| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 501344 |
2022-01-02T20:41:47 Z |
sidon |
Mecho (IOI09_mecho) |
C++17 |
|
176 ms |
6084 KB |
#include <bits/stdc++.h>
using namespace std;
const int Z = 1<<20;
const int dx[4][2] = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}};
int N, S, h[Z], m[Z], ans = -1, e, r;
string g, _;
void BFS(char src, int *d) {
fill(d, d + N * N, Z);
queue<int> q;
for(int i = N * N; --i >= 0; ) {
if(g[i] == src && ans < h[i])
d[i] = 0, q.push(i);
if(g[i] == 'D') e = i, g[i] = 30;
}
while(!empty(q)) {
int k = q.front(), i = k / N, j = k % N; q.pop();
for(auto &[s, t] : dx) {
int x = i + s, y = j + t, z = x * N + y;
if(min(x, y) < 0 || max(x, y) >= N || d[z] != Z) continue;
if((g[z] & 1 || g[z] == r) && (!r || (d[k] + 1) / S + ans < h[z]))
d[z] = d[k] + 1, q.push(z);
}
}
}
#define gc getchar_unlocked()
void ri(int &I){
char J = I = 0;
for(; J < 48; J=gc);
for(; J > 47; J=gc) I = I * 10 + J - 48;
}
signed main(){
ri(N), ri(S);
for(int i = 0; i < N; i++, gc)
for(int j = 0; j < N; j++)
g += gc;
BFS('H', h);
for(int b = r = 30; --b >= 0; ) {
ans += 1 << b;
BFS('M', m);
if(m[e] == Z) ans -= 1 << b;
}
cout << ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Correct |
0 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Correct |
0 ms |
204 KB |
Output is correct |
| 6 |
Correct |
1 ms |
204 KB |
Output is correct |
| 7 |
Correct |
84 ms |
6008 KB |
Output is correct |
| 8 |
Correct |
0 ms |
204 KB |
Output is correct |
| 9 |
Correct |
0 ms |
204 KB |
Output is correct |
| 10 |
Correct |
1 ms |
204 KB |
Output is correct |
| 11 |
Correct |
0 ms |
204 KB |
Output is correct |
| 12 |
Correct |
1 ms |
332 KB |
Output is correct |
| 13 |
Correct |
1 ms |
332 KB |
Output is correct |
| 14 |
Correct |
1 ms |
332 KB |
Output is correct |
| 15 |
Correct |
0 ms |
204 KB |
Output is correct |
| 16 |
Correct |
0 ms |
204 KB |
Output is correct |
| 17 |
Correct |
0 ms |
260 KB |
Output is correct |
| 18 |
Correct |
0 ms |
204 KB |
Output is correct |
| 19 |
Correct |
0 ms |
204 KB |
Output is correct |
| 20 |
Correct |
1 ms |
204 KB |
Output is correct |
| 21 |
Correct |
0 ms |
204 KB |
Output is correct |
| 22 |
Correct |
0 ms |
204 KB |
Output is correct |
| 23 |
Correct |
1 ms |
332 KB |
Output is correct |
| 24 |
Correct |
1 ms |
332 KB |
Output is correct |
| 25 |
Correct |
1 ms |
332 KB |
Output is correct |
| 26 |
Correct |
1 ms |
332 KB |
Output is correct |
| 27 |
Correct |
1 ms |
332 KB |
Output is correct |
| 28 |
Correct |
1 ms |
332 KB |
Output is correct |
| 29 |
Correct |
1 ms |
332 KB |
Output is correct |
| 30 |
Correct |
1 ms |
332 KB |
Output is correct |
| 31 |
Correct |
1 ms |
332 KB |
Output is correct |
| 32 |
Correct |
1 ms |
332 KB |
Output is correct |
| 33 |
Correct |
8 ms |
1484 KB |
Output is correct |
| 34 |
Correct |
7 ms |
1484 KB |
Output is correct |
| 35 |
Correct |
20 ms |
1484 KB |
Output is correct |
| 36 |
Correct |
9 ms |
1756 KB |
Output is correct |
| 37 |
Correct |
9 ms |
1756 KB |
Output is correct |
| 38 |
Correct |
26 ms |
1756 KB |
Output is correct |
| 39 |
Correct |
13 ms |
2140 KB |
Output is correct |
| 40 |
Correct |
12 ms |
2140 KB |
Output is correct |
| 41 |
Correct |
33 ms |
2200 KB |
Output is correct |
| 42 |
Correct |
14 ms |
2568 KB |
Output is correct |
| 43 |
Correct |
15 ms |
2536 KB |
Output is correct |
| 44 |
Correct |
41 ms |
2572 KB |
Output is correct |
| 45 |
Correct |
16 ms |
3048 KB |
Output is correct |
| 46 |
Correct |
16 ms |
3048 KB |
Output is correct |
| 47 |
Correct |
53 ms |
3048 KB |
Output is correct |
| 48 |
Correct |
20 ms |
3600 KB |
Output is correct |
| 49 |
Correct |
20 ms |
3560 KB |
Output is correct |
| 50 |
Correct |
61 ms |
3560 KB |
Output is correct |
| 51 |
Correct |
22 ms |
4052 KB |
Output is correct |
| 52 |
Correct |
24 ms |
4116 KB |
Output is correct |
| 53 |
Correct |
76 ms |
4072 KB |
Output is correct |
| 54 |
Correct |
26 ms |
4632 KB |
Output is correct |
| 55 |
Correct |
29 ms |
4632 KB |
Output is correct |
| 56 |
Correct |
105 ms |
4628 KB |
Output is correct |
| 57 |
Correct |
29 ms |
5380 KB |
Output is correct |
| 58 |
Correct |
30 ms |
5380 KB |
Output is correct |
| 59 |
Correct |
98 ms |
5336 KB |
Output is correct |
| 60 |
Correct |
37 ms |
6008 KB |
Output is correct |
| 61 |
Correct |
36 ms |
6008 KB |
Output is correct |
| 62 |
Correct |
113 ms |
6012 KB |
Output is correct |
| 63 |
Correct |
110 ms |
6004 KB |
Output is correct |
| 64 |
Correct |
176 ms |
6044 KB |
Output is correct |
| 65 |
Correct |
157 ms |
6012 KB |
Output is correct |
| 66 |
Correct |
130 ms |
6020 KB |
Output is correct |
| 67 |
Correct |
116 ms |
6000 KB |
Output is correct |
| 68 |
Correct |
67 ms |
6000 KB |
Output is correct |
| 69 |
Correct |
64 ms |
6012 KB |
Output is correct |
| 70 |
Correct |
57 ms |
6012 KB |
Output is correct |
| 71 |
Correct |
46 ms |
5992 KB |
Output is correct |
| 72 |
Correct |
44 ms |
6004 KB |
Output is correct |
| 73 |
Correct |
46 ms |
5968 KB |
Output is correct |
| 74 |
Correct |
63 ms |
6020 KB |
Output is correct |
| 75 |
Correct |
70 ms |
6016 KB |
Output is correct |
| 76 |
Correct |
75 ms |
6012 KB |
Output is correct |
| 77 |
Correct |
67 ms |
6084 KB |
Output is correct |
| 78 |
Correct |
78 ms |
6020 KB |
Output is correct |
| 79 |
Correct |
60 ms |
6020 KB |
Output is correct |
| 80 |
Correct |
72 ms |
5980 KB |
Output is correct |
| 81 |
Correct |
72 ms |
6004 KB |
Output is correct |
| 82 |
Correct |
68 ms |
6020 KB |
Output is correct |
| 83 |
Correct |
80 ms |
6008 KB |
Output is correct |
| 84 |
Correct |
72 ms |
6012 KB |
Output is correct |
| 85 |
Correct |
71 ms |
6012 KB |
Output is correct |
| 86 |
Correct |
79 ms |
6020 KB |
Output is correct |
| 87 |
Correct |
82 ms |
6000 KB |
Output is correct |
| 88 |
Correct |
84 ms |
6016 KB |
Output is correct |
| 89 |
Correct |
77 ms |
6052 KB |
Output is correct |
| 90 |
Correct |
86 ms |
6012 KB |
Output is correct |
| 91 |
Correct |
78 ms |
6020 KB |
Output is correct |
| 92 |
Correct |
79 ms |
6004 KB |
Output is correct |
