#include <bits/stdc++.h>
#define pb push_back
#define eb emplace_back
#define sz(V) ((int)(V).size())
#define allv(V) ((V).begin()),((V).end())
#define befv(V) ((V)[(sz(V)-2)])
#define sorv(V) sort(allv(V))
#define revv(V) reverse(allv(V))
#define univ(V) (V).erase(unique(allv(V)),(V).end())
#define clv(V) (V).clear()
#define upmin(a,b) (a)=min((a),(b))
#define upmax(a,b) (a)=max((a),(b))
#define INF (0x3f3f3f3f)
#define INFLL (0x3f3f3f3f3f3f3f3fll)
using namespace std;
typedef long long ll;
const int MAXH = 405;
const int MAXW = 405;
int dp[2][MAXH][MAXW];
bitset<(MAXH<<12)> chk, isp;
int CNT;
char A[MAXH][MAXW];
int H, W;
int g(char c, int dr) {
if('N' == c) return !!(dr < 2);
if('Z' == c) return !!(dr && dr < 3);
return 0;
}
void f(int t, int y, int x) {
if(chk[(y<<10)+x]) return;
chk[(y<<10)+x] = true; CNT++;
int ax = (t ? x+1 : x-1), by = ((!!t == ('N' == A[y][x])) ? y-1 : y+1);
int at = !g(A[y][ax], x < ax ? 3 : 1), bt = !g(A[by][x], y < by ? 0 : 2);
f(at, y, ax); f(bt, by, x);
isp[(y<<10)+x] = (isp[(y<<10)+ax] && isp[(by<<10)+x]);
}
void init() {
chk.reset(); isp.reset();
for(int i = 0; i <= H+1; i++)
chk[i<<10] = chk[(i<<10)+W+1] = isp[i<<10] = isp[(i<<10)+W+1] = true;
for(int i = 0; i <= W+1; i++)
chk[i] = chk[((H+1)<<10)+i] = isp[i] = isp[((H+1)<<10)+i] = true;
CNT = 0;
}
int main() {
scanf("%d%d", &H, &W);
for(int i = 1; i <= H; i++) scanf(" %s", A[i]+1);
for(int y = 1; y <= H; y++) {
init();
for(int x = 1; x <= W; x++) {
f(0, y, x);
dp[0][y][x] = isp[(y<<10)+x] ? CNT : INF;
}
init();
for(int x = W; x; x--) {
f(1, y, x);
dp[1][y][x] = isp[(y<<10)+x] ? CNT : INF;
}
}
for(int i = 1; i <= H; i++) {
for(int j = 1; j <= W; j++) {
int t = min(dp[0][i][j], dp[1][i][j]);
printf("%d ", INF <= t ? -1 : t*2);
}
puts("");
}
return 0;
}
Compilation message
sandwich.cpp: In function 'int main()':
sandwich.cpp:57:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &H, &W);
~~~~~^~~~~~~~~~~~~~~~
sandwich.cpp:58:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for(int i = 1; i <= H; i++) scanf(" %s", A[i]+1);
~~~~~^~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
760 KB |
Output is correct |
| 2 |
Correct |
3 ms |
760 KB |
Output is correct |
| 3 |
Correct |
5 ms |
1068 KB |
Output is correct |
| 4 |
Correct |
2 ms |
1068 KB |
Output is correct |
| 5 |
Correct |
5 ms |
1144 KB |
Output is correct |
| 6 |
Correct |
15 ms |
1144 KB |
Output is correct |
| 7 |
Correct |
7 ms |
1144 KB |
Output is correct |
| 8 |
Correct |
10 ms |
1200 KB |
Output is correct |
| 9 |
Correct |
10 ms |
1200 KB |
Output is correct |
| 10 |
Correct |
11 ms |
1200 KB |
Output is correct |
| 11 |
Correct |
10 ms |
1208 KB |
Output is correct |
| 12 |
Correct |
6 ms |
1208 KB |
Output is correct |
| 13 |
Correct |
10 ms |
1208 KB |
Output is correct |
| 14 |
Correct |
9 ms |
1208 KB |
Output is correct |
| 15 |
Correct |
10 ms |
1208 KB |
Output is correct |
| 16 |
Correct |
8 ms |
1208 KB |
Output is correct |
| 17 |
Correct |
9 ms |
1208 KB |
Output is correct |
| 18 |
Correct |
9 ms |
1208 KB |
Output is correct |
| 19 |
Correct |
7 ms |
1372 KB |
Output is correct |
| 20 |
Correct |
8 ms |
1372 KB |
Output is correct |
| 21 |
Correct |
10 ms |
1372 KB |
Output is correct |
| 22 |
Correct |
7 ms |
1372 KB |
Output is correct |
| 23 |
Correct |
7 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
9 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
9 ms |
1372 KB |
Output is correct |
| 26 |
Correct |
10 ms |
1372 KB |
Output is correct |
| 27 |
Correct |
9 ms |
1468 KB |
Output is correct |
| 28 |
Correct |
9 ms |
1468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
760 KB |
Output is correct |
| 2 |
Correct |
3 ms |
760 KB |
Output is correct |
| 3 |
Correct |
5 ms |
1068 KB |
Output is correct |
| 4 |
Correct |
2 ms |
1068 KB |
Output is correct |
| 5 |
Correct |
5 ms |
1144 KB |
Output is correct |
| 6 |
Correct |
15 ms |
1144 KB |
Output is correct |
| 7 |
Correct |
7 ms |
1144 KB |
Output is correct |
| 8 |
Correct |
10 ms |
1200 KB |
Output is correct |
| 9 |
Correct |
10 ms |
1200 KB |
Output is correct |
| 10 |
Correct |
11 ms |
1200 KB |
Output is correct |
| 11 |
Correct |
10 ms |
1208 KB |
Output is correct |
| 12 |
Correct |
6 ms |
1208 KB |
Output is correct |
| 13 |
Correct |
10 ms |
1208 KB |
Output is correct |
| 14 |
Correct |
9 ms |
1208 KB |
Output is correct |
| 15 |
Correct |
10 ms |
1208 KB |
Output is correct |
| 16 |
Correct |
8 ms |
1208 KB |
Output is correct |
| 17 |
Correct |
9 ms |
1208 KB |
Output is correct |
| 18 |
Correct |
9 ms |
1208 KB |
Output is correct |
| 19 |
Correct |
7 ms |
1372 KB |
Output is correct |
| 20 |
Correct |
8 ms |
1372 KB |
Output is correct |
| 21 |
Correct |
10 ms |
1372 KB |
Output is correct |
| 22 |
Correct |
7 ms |
1372 KB |
Output is correct |
| 23 |
Correct |
7 ms |
1372 KB |
Output is correct |
| 24 |
Correct |
9 ms |
1372 KB |
Output is correct |
| 25 |
Correct |
9 ms |
1372 KB |
Output is correct |
| 26 |
Correct |
10 ms |
1372 KB |
Output is correct |
| 27 |
Correct |
9 ms |
1468 KB |
Output is correct |
| 28 |
Correct |
9 ms |
1468 KB |
Output is correct |
| 29 |
Correct |
2 ms |
1468 KB |
Output is correct |
| 30 |
Correct |
28 ms |
2528 KB |
Output is correct |
| 31 |
Correct |
4126 ms |
9788 KB |
Output is correct |
| 32 |
Correct |
3979 ms |
9940 KB |
Output is correct |
| 33 |
Correct |
912 ms |
9940 KB |
Output is correct |
| 34 |
Correct |
1314 ms |
9940 KB |
Output is correct |
| 35 |
Correct |
1004 ms |
9940 KB |
Output is correct |
| 36 |
Correct |
54 ms |
9940 KB |
Output is correct |
| 37 |
Correct |
1387 ms |
9940 KB |
Output is correct |
| 38 |
Correct |
1665 ms |
9940 KB |
Output is correct |
| 39 |
Correct |
1490 ms |
9940 KB |
Output is correct |
| 40 |
Correct |
2017 ms |
9940 KB |
Output is correct |
| 41 |
Correct |
758 ms |
9940 KB |
Output is correct |
| 42 |
Correct |
1693 ms |
9940 KB |
Output is correct |
| 43 |
Correct |
1712 ms |
9940 KB |
Output is correct |
| 44 |
Correct |
1770 ms |
9940 KB |
Output is correct |
| 45 |
Correct |
1404 ms |
9940 KB |
Output is correct |
| 46 |
Correct |
836 ms |
9940 KB |
Output is correct |
| 47 |
Correct |
1120 ms |
9940 KB |
Output is correct |
| 48 |
Correct |
707 ms |
9940 KB |
Output is correct |
| 49 |
Correct |
987 ms |
9940 KB |
Output is correct |
| 50 |
Correct |
1059 ms |
9940 KB |
Output is correct |
| 51 |
Correct |
943 ms |
9940 KB |
Output is correct |
| 52 |
Correct |
1084 ms |
9940 KB |
Output is correct |
| 53 |
Correct |
1041 ms |
9940 KB |
Output is correct |
| 54 |
Correct |
1058 ms |
9940 KB |
Output is correct |
| 55 |
Correct |
1143 ms |
9940 KB |
Output is correct |
| 56 |
Correct |
993 ms |
9940 KB |
Output is correct |
| 57 |
Correct |
814 ms |
9940 KB |
Output is correct |
| 58 |
Correct |
2064 ms |
9940 KB |
Output is correct |
| 59 |
Correct |
2111 ms |
9940 KB |
Output is correct |
| 60 |
Correct |
1373 ms |
9940 KB |
Output is correct |
| 61 |
Correct |
2303 ms |
10736 KB |
Output is correct |
| 62 |
Correct |
1810 ms |
16856 KB |
Output is correct |
| 63 |
Correct |
1891 ms |
16856 KB |
Output is correct |
