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Submission #466299

# Submission time Handle Problem Language Result Execution time Memory
466299 2021-08-18T13:30:19 Z Namnamseo Land of the Rainbow Gold (APIO17_rainbow) C++17
36 / 100
 296 ms 119304 KB 
#include "rainbow.h"
#include <algorithm>
#include <vector>
#include <tuple>
#define x first
#define y second
#define pb push_back
#define all(v) (v).begin(), (v).end()
#define sort_and_unique(v) { sort(all(v)); v.erase(unique(all(v)), v.end()); }
using namespace std;
using pp=pair<int,int>;
using ll=long long;

const int maxm = int(1e5) + 10;

vector<pp> riv, eh, ev, e4;
void River(int sx, int sy, int m, char *s) {
	riv.resize(m+1);
	for (int i=0; i<m; ++i) {
		riv[i] = {sx, sy};
		if (s[i] == 'S') ++sx; else if (s[i] == 'N') --sx;
		else if (s[i] == 'E') ++sy; else --sy;
	}
	riv[m++] = {sx, sy};
	sort_and_unique(riv); m = riv.size();
	eh = riv; ev = riv; eh.resize(2*m); ev.resize(2*m);
	for (int i=0, x, y; i<m; ++i) { tie(x, y) = riv[i];
		eh[m+i] = {x, y-1}; ev[m+i] = {x-1, y};
	}
	sort_and_unique(eh); sort_and_unique(ev);
	e4 = riv; e4.resize(4*m);
	for (int i=0, j=m, x, y; i<m; ++i) { tie(x, y) = riv[i];
		e4[j++] = {x-1, y};
		e4[j++] = {x, y-1};
		e4[j++] = {x-1, y-1};
	}
	sort_and_unique(e4);
}

struct MST {
	const static int M = 262144;
	vector<int> t[M<<1];
	void put(int x, int y) { t[M+x].pb(y); }
	void init() {
		for (int i=0; i<M; ++i) sort(all(t[M+i]));
		for (int i=M-1; 1<=i; --i) {
			static int tmp[4*maxm];
			t[i] = vector<int>(tmp, merge(all(t[i*2]), all(t[i*2+1]), tmp));
		}
	}
	int rq(int l, int r, int d, int u) { if (d>u) return 0;
		int x = 0;
		auto vq = [&](const vector<int> &v) -> int {
			return upper_bound(all(v), u) - lower_bound(all(v), d);
		};
		for (l+=M, r+=M; l<=r; l/=2, r/=2) {
			if (l%2 == 1) x += vq(t[l++]);
			if (r%2 == 0) x += vq(t[r--]);
		}
		return x;
	}
} triv, teh, tev, te4;

void Write() {
#define wr(v, t) for (auto &tmp:v) t.put(tmp.x, tmp.y); t.init();
	wr(riv, triv);
	wr(eh, teh);
	wr(ev, tev);
	wr(e4, te4);
#undef wr
}

pp rmn, rmx;
void init(int R, int C, int sr, int sc, int M, char *S) {
	River(sr, sc, M, S);
	Write();
	rmn = {1e9, 1e9};
	rmx = {-1e9, -1e9};
	for (auto &tmp:riv) {
		rmn.x = min(rmn.x, tmp.x);
		rmn.y = min(rmn.y, tmp.y);
		rmx.x = max(rmx.x, tmp.x);
		rmx.y = max(rmx.y, tmp.y);
	}
}

int colour(int ar, int ac, int br, int bc) {
	ll w = br-ar+1, h = bc-ac+1;
	ll inv = w * h;
	ll ine = (w-1)*h + w*(h-1);
	ll inf = (w-1)*(h-1);

	inv -= triv.rq(ar, br, ac, bc);
	ine -= teh.rq(ar, br, ac, bc-1);
	ine -= tev.rq(ar, br-1, ac, bc);
	inf -= te4.rq(ar, br-1, ac, bc-1);

	if (ar < rmn.x && rmx.x < br &&
		ac < rmn.y && rmn.y < bc) ++inf;

    return inv - ine + inf;
}

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 49600 KB Output is correct
2 Correct 38 ms 49956 KB Output is correct
3 Incorrect 38 ms 49612 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 36 ms 49576 KB Output is correct
2 Correct 37 ms 49512 KB Output is correct
3 Correct 213 ms 81852 KB Output is correct
4 Correct 262 ms 103256 KB Output is correct
5 Correct 265 ms 102844 KB Output is correct
6 Correct 245 ms 91156 KB Output is correct
7 Correct 245 ms 90240 KB Output is correct
8 Correct 105 ms 51204 KB Output is correct
9 Correct 281 ms 103252 KB Output is correct
10 Correct 296 ms 102828 KB Output is correct
11 Correct 243 ms 91164 KB Output is correct
12 Correct 208 ms 99308 KB Output is correct
13 Correct 215 ms 103332 KB Output is correct
14 Correct 206 ms 102936 KB Output is correct
15 Correct 232 ms 91292 KB Output is correct
16 Correct 208 ms 87840 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 49484 KB Output is correct
2 Correct 134 ms 102624 KB Output is correct
3 Correct 205 ms 119304 KB Output is correct
4 Correct 188 ms 108708 KB Output is correct
5 Correct 170 ms 97632 KB Output is correct
6 Correct 82 ms 60612 KB Output is correct
7 Correct 100 ms 70796 KB Output is correct
8 Correct 137 ms 97044 KB Output is correct
9 Correct 128 ms 91700 KB Output is correct
10 Correct 68 ms 60584 KB Output is correct
11 Correct 97 ms 76072 KB Output is correct
12 Correct 132 ms 102564 KB Output is correct
13 Correct 233 ms 119240 KB Output is correct
14 Correct 191 ms 108708 KB Output is correct
15 Correct 157 ms 97724 KB Output is correct
16 Correct 66 ms 58580 KB Output is correct
17 Correct 103 ms 70932 KB Output is correct
18 Correct 158 ms 102820 KB Output is correct
19 Correct 163 ms 110632 KB Output is correct
20 Correct 167 ms 110636 KB Output is correct
21 Correct 134 ms 97084 KB Output is correct
22 Correct 127 ms 91748 KB Output is correct
23 Correct 73 ms 60540 KB Output is correct
24 Correct 99 ms 75988 KB Output is correct
25 Correct 140 ms 102568 KB Output is correct
26 Correct 208 ms 119304 KB Output is correct
27 Correct 191 ms 108708 KB Output is correct
28 Correct 158 ms 97692 KB Output is correct
29 Correct 69 ms 58608 KB Output is correct
30 Correct 110 ms 70932 KB Output is correct
31 Correct 155 ms 102852 KB Output is correct
32 Correct 160 ms 110628 KB Output is correct
33 Correct 169 ms 110636 KB Output is correct

Subtask #4
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 49600 KB Output is correct
2 Correct 38 ms 49956 KB Output is correct
3 Incorrect 38 ms 49612 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 49600 KB Output is correct
2 Correct 38 ms 49956 KB Output is correct
3 Incorrect 38 ms 49612 KB Output isn't correct
4 Halted 0 ms 0 KB -