| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 607297 |
2022-07-26T14:37:31 Z |
beaboss |
Mecho (IOI09_mecho) |
C++14 |
|
86 ms |
21172 KB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
ll n, s;
cin >> n>> s;
vector<vector<char> > grid(n, vector<char>(n));
queue<pair<ll ,ll> > q1;
queue<pair<ll ,ll> > q2;
pair<ll ,ll> home;
pair<ll ,ll> start;
vector<vector<ll> > hdist(n, vector<ll>(n, -1));
vector<vector<ll> > mdist(n, vector<ll>(n, -1));
for (ll i = 0; i < n; i++) for (ll j = 0; j < n; j++) {
cin >> grid[i][j];
if (grid[i][j] == 'H') {
q1.push({i, j});
hdist[i][j] = 0;
}
else if (grid[i][j] == 'M') {
q2.push({i, j});
mdist[i][j] = 0;
start = {i, j};
}
else if (grid[i][j] == 'D') home = {i, j};
}
vector<ll> dx = {1, -1, 0, 0};
vector<ll> dy = {0, 0, -1, 1};
while (!q1.empty() && hdist[home.first][home.second] == -1) {
pair<ll, ll> curr = q1.front();
q1.pop();
for (ll i = 0; i < 4; i++) {
ll x = curr.first + dx[i];
ll y = curr.second + dy[i];
if (x >= 0 && x < n && y >= 0 && y < n) {
if (hdist[x][y] == -1 && grid[x][y] == 'G') {
hdist[x][y] = hdist[curr.first][curr.second] + s;
q1.push({x, y});
}
}
}
}
vector<vector<pair<ll, ll> > > parent(n, vector<pair<ll, ll> >(n, {-1, -1}));
while (!q2.empty() && mdist[home.first][home.second] == -1) {
pair<ll, ll> curr = q2.front();
q2.pop();
for (ll i = 0; i < 4; i++) {
ll x = curr.first + dx[i];
ll y = curr.second + dy[i];
if (x >= 0 && x < n && y >= 0 && y < n) {
if (mdist[x][y] == -1 && (grid[x][y] == 'G' || grid[x][y] == 'D') && (hdist[x][y] > mdist[curr.first][curr.second] + 1 || hdist[x][y ] == -1)) {
mdist[x][y] = mdist[curr.first][curr.second] + 1;
q2.push({x, y});
parent[x][y] = {curr.first, curr.second};
}
}
}
}
ll ans = 100000000;
pair<ll ,ll> current = home;
// cout << mdist[home.first][home.second] << endl;
if (mdist[home.first][home.second] == -1) {
cout << -1 << endl;
return 0;
}
while (current != start) {
ll x = current.first;
ll y = current.second;
if (hdist[x][y] != -1) {
// cout << x << y << hdist[x][y] << endl;
ans = min(ans, hdist[x][y]-mdist[x][y]);
}
current = parent[x][y];
}
// for (ll i = 0; i < 4; i++) {
// ll x = home.first + dx[i];
// ll y = home.second + dy[i];
// if (x >= 0 && x < n && y >= 0 && y < n && grid[x][y] != 'T') {
// ans = max(hdist[x][y] - mdist[x][y], ans);
// cout << mdist[x][y] << hdist[x][y] << x << y << endl;
// }
// }
cout << ans/s << endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Incorrect |
75 ms |
21140 KB |
Output isn't correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 22 |
Correct |
0 ms |
340 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 24 |
Correct |
1 ms |
340 KB |
Output is correct |
| 25 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 26 |
Correct |
1 ms |
340 KB |
Output is correct |
| 27 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 28 |
Correct |
1 ms |
340 KB |
Output is correct |
| 29 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 30 |
Correct |
1 ms |
468 KB |
Output is correct |
| 31 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 32 |
Correct |
1 ms |
468 KB |
Output is correct |
| 33 |
Incorrect |
10 ms |
4296 KB |
Output isn't correct |
| 34 |
Correct |
11 ms |
4300 KB |
Output is correct |
| 35 |
Incorrect |
13 ms |
4296 KB |
Output isn't correct |
| 36 |
Incorrect |
13 ms |
5440 KB |
Output isn't correct |
| 37 |
Correct |
12 ms |
5532 KB |
Output is correct |
| 38 |
Incorrect |
16 ms |
5444 KB |
Output isn't correct |
| 39 |
Incorrect |
16 ms |
6868 KB |
Output isn't correct |
| 40 |
Correct |
16 ms |
6788 KB |
Output is correct |
| 41 |
Incorrect |
19 ms |
6868 KB |
Output isn't correct |
| 42 |
Incorrect |
19 ms |
8360 KB |
Output isn't correct |
| 43 |
Correct |
19 ms |
8356 KB |
Output is correct |
| 44 |
Incorrect |
24 ms |
8456 KB |
Output isn't correct |
| 45 |
Incorrect |
24 ms |
10132 KB |
Output isn't correct |
| 46 |
Correct |
23 ms |
10128 KB |
Output is correct |
| 47 |
Incorrect |
28 ms |
10144 KB |
Output isn't correct |
| 48 |
Incorrect |
27 ms |
11988 KB |
Output isn't correct |
| 49 |
Correct |
27 ms |
11972 KB |
Output is correct |
| 50 |
Incorrect |
35 ms |
11988 KB |
Output isn't correct |
| 51 |
Incorrect |
32 ms |
13928 KB |
Output isn't correct |
| 52 |
Correct |
32 ms |
13984 KB |
Output is correct |
| 53 |
Incorrect |
43 ms |
13940 KB |
Output isn't correct |
| 54 |
Incorrect |
41 ms |
16216 KB |
Output isn't correct |
| 55 |
Correct |
38 ms |
16200 KB |
Output is correct |
| 56 |
Incorrect |
56 ms |
16228 KB |
Output isn't correct |
| 57 |
Incorrect |
42 ms |
18508 KB |
Output isn't correct |
| 58 |
Correct |
42 ms |
18580 KB |
Output is correct |
| 59 |
Incorrect |
56 ms |
18580 KB |
Output isn't correct |
| 60 |
Incorrect |
50 ms |
21024 KB |
Output isn't correct |
| 61 |
Correct |
48 ms |
21020 KB |
Output is correct |
| 62 |
Incorrect |
65 ms |
21020 KB |
Output isn't correct |
| 63 |
Correct |
77 ms |
21008 KB |
Output is correct |
| 64 |
Correct |
82 ms |
21020 KB |
Output is correct |
| 65 |
Correct |
78 ms |
21088 KB |
Output is correct |
| 66 |
Incorrect |
77 ms |
21008 KB |
Output isn't correct |
| 67 |
Correct |
71 ms |
21024 KB |
Output is correct |
| 68 |
Correct |
66 ms |
21064 KB |
Output is correct |
| 69 |
Correct |
70 ms |
21016 KB |
Output is correct |
| 70 |
Correct |
66 ms |
21060 KB |
Output is correct |
| 71 |
Correct |
75 ms |
21068 KB |
Output is correct |
| 72 |
Incorrect |
63 ms |
21068 KB |
Output isn't correct |
| 73 |
Incorrect |
68 ms |
21048 KB |
Output isn't correct |
| 74 |
Correct |
86 ms |
21160 KB |
Output is correct |
| 75 |
Correct |
67 ms |
21172 KB |
Output is correct |
| 76 |
Correct |
64 ms |
21148 KB |
Output is correct |
| 77 |
Correct |
67 ms |
21048 KB |
Output is correct |
| 78 |
Correct |
66 ms |
21036 KB |
Output is correct |
| 79 |
Incorrect |
79 ms |
21144 KB |
Output isn't correct |
| 80 |
Incorrect |
67 ms |
21160 KB |
Output isn't correct |
| 81 |
Incorrect |
66 ms |
21156 KB |
Output isn't correct |
| 82 |
Incorrect |
69 ms |
21152 KB |
Output isn't correct |
| 83 |
Correct |
75 ms |
21148 KB |
Output is correct |
| 84 |
Incorrect |
84 ms |
21044 KB |
Output isn't correct |
| 85 |
Incorrect |
73 ms |
21144 KB |
Output isn't correct |
| 86 |
Incorrect |
68 ms |
21068 KB |
Output isn't correct |
| 87 |
Incorrect |
71 ms |
21148 KB |
Output isn't correct |
| 88 |
Correct |
68 ms |
21152 KB |
Output is correct |
| 89 |
Incorrect |
82 ms |
21040 KB |
Output isn't correct |
| 90 |
Incorrect |
86 ms |
21156 KB |
Output isn't correct |
| 91 |
Incorrect |
80 ms |
21148 KB |
Output isn't correct |
| 92 |
Incorrect |
69 ms |
21140 KB |
Output isn't correct |
