oj.uz

Submission #288747

# Submission time Handle Problem Language Result Execution time Memory
288747 2020-09-01T20:46:08 Z Saboon Land of the Rainbow Gold (APIO17_rainbow) C++17
100 / 100
 1806 ms 96520 KB 
#include "rainbow.h"
#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 10;
map<char,int> adjr = {{'N', -1}, {'S', 1}};
map<char,int> adjc = {{'E', 1}, {'W', -1}};
set<pair<int,int>> Snake;
int R, C;
pair<int,int> Snakex, Snakey;

struct Segment2D{
	vector<int> fen[maxn], fex[maxn];
	vector<pair<int,int>> Q;
	int get(int X, int Y){
		int ret = 0;
		for (int x = X; x; x -= x & -x){
			int y = upper_bound(fex[x].begin(),fex[x].end(),Y)-fex[x].begin();
			for (; y; y -= y & -y)
				ret += fen[x][y-1];
		}
		return ret;
	}
	int get(int x1, int x2, int y1, int y2){
		if (x2 < x1 or y2 < y1)
			return 0;
		return get(x2, y2) - get(x2, y1-1) - get(x1-1, y2) + get(x1-1,y1-1);
	}
	void addreal(int X, int Y){
		for (int x = X; x < maxn; x += x & -x){
			int y = lower_bound(fex[x].begin(),fex[x].end(),Y)-fex[x].begin()+1;
			for (; y <= fen[x].size(); y += y & -y)
				fen[x][y-1] ++;
		}
	}
	void add(int X, int Y){
		for (int x = X; x < maxn; x += x & -x)
			fex[x].push_back(Y);
		Q.push_back({X,Y});
	}
	void build(){
		for (int i = 1; i < maxn; i++){
			sort(fex[i].begin(),fex[i].end());
			fex[i].resize(unique(fex[i].begin(),fex[i].end())-fex[i].begin());
			fen[i].resize(fex[i].size());
		}
		sort(Q.begin(),Q.end());
		Q.resize(unique(Q.begin(),Q.end())-Q.begin());
		for (auto it : Q)
			addreal(it.first, it.second);
	}
} seg[6];

void init(int r, int c, int sr, int sc, int M, char *S){
	R = r, C = c;
	Snake.insert({sr,sc});
	Snakex = {sr,sr};
	Snakey = {sc,sc};
	seg[0].add(sr,sc);
	for (int i = 0; i < M; i++){
		sr += adjr[S[i]], sc += adjc[S[i]];
		Snake.insert({sr,sc});
		seg[0].add(sr,sc);
		Snakex.first = min(Snakex.first,sr), Snakex.second = max(Snakex.second,sr);
		Snakey.first = min(Snakey.first,sc), Snakey.second = max(Snakey.second,sc);
	}
	for (auto it : Snake){
		int x = it.first, y = it.second;
		if (Snake.count({x-1,y}))
			seg[1].add(x,y);
		if (Snake.count({x,y-1}))
			seg[2].add(x,y);
		if (Snake.count({x,y-1}) and Snake.count({x-1,y}) and Snake.count({x-1,y-1}))
			seg[3].add(x,y);
		if (Snake.count({x-1,y-1}) and !Snake.count({x-1,y}) and !Snake.count({x,y-1}))
			seg[4].add(x,y);
		if (Snake.count({x-1,y+1}) and !Snake.count({x-1,y}) and !Snake.count({x,y+1}))
			seg[5].add(x,y+1);
	}
	for (int i = 0; i < 6; i++)
		seg[i].build();
}

int colour(int x1, int y1, int x2, int y2){
	int v = seg[0].get(x1, x2, y1, y2) + 2*(x2-x1+y2-y1+4);
	int e = seg[1].get(x1+1, x2, y1, y2) + seg[2].get(x1,x2, y1+1,y2)
		  + seg[0].get(x1, x1, y1, y2) + seg[0].get(x2, x2, y1, y2) + seg[0].get(x1, x2, y1, y1) + seg[0].get(x1, x2, y2, y2)
		  + 2*(x2-x1+y2-y1+4) + seg[4].get(x1+1, x2, y1+1, y2) + seg[5].get(x1+1, x2, y1+1, y2);
	int c = 1 + (Snakex.first > x1 and Snakex.second < x2 and Snakey.first > y1 and Snakey.second < y2);
	int f = seg[3].get(x1+1, x2, y1+1, y2) + seg[1].get(x1+1, x2, y1, y1) + seg[1].get(x1+1, x2, y2, y2)
		  + seg[2].get(x1, x1, y1+1, y2) + seg[2].get(x2, x2, y1+1, y2) + Snake.count({x1,y1}) + Snake.count({x1,y2})
		  + Snake.count({x2,y1}) + Snake.count({x2,y2});
	return c + e - v - f;
}

Compilation message

rainbow.cpp: In member function 'void Segment2D::addreal(int, int)':
rainbow.cpp:31:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |    for (; y <= fen[x].size(); y += y & -y)
      |           ~~^~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 56824 KB Output is correct
2 Correct 54 ms 57208 KB Output is correct
3 Correct 47 ms 56824 KB Output is correct
4 Correct 50 ms 56824 KB Output is correct
5 Correct 54 ms 57336 KB Output is correct
6 Correct 43 ms 56696 KB Output is correct
7 Correct 42 ms 56696 KB Output is correct
8 Correct 43 ms 56704 KB Output is correct
9 Correct 42 ms 56696 KB Output is correct
10 Correct 44 ms 56704 KB Output is correct
11 Correct 51 ms 57080 KB Output is correct
12 Correct 52 ms 57080 KB Output is correct
13 Correct 53 ms 57208 KB Output is correct
14 Correct 55 ms 57464 KB Output is correct
15 Correct 42 ms 56704 KB Output is correct
16 Correct 42 ms 56704 KB Output is correct
17 Correct 43 ms 56704 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 56704 KB Output is correct
2 Correct 43 ms 56704 KB Output is correct
3 Correct 603 ms 80840 KB Output is correct
4 Correct 983 ms 95508 KB Output is correct
5 Correct 980 ms 95496 KB Output is correct
6 Correct 859 ms 96520 KB Output is correct
7 Correct 773 ms 87308 KB Output is correct
8 Correct 175 ms 68756 KB Output is correct
9 Correct 956 ms 95440 KB Output is correct
10 Correct 977 ms 95380 KB Output is correct
11 Correct 898 ms 96328 KB Output is correct
12 Correct 646 ms 93268 KB Output is correct
13 Correct 632 ms 95376 KB Output is correct
14 Correct 666 ms 95276 KB Output is correct
15 Correct 696 ms 96372 KB Output is correct
16 Correct 690 ms 86796 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 56704 KB Output is correct
2 Correct 258 ms 76348 KB Output is correct
3 Correct 184 ms 81380 KB Output is correct
4 Correct 341 ms 84320 KB Output is correct
5 Correct 186 ms 75088 KB Output is correct
6 Correct 178 ms 67400 KB Output is correct
7 Correct 253 ms 70104 KB Output is correct
8 Correct 525 ms 83868 KB Output is correct
9 Correct 455 ms 80156 KB Output is correct
10 Correct 153 ms 63452 KB Output is correct
11 Correct 203 ms 67852 KB Output is correct
12 Correct 250 ms 76344 KB Output is correct
13 Correct 188 ms 81380 KB Output is correct
14 Correct 337 ms 84364 KB Output is correct
15 Correct 188 ms 75084 KB Output is correct
16 Correct 175 ms 66896 KB Output is correct
17 Correct 284 ms 73800 KB Output is correct
18 Correct 323 ms 76520 KB Output is correct
19 Correct 237 ms 80272 KB Output is correct
20 Correct 246 ms 81868 KB Output is correct
21 Correct 522 ms 83868 KB Output is correct
22 Correct 455 ms 80156 KB Output is correct
23 Correct 154 ms 63452 KB Output is correct
24 Correct 202 ms 67904 KB Output is correct
25 Correct 251 ms 76348 KB Output is correct
26 Correct 183 ms 81380 KB Output is correct
27 Correct 344 ms 84560 KB Output is correct
28 Correct 190 ms 75092 KB Output is correct
29 Correct 165 ms 66944 KB Output is correct
30 Correct 287 ms 73928 KB Output is correct
31 Correct 330 ms 76396 KB Output is correct
32 Correct 235 ms 80204 KB Output is correct
33 Correct 247 ms 81868 KB Output is correct

Subtask #4
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 56824 KB Output is correct
2 Correct 54 ms 57208 KB Output is correct
3 Correct 47 ms 56824 KB Output is correct
4 Correct 50 ms 56824 KB Output is correct
5 Correct 54 ms 57336 KB Output is correct
6 Correct 43 ms 56696 KB Output is correct
7 Correct 42 ms 56696 KB Output is correct
8 Correct 43 ms 56704 KB Output is correct
9 Correct 42 ms 56696 KB Output is correct
10 Correct 44 ms 56704 KB Output is correct
11 Correct 51 ms 57080 KB Output is correct
12 Correct 52 ms 57080 KB Output is correct
13 Correct 53 ms 57208 KB Output is correct
14 Correct 55 ms 57464 KB Output is correct
15 Correct 42 ms 56704 KB Output is correct
16 Correct 42 ms 56704 KB Output is correct
17 Correct 43 ms 56704 KB Output is correct
18 Correct 1777 ms 73660 KB Output is correct
19 Correct 718 ms 60920 KB Output is correct
20 Correct 496 ms 60280 KB Output is correct
21 Correct 554 ms 60536 KB Output is correct
22 Correct 602 ms 60664 KB Output is correct
23 Correct 619 ms 60920 KB Output is correct
24 Correct 727 ms 60792 KB Output is correct
25 Correct 699 ms 60792 KB Output is correct
26 Correct 709 ms 60792 KB Output is correct
27 Correct 997 ms 76224 KB Output is correct
28 Correct 1037 ms 73316 KB Output is correct
29 Correct 1054 ms 78272 KB Output is correct
30 Correct 1257 ms 80044 KB Output is correct
31 Correct 48 ms 56960 KB Output is correct
32 Correct 1440 ms 73788 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 56824 KB Output is correct
2 Correct 54 ms 57208 KB Output is correct
3 Correct 47 ms 56824 KB Output is correct
4 Correct 50 ms 56824 KB Output is correct
5 Correct 54 ms 57336 KB Output is correct
6 Correct 43 ms 56696 KB Output is correct
7 Correct 42 ms 56696 KB Output is correct
8 Correct 43 ms 56704 KB Output is correct
9 Correct 42 ms 56696 KB Output is correct
10 Correct 44 ms 56704 KB Output is correct
11 Correct 51 ms 57080 KB Output is correct
12 Correct 52 ms 57080 KB Output is correct
13 Correct 53 ms 57208 KB Output is correct
14 Correct 55 ms 57464 KB Output is correct
15 Correct 42 ms 56704 KB Output is correct
16 Correct 42 ms 56704 KB Output is correct
17 Correct 43 ms 56704 KB Output is correct
18 Correct 1777 ms 73660 KB Output is correct
19 Correct 718 ms 60920 KB Output is correct
20 Correct 496 ms 60280 KB Output is correct
21 Correct 554 ms 60536 KB Output is correct
22 Correct 602 ms 60664 KB Output is correct
23 Correct 619 ms 60920 KB Output is correct
24 Correct 727 ms 60792 KB Output is correct
25 Correct 699 ms 60792 KB Output is correct
26 Correct 709 ms 60792 KB Output is correct
27 Correct 997 ms 76224 KB Output is correct
28 Correct 1037 ms 73316 KB Output is correct
29 Correct 1054 ms 78272 KB Output is correct
30 Correct 1257 ms 80044 KB Output is correct
31 Correct 48 ms 56960 KB Output is correct
32 Correct 1440 ms 73788 KB Output is correct
33 Correct 258 ms 76348 KB Output is correct
34 Correct 184 ms 81380 KB Output is correct
35 Correct 341 ms 84320 KB Output is correct
36 Correct 186 ms 75088 KB Output is correct
37 Correct 178 ms 67400 KB Output is correct
38 Correct 253 ms 70104 KB Output is correct
39 Correct 525 ms 83868 KB Output is correct
40 Correct 455 ms 80156 KB Output is correct
41 Correct 153 ms 63452 KB Output is correct
42 Correct 203 ms 67852 KB Output is correct
43 Correct 250 ms 76344 KB Output is correct
44 Correct 188 ms 81380 KB Output is correct
45 Correct 337 ms 84364 KB Output is correct
46 Correct 188 ms 75084 KB Output is correct
47 Correct 175 ms 66896 KB Output is correct
48 Correct 284 ms 73800 KB Output is correct
49 Correct 323 ms 76520 KB Output is correct
50 Correct 237 ms 80272 KB Output is correct
51 Correct 246 ms 81868 KB Output is correct
52 Correct 522 ms 83868 KB Output is correct
53 Correct 455 ms 80156 KB Output is correct
54 Correct 154 ms 63452 KB Output is correct
55 Correct 202 ms 67904 KB Output is correct
56 Correct 251 ms 76348 KB Output is correct
57 Correct 183 ms 81380 KB Output is correct
58 Correct 344 ms 84560 KB Output is correct
59 Correct 190 ms 75092 KB Output is correct
60 Correct 165 ms 66944 KB Output is correct
61 Correct 287 ms 73928 KB Output is correct
62 Correct 330 ms 76396 KB Output is correct
63 Correct 235 ms 80204 KB Output is correct
64 Correct 247 ms 81868 KB Output is correct
65 Correct 1691 ms 87656 KB Output is correct
66 Correct 1806 ms 83736 KB Output is correct
67 Correct 1081 ms 66948 KB Output is correct
68 Correct 982 ms 71572 KB Output is correct
69 Correct 1022 ms 80216 KB Output is correct
70 Correct 900 ms 84964 KB Output is correct
71 Correct 1382 ms 87904 KB Output is correct
72 Correct 956 ms 78672 KB Output is correct
73 Correct 740 ms 70616 KB Output is correct
74 Correct 900 ms 77636 KB Output is correct
75 Correct 901 ms 80152 KB Output is correct
76 Correct 1096 ms 83916 KB Output is correct
77 Correct 877 ms 85452 KB Output is correct
78 Correct 603 ms 80840 KB Output is correct
79 Correct 983 ms 95508 KB Output is correct
80 Correct 980 ms 95496 KB Output is correct
81 Correct 859 ms 96520 KB Output is correct
82 Correct 773 ms 87308 KB Output is correct
83 Correct 175 ms 68756 KB Output is correct
84 Correct 956 ms 95440 KB Output is correct
85 Correct 977 ms 95380 KB Output is correct
86 Correct 898 ms 96328 KB Output is correct
87 Correct 646 ms 93268 KB Output is correct
88 Correct 632 ms 95376 KB Output is correct
89 Correct 666 ms 95276 KB Output is correct
90 Correct 696 ms 96372 KB Output is correct
91 Correct 690 ms 86796 KB Output is correct