oj.uz

답안 #794298

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
794298 2023-07-26T12:14:40 Z ymm 자리 배치 (IOI18_seats) C++17
100 / 100
 2614 ms 119120 KB 
#include "seats.h"
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (r); ++x)
typedef long long ll;
typedef std::pair<int,int> pii;
using namespace std;

const int N = 1<<20;
namespace seg {
	struct {
		int mn, cnt, val;
	} t[N*4];
	int sz;

	void merge(int i) {
		t[i].mn = min(t[2*i+1].mn, t[2*i+2].mn);
		t[i].cnt =   (t[2*i+1].mn == t[i].mn? t[2*i+1].cnt: 0)
		           + (t[2*i+2].mn == t[i].mn? t[2*i+2].cnt: 0);
		t[i].mn += t[i].val;
	}
	void add(int l, int r, int x, int i, int b, int e) {
		if (l <= b && e <= r) {
			t[i].mn += x;
			t[i].val += x;
			return;
		}
		if (r <= b || e <= l)
			return;
		add(l, r, x, 2*i+1, b, (b+e)/2);
		add(l, r, x, 2*i+2, (b+e)/2, e);
		merge(i);
	}
	void add(int l, int r, int x) { if (l < r) add(l, r, x, 0, 0, sz); }
	void init(int i, int b, int e) {
		t[i].mn = t[i].val = 0;
		t[i].cnt = e-b;
		if (e-b > 1) {
			init(2*i+1, b, (b+e)/2);
			init(2*i+2, (b+e)/2, e);
		}
	}
	void init(int n) { sz = n; init(0, 0, sz); }
}

vector<vector<int>> a;
pii pos[N];
int n, m;

bool in(int x, int y) { return 0 <= x && x < n && 0 <= y && y < m; }

void add_sq(int i, int j, int mul)
{
	vector<int> vec;
	Loop (x,i,i+2) Loop (y,j,j+2)
		vec.push_back(in(x, y)? a[x][y]: n*m);
	sort(vec.begin(), vec.end());
	seg::add(vec[0], vec[1], mul);
	seg::add(vec[2], vec[3], mul);
}

void add_adj(int i, int j, int mul)
{
	Loop (x,i-1,i+1) Loop (y,j-1,j+1)
		add_sq(x, y, mul);
}

void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) {
	n = H;
	m = W;
	a.assign(n, vector<int>(m));
	Loop (i,0,n*m) {
		pos[i] = {R[i], C[i]};
		a[R[i]][C[i]] = i;
	}
	seg::init(n*m);
	Loop (i,-1,n+1) Loop (j,-1,m+1)
		add_sq(i, j, 1);
}

int swap_seats(int a, int b) {
	auto [x1, y1] = pos[a];
	auto [x2, y2] = pos[b];
	add_adj(x1, y1, -1);
	::a[x1][y1] = b;
	add_adj(x1, y1, 1);
	add_adj(x2, y2, -1);
	::a[x2][y2] = a;
	add_adj(x2, y2, 1);
	swap(pos[a], pos[b]);
	return seg::t[0].cnt;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 340 KB Output is correct
2 Correct 23 ms 444 KB Output is correct
3 Correct 32 ms 424 KB Output is correct
4 Correct 21 ms 432 KB Output is correct
5 Correct 19 ms 456 KB Output is correct
6 Correct 31 ms 440 KB Output is correct
7 Correct 30 ms 428 KB Output is correct
8 Correct 28 ms 468 KB Output is correct
9 Correct 27 ms 424 KB Output is correct
10 Correct 33 ms 464 KB Output is correct
11 Correct 29 ms 444 KB Output is correct
12 Correct 20 ms 468 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 340 KB Output is correct
2 Correct 23 ms 444 KB Output is correct
3 Correct 32 ms 424 KB Output is correct
4 Correct 21 ms 432 KB Output is correct
5 Correct 19 ms 456 KB Output is correct
6 Correct 31 ms 440 KB Output is correct
7 Correct 30 ms 428 KB Output is correct
8 Correct 28 ms 468 KB Output is correct
9 Correct 27 ms 424 KB Output is correct
10 Correct 33 ms 464 KB Output is correct
11 Correct 29 ms 444 KB Output is correct
12 Correct 20 ms 468 KB Output is correct
13 Correct 65 ms 1176 KB Output is correct
14 Correct 72 ms 1180 KB Output is correct
15 Correct 44 ms 1208 KB Output is correct
16 Correct 38 ms 1692 KB Output is correct
17 Correct 66 ms 1200 KB Output is correct
18 Correct 52 ms 1188 KB Output is correct
19 Correct 51 ms 1196 KB Output is correct
20 Correct 45 ms 1344 KB Output is correct
21 Correct 37 ms 1228 KB Output is correct
22 Correct 46 ms 1704 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1633 ms 52412 KB Output is correct
2 Correct 1041 ms 68364 KB Output is correct
3 Correct 952 ms 68364 KB Output is correct
4 Correct 877 ms 68364 KB Output is correct
5 Correct 913 ms 68360 KB Output is correct
6 Correct 786 ms 68364 KB Output is correct
7 Correct 921 ms 68368 KB Output is correct
8 Correct 886 ms 68360 KB Output is correct
9 Correct 902 ms 68360 KB Output is correct
10 Correct 861 ms 68364 KB Output is correct

Subtask #4
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 1012 KB Output is correct
2 Correct 146 ms 5904 KB Output is correct
3 Correct 883 ms 52408 KB Output is correct
4 Correct 1645 ms 68356 KB Output is correct
5 Correct 927 ms 68376 KB Output is correct
6 Correct 1782 ms 119120 KB Output is correct
7 Correct 908 ms 68324 KB Output is correct
8 Correct 925 ms 68364 KB Output is correct
9 Correct 811 ms 68796 KB Output is correct
10 Correct 886 ms 71448 KB Output is correct
11 Correct 949 ms 91808 KB Output is correct

Subtask #5
33.0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 107 ms 1280 KB Output is correct
2 Correct 136 ms 1356 KB Output is correct
3 Correct 212 ms 1344 KB Output is correct
4 Correct 260 ms 1296 KB Output is correct
5 Correct 340 ms 1904 KB Output is correct
6 Correct 1418 ms 52728 KB Output is correct
7 Correct 1559 ms 52736 KB Output is correct
8 Correct 1297 ms 52728 KB Output is correct
9 Correct 2261 ms 52732 KB Output is correct
10 Correct 1318 ms 52628 KB Output is correct
11 Correct 1291 ms 52724 KB Output is correct
12 Correct 1285 ms 52732 KB Output is correct

Subtask #6
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 340 KB Output is correct
2 Correct 23 ms 444 KB Output is correct
3 Correct 32 ms 424 KB Output is correct
4 Correct 21 ms 432 KB Output is correct
5 Correct 19 ms 456 KB Output is correct
6 Correct 31 ms 440 KB Output is correct
7 Correct 30 ms 428 KB Output is correct
8 Correct 28 ms 468 KB Output is correct
9 Correct 27 ms 424 KB Output is correct
10 Correct 33 ms 464 KB Output is correct
11 Correct 29 ms 444 KB Output is correct
12 Correct 20 ms 468 KB Output is correct
13 Correct 65 ms 1176 KB Output is correct
14 Correct 72 ms 1180 KB Output is correct
15 Correct 44 ms 1208 KB Output is correct
16 Correct 38 ms 1692 KB Output is correct
17 Correct 66 ms 1200 KB Output is correct
18 Correct 52 ms 1188 KB Output is correct
19 Correct 51 ms 1196 KB Output is correct
20 Correct 45 ms 1344 KB Output is correct
21 Correct 37 ms 1228 KB Output is correct
22 Correct 46 ms 1704 KB Output is correct
23 Correct 1633 ms 52412 KB Output is correct
24 Correct 1041 ms 68364 KB Output is correct
25 Correct 952 ms 68364 KB Output is correct
26 Correct 877 ms 68364 KB Output is correct
27 Correct 913 ms 68360 KB Output is correct
28 Correct 786 ms 68364 KB Output is correct
29 Correct 921 ms 68368 KB Output is correct
30 Correct 886 ms 68360 KB Output is correct
31 Correct 902 ms 68360 KB Output is correct
32 Correct 861 ms 68364 KB Output is correct
33 Correct 69 ms 1012 KB Output is correct
34 Correct 146 ms 5904 KB Output is correct
35 Correct 883 ms 52408 KB Output is correct
36 Correct 1645 ms 68356 KB Output is correct
37 Correct 927 ms 68376 KB Output is correct
38 Correct 1782 ms 119120 KB Output is correct
39 Correct 908 ms 68324 KB Output is correct
40 Correct 925 ms 68364 KB Output is correct
41 Correct 811 ms 68796 KB Output is correct
42 Correct 886 ms 71448 KB Output is correct
43 Correct 949 ms 91808 KB Output is correct
44 Correct 107 ms 1280 KB Output is correct
45 Correct 136 ms 1356 KB Output is correct
46 Correct 212 ms 1344 KB Output is correct
47 Correct 260 ms 1296 KB Output is correct
48 Correct 340 ms 1904 KB Output is correct
49 Correct 1418 ms 52728 KB Output is correct
50 Correct 1559 ms 52736 KB Output is correct
51 Correct 1297 ms 52728 KB Output is correct
52 Correct 2261 ms 52732 KB Output is correct
53 Correct 1318 ms 52628 KB Output is correct
54 Correct 1291 ms 52724 KB Output is correct
55 Correct 1285 ms 52732 KB Output is correct
56 Correct 175 ms 1960 KB Output is correct
57 Correct 315 ms 2120 KB Output is correct
58 Correct 501 ms 2764 KB Output is correct
59 Correct 1531 ms 69196 KB Output is correct
60 Correct 2614 ms 69320 KB Output is correct
61 Correct 1480 ms 69440 KB Output is correct
62 Correct 1307 ms 69276 KB Output is correct
63 Correct 2494 ms 69292 KB Output is correct
64 Correct 1724 ms 69316 KB Output is correct
65 Correct 1573 ms 69320 KB Output is correct
66 Correct 1635 ms 69692 KB Output is correct
67 Correct 1718 ms 72416 KB Output is correct
68 Correct 1508 ms 83632 KB Output is correct
69 Correct 2503 ms 92764 KB Output is correct