#include "rainbow.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn = 2e5+5;
vector<int> pos[4][maxn];
vector<int> FW[4][maxn];
vector<pair<int, int>> E[4];
int r, c;
void fadd(int x, int y, int id){
for(x; x <= r; x += x&(-x))pos[id][x].push_back(y);
}
void add(int x, int y, int id){
for(x; x <= r; x += x&(-x)){
for(int idx = lower_bound(pos[id][x].begin(), pos[id][x].end(), y) - pos[id][x].begin(); idx < FW[id][x].size(); idx += idx&(-idx)){
FW[id][x][idx]++;
}
}
}
int query(int x, int y, int id){
int re = 0;
for(x; x > 0; x -= x&(-x)){
for(int idx = upper_bound(pos[id][x].begin(), pos[id][x].end(), y) - pos[id][x].begin() - 1; idx > 0; idx -= idx&(-idx)){
re += FW[id][x][idx];
}
}
return re;
}
int query_rect(int x1, int y1, int x2, int y2, int id){
if(x1 > x2 || y1 > y2)return 0;
return query(x2, y2, id) - query(x1-1, y2, id) - query(x2, y1-1, id) + query(x1-1, y1-1, id);
}
void add_square(int sr, int sc){
// cout << sr << " " << sc << endl;
E[0].push_back({sr, sc});
E[0].push_back({sr+1, sc});
E[1].push_back({sr, sc});
E[1].push_back({sr, sc+1});
E[2].push_back({sr, sc});
E[3].push_back({sr, sc});
E[3].push_back({sr, sc+1});
E[3].push_back({sr+1, sc+1});
E[3].push_back({sr+1, sc});
}
void init(int R, int C, int sr, int sc, int M, char *S) {
r = R;
c = C;
add_square(sr, sc);
for(int i = 0; i < M; i++){
if(S[i] == 'N')sr--;
else if(S[i] == 'W')sc--;
else if(S[i] == 'S')sr++;
else sc++;
add_square(sr, sc);
}
for(int id = 0; id < 4; id++){
sort(E[id].begin(), E[id].end());
E[id].erase(unique(E[id].begin(), E[id].end()), E[id].end());
for(auto v: E[id])fadd(v.first, v.second, id);
for(int i = 1; i <= r; i++){
pos[id][i].push_back(-1);
sort(pos[id][i].begin(), pos[id][i].end());
pos[id][i].erase(unique(pos[id][i].begin(), pos[id][i].end()), pos[id][i].end());
FW[id][i].assign(pos[id][i].size(), 0);
}
for(auto v: E[id])add(v.first, v.second, id);
}
}
// V - E + F - C = 1 => F = 1 + C + E - V
//
int colour(int ar, int ac, int br, int bc) {
int F = query_rect(ar, ac, br, bc, 2);
if(F == 0)return 1;
int V = (br - ar + 1)*2 + (bc - ac + 1)*2 + query_rect(ar+1, ac+1, br, bc, 3);
int E = (br - ar + 1)*2 + (bc - ac + 1)*2 + query_rect(ar+1, ac, br, bc, 0) + query_rect(ar, ac+1, br, bc, 1);
int C = 1 + (query_rect(ar+1, ac+1, br-1, bc-1, 2) == F);
F++;
return 1 + C + E - V - F;
}
Compilation message
rainbow.cpp: In function 'void fadd(int, int, int)':
rainbow.cpp:15:9: warning: statement has no effect [-Wunused-value]
15 | for(x; x <= r; x += x&(-x))pos[id][x].push_back(y);
| ^
rainbow.cpp: In function 'void add(int, int, int)':
rainbow.cpp:19:9: warning: statement has no effect [-Wunused-value]
19 | for(x; x <= r; x += x&(-x)){
| ^
rainbow.cpp:20:102: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
20 | for(int idx = lower_bound(pos[id][x].begin(), pos[id][x].end(), y) - pos[id][x].begin(); idx < FW[id][x].size(); idx += idx&(-idx)){
| ~~~~^~~~~~~~~~~~~~~~~~
rainbow.cpp: In function 'int query(int, int, int)':
rainbow.cpp:28:9: warning: statement has no effect [-Wunused-value]
28 | for(x; x > 0; x -= x&(-x)){
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
37980 KB |
Output is correct |
2 |
Correct |
13 ms |
38236 KB |
Output is correct |
3 |
Correct |
15 ms |
37976 KB |
Output is correct |
4 |
Correct |
13 ms |
37980 KB |
Output is correct |
5 |
Correct |
13 ms |
38236 KB |
Output is correct |
6 |
Correct |
9 ms |
37980 KB |
Output is correct |
7 |
Correct |
9 ms |
37980 KB |
Output is correct |
8 |
Correct |
9 ms |
37980 KB |
Output is correct |
9 |
Correct |
9 ms |
37980 KB |
Output is correct |
10 |
Correct |
9 ms |
37980 KB |
Output is correct |
11 |
Correct |
12 ms |
37976 KB |
Output is correct |
12 |
Correct |
12 ms |
38268 KB |
Output is correct |
13 |
Correct |
12 ms |
38236 KB |
Output is correct |
14 |
Correct |
14 ms |
38508 KB |
Output is correct |
15 |
Correct |
8 ms |
37980 KB |
Output is correct |
16 |
Correct |
9 ms |
37836 KB |
Output is correct |
17 |
Correct |
9 ms |
37980 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
9 ms |
37836 KB |
Output is correct |
2 |
Correct |
9 ms |
37980 KB |
Output is correct |
3 |
Correct |
181 ms |
48816 KB |
Output is correct |
4 |
Correct |
272 ms |
54940 KB |
Output is correct |
5 |
Correct |
258 ms |
55196 KB |
Output is correct |
6 |
Correct |
219 ms |
52968 KB |
Output is correct |
7 |
Correct |
243 ms |
53148 KB |
Output is correct |
8 |
Correct |
94 ms |
50400 KB |
Output is correct |
9 |
Correct |
263 ms |
55268 KB |
Output is correct |
10 |
Correct |
255 ms |
54540 KB |
Output is correct |
11 |
Correct |
232 ms |
52892 KB |
Output is correct |
12 |
Correct |
184 ms |
53128 KB |
Output is correct |
13 |
Correct |
192 ms |
55200 KB |
Output is correct |
14 |
Correct |
191 ms |
54632 KB |
Output is correct |
15 |
Correct |
195 ms |
52588 KB |
Output is correct |
16 |
Correct |
211 ms |
51880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
37980 KB |
Output is correct |
2 |
Correct |
764 ms |
135952 KB |
Output is correct |
3 |
Correct |
258 ms |
124940 KB |
Output is correct |
4 |
Correct |
673 ms |
132832 KB |
Output is correct |
5 |
Correct |
376 ms |
119824 KB |
Output is correct |
6 |
Correct |
213 ms |
101276 KB |
Output is correct |
7 |
Correct |
281 ms |
104200 KB |
Output is correct |
8 |
Correct |
167 ms |
52128 KB |
Output is correct |
9 |
Correct |
193 ms |
52456 KB |
Output is correct |
10 |
Correct |
110 ms |
68520 KB |
Output is correct |
11 |
Correct |
171 ms |
75240 KB |
Output is correct |
12 |
Correct |
760 ms |
136152 KB |
Output is correct |
13 |
Correct |
256 ms |
124768 KB |
Output is correct |
14 |
Correct |
700 ms |
132016 KB |
Output is correct |
15 |
Correct |
380 ms |
120140 KB |
Output is correct |
16 |
Correct |
207 ms |
100000 KB |
Output is correct |
17 |
Correct |
311 ms |
107932 KB |
Output is correct |
18 |
Correct |
592 ms |
136472 KB |
Output is correct |
19 |
Correct |
512 ms |
130620 KB |
Output is correct |
20 |
Correct |
624 ms |
136816 KB |
Output is correct |
21 |
Correct |
165 ms |
52028 KB |
Output is correct |
22 |
Correct |
201 ms |
52640 KB |
Output is correct |
23 |
Correct |
111 ms |
68472 KB |
Output is correct |
24 |
Correct |
171 ms |
76088 KB |
Output is correct |
25 |
Correct |
791 ms |
136164 KB |
Output is correct |
26 |
Correct |
250 ms |
124840 KB |
Output is correct |
27 |
Correct |
681 ms |
132260 KB |
Output is correct |
28 |
Correct |
380 ms |
120676 KB |
Output is correct |
29 |
Correct |
208 ms |
100576 KB |
Output is correct |
30 |
Correct |
302 ms |
107796 KB |
Output is correct |
31 |
Correct |
600 ms |
136120 KB |
Output is correct |
32 |
Correct |
522 ms |
130716 KB |
Output is correct |
33 |
Correct |
593 ms |
136820 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
37980 KB |
Output is correct |
2 |
Correct |
13 ms |
38236 KB |
Output is correct |
3 |
Correct |
15 ms |
37976 KB |
Output is correct |
4 |
Correct |
13 ms |
37980 KB |
Output is correct |
5 |
Correct |
13 ms |
38236 KB |
Output is correct |
6 |
Correct |
9 ms |
37980 KB |
Output is correct |
7 |
Correct |
9 ms |
37980 KB |
Output is correct |
8 |
Correct |
9 ms |
37980 KB |
Output is correct |
9 |
Correct |
9 ms |
37980 KB |
Output is correct |
10 |
Correct |
9 ms |
37980 KB |
Output is correct |
11 |
Correct |
12 ms |
37976 KB |
Output is correct |
12 |
Correct |
12 ms |
38268 KB |
Output is correct |
13 |
Correct |
12 ms |
38236 KB |
Output is correct |
14 |
Correct |
14 ms |
38508 KB |
Output is correct |
15 |
Correct |
8 ms |
37980 KB |
Output is correct |
16 |
Correct |
9 ms |
37836 KB |
Output is correct |
17 |
Correct |
9 ms |
37980 KB |
Output is correct |
18 |
Correct |
503 ms |
57508 KB |
Output is correct |
19 |
Correct |
123 ms |
42036 KB |
Output is correct |
20 |
Correct |
100 ms |
41532 KB |
Output is correct |
21 |
Correct |
96 ms |
41572 KB |
Output is correct |
22 |
Correct |
99 ms |
41700 KB |
Output is correct |
23 |
Correct |
119 ms |
42056 KB |
Output is correct |
24 |
Correct |
137 ms |
41556 KB |
Output is correct |
25 |
Correct |
119 ms |
41808 KB |
Output is correct |
26 |
Correct |
107 ms |
41992 KB |
Output is correct |
27 |
Correct |
270 ms |
54692 KB |
Output is correct |
28 |
Correct |
291 ms |
52384 KB |
Output is correct |
29 |
Correct |
302 ms |
55320 KB |
Output is correct |
30 |
Correct |
489 ms |
67544 KB |
Output is correct |
31 |
Correct |
11 ms |
37980 KB |
Output is correct |
32 |
Correct |
442 ms |
57252 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
37980 KB |
Output is correct |
2 |
Correct |
13 ms |
38236 KB |
Output is correct |
3 |
Correct |
15 ms |
37976 KB |
Output is correct |
4 |
Correct |
13 ms |
37980 KB |
Output is correct |
5 |
Correct |
13 ms |
38236 KB |
Output is correct |
6 |
Correct |
9 ms |
37980 KB |
Output is correct |
7 |
Correct |
9 ms |
37980 KB |
Output is correct |
8 |
Correct |
9 ms |
37980 KB |
Output is correct |
9 |
Correct |
9 ms |
37980 KB |
Output is correct |
10 |
Correct |
9 ms |
37980 KB |
Output is correct |
11 |
Correct |
12 ms |
37976 KB |
Output is correct |
12 |
Correct |
12 ms |
38268 KB |
Output is correct |
13 |
Correct |
12 ms |
38236 KB |
Output is correct |
14 |
Correct |
14 ms |
38508 KB |
Output is correct |
15 |
Correct |
8 ms |
37980 KB |
Output is correct |
16 |
Correct |
9 ms |
37836 KB |
Output is correct |
17 |
Correct |
9 ms |
37980 KB |
Output is correct |
18 |
Correct |
503 ms |
57508 KB |
Output is correct |
19 |
Correct |
123 ms |
42036 KB |
Output is correct |
20 |
Correct |
100 ms |
41532 KB |
Output is correct |
21 |
Correct |
96 ms |
41572 KB |
Output is correct |
22 |
Correct |
99 ms |
41700 KB |
Output is correct |
23 |
Correct |
119 ms |
42056 KB |
Output is correct |
24 |
Correct |
137 ms |
41556 KB |
Output is correct |
25 |
Correct |
119 ms |
41808 KB |
Output is correct |
26 |
Correct |
107 ms |
41992 KB |
Output is correct |
27 |
Correct |
270 ms |
54692 KB |
Output is correct |
28 |
Correct |
291 ms |
52384 KB |
Output is correct |
29 |
Correct |
302 ms |
55320 KB |
Output is correct |
30 |
Correct |
489 ms |
67544 KB |
Output is correct |
31 |
Correct |
11 ms |
37980 KB |
Output is correct |
32 |
Correct |
442 ms |
57252 KB |
Output is correct |
33 |
Correct |
764 ms |
135952 KB |
Output is correct |
34 |
Correct |
258 ms |
124940 KB |
Output is correct |
35 |
Correct |
673 ms |
132832 KB |
Output is correct |
36 |
Correct |
376 ms |
119824 KB |
Output is correct |
37 |
Correct |
213 ms |
101276 KB |
Output is correct |
38 |
Correct |
281 ms |
104200 KB |
Output is correct |
39 |
Correct |
167 ms |
52128 KB |
Output is correct |
40 |
Correct |
193 ms |
52456 KB |
Output is correct |
41 |
Correct |
110 ms |
68520 KB |
Output is correct |
42 |
Correct |
171 ms |
75240 KB |
Output is correct |
43 |
Correct |
760 ms |
136152 KB |
Output is correct |
44 |
Correct |
256 ms |
124768 KB |
Output is correct |
45 |
Correct |
700 ms |
132016 KB |
Output is correct |
46 |
Correct |
380 ms |
120140 KB |
Output is correct |
47 |
Correct |
207 ms |
100000 KB |
Output is correct |
48 |
Correct |
311 ms |
107932 KB |
Output is correct |
49 |
Correct |
592 ms |
136472 KB |
Output is correct |
50 |
Correct |
512 ms |
130620 KB |
Output is correct |
51 |
Correct |
624 ms |
136816 KB |
Output is correct |
52 |
Correct |
165 ms |
52028 KB |
Output is correct |
53 |
Correct |
201 ms |
52640 KB |
Output is correct |
54 |
Correct |
111 ms |
68472 KB |
Output is correct |
55 |
Correct |
171 ms |
76088 KB |
Output is correct |
56 |
Correct |
791 ms |
136164 KB |
Output is correct |
57 |
Correct |
250 ms |
124840 KB |
Output is correct |
58 |
Correct |
681 ms |
132260 KB |
Output is correct |
59 |
Correct |
380 ms |
120676 KB |
Output is correct |
60 |
Correct |
208 ms |
100576 KB |
Output is correct |
61 |
Correct |
302 ms |
107796 KB |
Output is correct |
62 |
Correct |
600 ms |
136120 KB |
Output is correct |
63 |
Correct |
522 ms |
130716 KB |
Output is correct |
64 |
Correct |
593 ms |
136820 KB |
Output is correct |
65 |
Correct |
181 ms |
48816 KB |
Output is correct |
66 |
Correct |
272 ms |
54940 KB |
Output is correct |
67 |
Correct |
258 ms |
55196 KB |
Output is correct |
68 |
Correct |
219 ms |
52968 KB |
Output is correct |
69 |
Correct |
243 ms |
53148 KB |
Output is correct |
70 |
Correct |
94 ms |
50400 KB |
Output is correct |
71 |
Correct |
263 ms |
55268 KB |
Output is correct |
72 |
Correct |
255 ms |
54540 KB |
Output is correct |
73 |
Correct |
232 ms |
52892 KB |
Output is correct |
74 |
Correct |
184 ms |
53128 KB |
Output is correct |
75 |
Correct |
192 ms |
55200 KB |
Output is correct |
76 |
Correct |
191 ms |
54632 KB |
Output is correct |
77 |
Correct |
195 ms |
52588 KB |
Output is correct |
78 |
Correct |
211 ms |
51880 KB |
Output is correct |
79 |
Correct |
449 ms |
55760 KB |
Output is correct |
80 |
Correct |
525 ms |
56464 KB |
Output is correct |
81 |
Correct |
359 ms |
71852 KB |
Output is correct |
82 |
Correct |
374 ms |
78872 KB |
Output is correct |
83 |
Correct |
984 ms |
140288 KB |
Output is correct |
84 |
Correct |
442 ms |
128780 KB |
Output is correct |
85 |
Correct |
827 ms |
135580 KB |
Output is correct |
86 |
Correct |
543 ms |
123736 KB |
Output is correct |
87 |
Correct |
369 ms |
103540 KB |
Output is correct |
88 |
Correct |
416 ms |
111776 KB |
Output is correct |
89 |
Correct |
727 ms |
139592 KB |
Output is correct |
90 |
Correct |
837 ms |
134060 KB |
Output is correct |
91 |
Correct |
937 ms |
140216 KB |
Output is correct |