답안 #53842 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
53842	2018-07-01T09:23:35 Z	ainta(#1540)	Sandwich (JOI16_sandwich)	C++11	35 / 100	8000 ms	42696 KB

sandwich

#include<cstdio>
#include<algorithm>
#include<vector>
#include<bitset>
using namespace std;
int n, m, Q[330000], Deg[330000], head, tail, Res[330000], cur, ord[330000], cnt,vis[330000];
char p[410][410];
vector<int>E[330000], F[330000];
int Num(int x, int y, int ck) {
	if (x<1 || x>n || y<1 || y>m)return 0;
	int cc = 0;
	if (p[x][y] == 'N') {
		if (ck == 0 || ck == 3)cc = 1;
		else cc = 2;
	}
	else {
		if (ck == 0 || ck == 2)cc = 1;
		else cc = 2;
	}
	return ((x - 1)*m + (y - 1)) * 2 + cc;
}
void Add_Edge(int a, int b) {
	if (!a || !b)return;
	E[a].push_back(b);
	Deg[a]++;
	F[b].push_back(a);
}
int main() {
	int i, j;
	//freopen("input.txt", "r", stdin);
	scanf("%d%d", &n, &m);
	for (i = 1; i <= n; i++) {
		scanf("%s", p[i] + 1);
	}
	for (i = 1; i <= n; i++) {
		for (j = 1; j <= m; j++) {
			Add_Edge(Num(i, j, 0), Num(i - 1, j, 0));
			Add_Edge(Num(i, j, 1), Num(i + 1, j, 1));
			Add_Edge(Num(i, j, 2), Num(i, j - 1, 2));
			Add_Edge(Num(i, j, 3), Num(i, j + 1, 3));
		}
	}
	for (i = 1; i <= n*m * 2; i++) {
		if (!Deg[i])Q[++tail] = i;
	}
	while (head < tail) {
		int x = Q[++head];
		for (auto &t : F[x]) {
			Deg[t]--;
			if (!Deg[t])Q[++tail] = t;
		}
	}
	for (i = 1; i <= tail; i++)ord[++cnt] = Q[i];
	for (i = 1; i <= n; i++) {
		cur++;
		for (j = 1; j <= m; j++) {
			int bs = Num(i,j,3);
			head = tail = 0;
			if (vis[bs] != cur && !Deg[bs]) {
				vis[bs] = cur, Res[bs] += m-j+1;
				Q[++tail] = bs;
			}
			while (head < tail) {
				int x = Q[++head];
				for (auto &t : F[x]) {
					if (vis[t] != cur && !Deg[t]) {
						vis[t] = cur, Res[t]  += m-j+1;
						Q[++tail] = t;
					}
				}
			}
		}
		cur++;
		for (j = m; j >= 1; j--) {
			int bs = Num(i, j, 2);
			head = tail = 0;
			if (vis[bs] != cur && !Deg[bs]) {
				vis[bs] = cur, Res[bs] += j;
				Q[++tail] = bs;
			}
			while (head < tail) {
				int x = Q[++head];
				for (auto &t : F[x]) {
					if (vis[t] != cur && !Deg[t]) {
						vis[t] = cur, Res[t] += j;
						Q[++tail] = t;
					}
				}
			}
		}
	}
	for (i = 1; i <= n; i++) {
		for (j = 1; j <= m; j++) {
			int bs = ((i - 1)*m + j - 1) * 2, res = 1e9;
			if (!Deg[bs + 1])res = min(res, Res[bs + 1]);
			if (!Deg[bs + 2])res = min(res, Res[bs + 2]);
			if (res > 8e8)res = -1;
			else res *= 2;
			printf("%d ", res);
		}
		printf("\n");
	}
}

Compilation message

sandwich.cpp: In function 'int main()':
sandwich.cpp:31:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
sandwich.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", p[i] + 1);
   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	15864 KB	Output is correct
2	Correct	14 ms	15976 KB	Output is correct
3	Correct	14 ms	15976 KB	Output is correct
4	Correct	14 ms	15976 KB	Output is correct
5	Correct	14 ms	16108 KB	Output is correct
6	Correct	18 ms	16384 KB	Output is correct
7	Correct	21 ms	16544 KB	Output is correct
8	Correct	23 ms	16544 KB	Output is correct
9	Correct	21 ms	16544 KB	Output is correct
10	Correct	24 ms	16544 KB	Output is correct
11	Correct	32 ms	16564 KB	Output is correct
12	Correct	19 ms	16564 KB	Output is correct
13	Correct	29 ms	16564 KB	Output is correct
14	Correct	28 ms	16564 KB	Output is correct
15	Correct	28 ms	16564 KB	Output is correct
16	Correct	20 ms	16564 KB	Output is correct
17	Correct	24 ms	16564 KB	Output is correct
18	Correct	24 ms	16564 KB	Output is correct
19	Correct	22 ms	16564 KB	Output is correct
20	Correct	20 ms	16564 KB	Output is correct
21	Correct	18 ms	16564 KB	Output is correct
22	Correct	17 ms	16572 KB	Output is correct
23	Correct	16 ms	16576 KB	Output is correct
24	Correct	24 ms	16576 KB	Output is correct
25	Correct	27 ms	16576 KB	Output is correct
26	Correct	24 ms	16576 KB	Output is correct
27	Correct	18 ms	16576 KB	Output is correct
28	Correct	22 ms	16576 KB	Output is correct

Subtask #2
0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	15864 KB	Output is correct
2	Correct	14 ms	15976 KB	Output is correct
3	Correct	14 ms	15976 KB	Output is correct
4	Correct	14 ms	15976 KB	Output is correct
5	Correct	14 ms	16108 KB	Output is correct
6	Correct	18 ms	16384 KB	Output is correct
7	Correct	21 ms	16544 KB	Output is correct
8	Correct	23 ms	16544 KB	Output is correct
9	Correct	21 ms	16544 KB	Output is correct
10	Correct	24 ms	16544 KB	Output is correct
11	Correct	32 ms	16564 KB	Output is correct
12	Correct	19 ms	16564 KB	Output is correct
13	Correct	29 ms	16564 KB	Output is correct
14	Correct	28 ms	16564 KB	Output is correct
15	Correct	28 ms	16564 KB	Output is correct
16	Correct	20 ms	16564 KB	Output is correct
17	Correct	24 ms	16564 KB	Output is correct
18	Correct	24 ms	16564 KB	Output is correct
19	Correct	22 ms	16564 KB	Output is correct
20	Correct	20 ms	16564 KB	Output is correct
21	Correct	18 ms	16564 KB	Output is correct
22	Correct	17 ms	16572 KB	Output is correct
23	Correct	16 ms	16576 KB	Output is correct
24	Correct	24 ms	16576 KB	Output is correct
25	Correct	27 ms	16576 KB	Output is correct
26	Correct	24 ms	16576 KB	Output is correct
27	Correct	18 ms	16576 KB	Output is correct
28	Correct	22 ms	16576 KB	Output is correct
29	Correct	14 ms	16576 KB	Output is correct
30	Correct	16 ms	16576 KB	Output is correct
31	Correct	140 ms	38076 KB	Output is correct
32	Correct	146 ms	38148 KB	Output is correct
33	Correct	56 ms	38148 KB	Output is correct
34	Execution timed out	8071 ms	42696 KB	Time limit exceeded
35	Halted	0 ms	0 KB	-

답안 #53842

Compilation message

Subtask #1 35.0 / 35.0

Subtask #2 0 / 65.0

Subtask #1
35.0 / 35.0

Subtask #2
0 / 65.0