oj.uz

Submission #676533

# Submission time Handle Problem Language Result Execution time Memory
676533 2022-12-31T08:07:22 Z ymm Land of the Rainbow Gold (APIO17_rainbow) C++17
12 / 100
 218 ms 145312 KB 
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;
#include "rainbow.h"

struct seg {
	vector<int> *t;
	
	void init(int sz) { t = new vector<int>[4*sz]; }
	
	void add(int p, int x, int i, int b, int e) {
		if (e-b == 1) {
			t[i].push_back(x);
			return;
		}
		if (p < (b+e)/2)
			add(p, x, 2*i+1, b, (b+e)/2);
		else
			add(p, x, 2*i+2, (b+e)/2, e);
	}
	void build(int i, int b, int e) {
		if (e-b == 1) {
			sort(t[i].begin(), t[i].end());
			auto it = unique(t[i].begin(), t[i].end());
			t[i].resize(it - t[i].begin());
			return;
		}
		build(2*i+1, b, (b+e)/2);
		build(2*i+2, (b+e)/2, e);
		merge(t[2*i+1].begin(), t[2*i+1].end(),
		      t[2*i+2].begin(), t[2*i+2].end(),
		      back_inserter(t[i]));
	}
	int get(int l1, int r1, int l2, int r2, int i, int b, int e) {
		if (l1 <= b && e <= r1) {
			return   lower_bound(t[i].begin(), t[i].end(), r2)
			       - lower_bound(t[i].begin(), t[i].end(), l2);
		}
		if (r1 <= b || e <= l1)
			return 0;
		return   get(l1, r1, l2, r2, 2*i+1, b, (b+e)/2)
		       + get(l1, r1, l2, r2, 2*i+2, (b+e)/2, e);
	}
} seg_edge_h, seg_edge_v, seg_node, seg_river;
int n, m;

void add_river(int i, int j)
{
	seg_edge_h.add(i, j, 0, 0, n+1);
	seg_edge_h.add(i+1, j, 0, 0, n+1);
	seg_edge_v.add(i, j, 0, 0, n+1);
	seg_edge_v.add(i, j+1, 0, 0, n+1);
	seg_node.add(i, j, 0, 0, n+1);
	seg_node.add(i, j+1, 0, 0, n+1);
	seg_node.add(i+1, j, 0, 0, n+1);
	seg_node.add(i+1, j+1, 0, 0, n+1);
	seg_river.add(i, j, 0, 0, n);
}

void init(int R, int C, int sr, int sc, int M, char *S)
{
	n = R; m = C;
	seg_edge_h.init(n+1);
	seg_edge_v.init(n+1);
	seg_node.init(n+1);
	seg_river.init(n);
	int x = sr - 1, y = sc - 1;
	add_river(x, y);
	Loop (i,0,M) {
		char c = S[i];
		x -= c == 'N';
		x += c == 'S';
		y -= c == 'W';
		y += c == 'E';
		add_river(x, y);
	}
	seg_edge_h.build(0, 0, n+1);
	seg_edge_v.build(0, 0, n+1);
	seg_node.build(0, 0, n+1);
	seg_river.build(0, 0, n);
}

int colour(int ar, int ac, int br, int bc)
{
	--ar; --ac;
	int edges = 0, nodes = 0, rivers = 0;
	edges += seg_edge_h.get(ar+1, br, ac, bc, 0, 0, n+1);
	edges += seg_edge_v.get(ar, br, ac+1, bc, 0, 0, n+1);
	edges += 2*(br - ar) + 2*(bc - ac);
	nodes += seg_node.get(ar+1, br, ac+1, bc, 0, 0, n+1);
	nodes += 2*(br - ar) + 2*(bc - ac);
	rivers += seg_river.get(ar, br, ac, bc, 0, 0, n);
	int ans = edges - nodes + 1 - rivers;
	return ans;
}

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 3 ms 596 KB Output is correct
3 Incorrect 2 ms 340 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 312 KB Output is correct
3 Correct 103 ms 8916 KB Output is correct
4 Correct 124 ms 12036 KB Output is correct
5 Correct 131 ms 12124 KB Output is correct
6 Correct 111 ms 11268 KB Output is correct
7 Correct 123 ms 11360 KB Output is correct
8 Correct 100 ms 8420 KB Output is correct
9 Correct 128 ms 12232 KB Output is correct
10 Correct 130 ms 12220 KB Output is correct
11 Correct 118 ms 11364 KB Output is correct
12 Correct 74 ms 12004 KB Output is correct
13 Correct 76 ms 12144 KB Output is correct
14 Correct 81 ms 12148 KB Output is correct
15 Correct 79 ms 11300 KB Output is correct
16 Correct 95 ms 9892 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 308 KB Output is correct
2 Correct 141 ms 121776 KB Output is correct
3 Correct 218 ms 145312 KB Output is correct
4 Correct 184 ms 140292 KB Output is correct
5 Correct 176 ms 123100 KB Output is correct
6 Correct 103 ms 89964 KB Output is correct
7 Incorrect 118 ms 98464 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #4
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 3 ms 596 KB Output is correct
3 Incorrect 2 ms 340 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 340 KB Output is correct
2 Correct 3 ms 596 KB Output is correct
3 Incorrect 2 ms 340 KB Output isn't correct
4 Halted 0 ms 0 KB -