oj.uz

Submission #403090

# Submission time Handle Problem Language Result Execution time Memory
403090 2021-05-12T18:08:02 Z BERNARB01 Land of the Rainbow Gold (APIO17_rainbow) C++17
0 / 100
 157 ms 4556 KB 
#include "rainbow.h"
#include <bits/stdc++.h>

using namespace std;

const int N = 1002;
const int maxN = (int) 2e5 + 9;

int sub = 1;

int a[N][N], vis[N][N], done[N][N], u, l, d, r, sum1[maxN], sum2[maxN], sum12[maxN], vis2[2][maxN];

array<int, 4> di = {0, 0, 1, -1};
array<int, 4> dj = {1, -1, 0, 0};


bool valid(int i, int j) {
	return (u <= i && i <= d && l <= j && j <= r && !vis[i][j] && !done[i][j]);
}

void dfs(int i, int j) {
	done[i][j] = 1;
	for (int k = 0; k < 4; k++) {
		int ni = i + di[k];
		int nj = j + dj[k];
		if (valid(ni, nj)) {
			dfs(ni, nj);
		}
	}
}

int isNew(int i) {
	if ((!vis2[0][i] || !vis2[1][i]) && (vis2[0][i - 1] && vis2[1][i - 1])) {
		// 10    11   10
		// 11    10   10
		return 1;
	}
	if ((!vis2[0][i] || !vis2[1][i]) && vis2[0][i] != vis2[0][i - 1] && vis2[1][i] != vis2[1][i - 1]) {
		// 01    10
		// 10    01
		return 1;
	}
	return 0;
}

void init(int R, int C, int sr, int sc, int M, char *S) {
	if (R == 2) {
		sub = 2;
	}
	u = 1; d = R;
	l = 1; r = C;
	if (sub == 2) {
		vis2[sr][sc] = 1;
	} else {
		vis[sr][sc] = 1;
	}
	for (int i = 0; i < M; i++) {
		if (S[i] == 'N') {
			sr--;
		} else if (S[i] == 'S') {
			sr++;
		} else if (S[i] == 'E') {
			sc++;
		} else {
			sc--;
		}
		if (sub == 2) {
			vis2[sr][sc] = 1;
		} else {
			vis[sr][sc] = 1;
		}
	}
	if (sub == 2) {
		vis2[0][0] = vis2[1][0] = 1;
		for (int i = 1; i <= C; i++) {
			sum1[i] = sum1[i - 1] + vis2[0][i];
			sum2[i] = sum2[i - 1] + vis2[1][i];
			sum12[i] = sum12[i - 1] + isNew(i);
		}
	}
}

int colour(int ar, int ac, int br, int bc) {
	u = ar; d = br;
	l = ac; r = bc;
	int ans = 0;
	if (sub == 2) {
		int len = (r - l + 1);
		if (u == d) {
			if (d == 1) {
				return len - (sum1[r] - sum1[l - 1]);
			} else {
				return len - (sum2[r] - sum2[l - 1]);
			}
		} else {
			return (sum12[r] - sum12[l - 1]) + ((!vis2[0][l] || !vis2[1][l]) && !isNew(l));
		}
	}
	for (int i = u; i <= d; i++) {
		for (int j = l; j <= r; j++) {
			if (!vis[i][j] && !done[i][j]) {
				dfs(i, j);
				ans++;
			}
		}
	}
	memset(done, 0, sizeof done);
	return ans;
}

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 143 ms 4300 KB Output is correct
2 Correct 146 ms 4436 KB Output is correct
3 Correct 156 ms 4556 KB Output is correct
4 Correct 157 ms 4428 KB Output is correct
5 Correct 145 ms 4440 KB Output is correct
6 Correct 4 ms 4172 KB Output is correct
7 Correct 4 ms 4248 KB Output is correct
8 Correct 3 ms 4172 KB Output is correct
9 Correct 3 ms 4172 KB Output is correct
10 Correct 3 ms 4172 KB Output is correct
11 Correct 155 ms 4464 KB Output is correct
12 Correct 150 ms 4488 KB Output is correct
13 Correct 150 ms 4476 KB Output is correct
14 Correct 145 ms 4428 KB Output is correct
15 Correct 2 ms 4172 KB Output is correct
16 Incorrect 1 ms 332 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4172 KB Output is correct
2 Runtime error 2 ms 632 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #4
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 143 ms 4300 KB Output is correct
2 Correct 146 ms 4436 KB Output is correct
3 Correct 156 ms 4556 KB Output is correct
4 Correct 157 ms 4428 KB Output is correct
5 Correct 145 ms 4440 KB Output is correct
6 Correct 4 ms 4172 KB Output is correct
7 Correct 4 ms 4248 KB Output is correct
8 Correct 3 ms 4172 KB Output is correct
9 Correct 3 ms 4172 KB Output is correct
10 Correct 3 ms 4172 KB Output is correct
11 Correct 155 ms 4464 KB Output is correct
12 Correct 150 ms 4488 KB Output is correct
13 Correct 150 ms 4476 KB Output is correct
14 Correct 145 ms 4428 KB Output is correct
15 Correct 2 ms 4172 KB Output is correct
16 Incorrect 1 ms 332 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 143 ms 4300 KB Output is correct
2 Correct 146 ms 4436 KB Output is correct
3 Correct 156 ms 4556 KB Output is correct
4 Correct 157 ms 4428 KB Output is correct
5 Correct 145 ms 4440 KB Output is correct
6 Correct 4 ms 4172 KB Output is correct
7 Correct 4 ms 4248 KB Output is correct
8 Correct 3 ms 4172 KB Output is correct
9 Correct 3 ms 4172 KB Output is correct
10 Correct 3 ms 4172 KB Output is correct
11 Correct 155 ms 4464 KB Output is correct
12 Correct 150 ms 4488 KB Output is correct
13 Correct 150 ms 4476 KB Output is correct
14 Correct 145 ms 4428 KB Output is correct
15 Correct 2 ms 4172 KB Output is correct
16 Incorrect 1 ms 332 KB Output isn't correct
17 Halted 0 ms 0 KB -