 |
Correct |
1320 ms |
472980 KB |
Output is correct |
80 |
Correct |
2005 ms |
575076 KB |
Output is correct |
81 |
Correct |
1249 ms |
464236 KB |
Output is correct |
82 |
Correct |
1700 ms |
520828 KB |
Output is correct |
83 |
Correct |
2023 ms |
577320 KB |
Output is correct |
84 |
Correct |
1193 ms |
453480 KB |
Output is correct |
85 |
Correct |
1997 ms |
560944 KB |
Output is correct |
86 |
Correct |
1886 ms |
552780 KB |
Output is correct |
87 |
Correct |
626 ms |
399432 KB |
Output is correct |
88 |
Correct |
968 ms |
462016 KB |
Output is correct |
89 |
Correct |
960 ms |
462120 KB |
Output is correct |
90 |
Correct |
998 ms |
462072 KB |
Output is correct |