| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 611819 |
2022-07-29T07:54:21 Z |
Belgutei |
Mecho (IOI09_mecho) |
C++17 |
|
1000 ms |
13940 KB |
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define mk make_pair
#define IOS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int n,m;
int b[805][806];
queue<pair<int,int> > q;
int stx, sty;
int cnt[805][805];
int tmp[805][805];
bool check = 0;
char ch[805][805];
int main() {
IOS
cin >> n >> m;
for(int i = 1; i <= n; i ++) {
for(int j = 1; j <= n; j ++) {
cin >> ch[i][j];
if(ch[i][j] == 'H') {
b[i][j] = 1;
q.push({i,j});
}
if(ch[i][j] == 'M') {
stx = i;
sty = j;
}
}
}
while(q.size() > 0) {
int x = q.front().ff;
int y = q.front().ss;
q.pop();
if(x > 1 && b[x - 1][y] == 0 && ch[x - 1][y] != 'T' && ch[x - 1][y] != 'D') {
q.push({x - 1, y});
b[x - 1][y] = b[x][y] + 1;
}
if(x < n && b[x + 1][y] == 0 && ch[x + 1][y] != 'T' && ch[x + 1][y] != 'D') {
q.push({x + 1, y});
b[x + 1][y] = b[x][y] + 1;
}
if(y > 1 && b[x][y - 1] == 0 && ch[x][y - 1] != 'T' && ch[x][y - 1] != 'D') {
q.push({x, y - 1});
b[x][y - 1] = b[x][y] + 1;
}
if(y < n && b[x][y + 1] == 0 && ch[x][y + 1] != 'T' && ch[x][y + 1] != 'D') {
q.push({x, y + 1});
b[x][y + 1] = b[x][y] + 1;
}
}
for(int i = 1; i <= n; i ++) {
for(int j = 1; j <= n; j ++) {
if(b[i][j] == 0) b[i][j] = 1e9;
else b[i][j] --;
}
}
int l = 0;
int r = n * n;
while(l < r) {
int mid = (l + r + 1) / 2;
memset(cnt, -1, sizeof(cnt));
while(q.size() > 0) q.pop();
//
q.push({stx, sty});
if(mid >= b[stx][sty]) {
r = mid - 1;
continue;
}
cnt[stx][sty] = mid;
bool ok = 0;
//
while(q.size() > 0) {
int x = q.front().ff;
int y = q.front().ss;
q.pop();
if(ch[x][y] == 'D') {
ok = 1;
break;
}
for(int i = 1; i <= m; i ++) {
for(int j = 0; j <= i; j ++) {
int xx = x - j;
int yy = y - (i - j);
if(cnt[xx][yy] == -1 && cnt[x][y] + 1 < b[xx][yy] && ch[xx][yy] != 'T') {
q.push({xx,yy});
cnt[xx][yy] = cnt[x][y] + 1;
}
}
for(int j = 0; j <= i; j ++) {
int xx = x - (i - j);
int yy = y + j;
if(cnt[xx][yy] == -1 && cnt[x][y] + 1 < b[xx][yy] && ch[xx][yy] != 'T') {
q.push({xx,yy});
cnt[xx][yy] = cnt[x][y] + 1;
}
}
for(int j = 0; j <= i; j ++) {
int xx = x + j;
int yy = y + (i - j);
if(cnt[xx][yy] == -1 && cnt[x][y] + 1 < b[xx][yy] && ch[xx][yy] != 'T') {
q.push({xx,yy});
cnt[xx][yy] = cnt[x][y] + 1;
}
}
for(int j = 0; j <= i; j ++) {
int xx = x + (i - j);
int yy = x - j;
if(cnt[xx][yy] == -1 && cnt[x][y] + 1 < b[xx][yy] && ch[xx][yy] != 'T') {
q.push({xx,yy});
cnt[xx][yy] = cnt[x][y] + 1;
}
}
}
}
if(ok == 1) {
check = 1;
l = mid;
}
else r = mid - 1;
}
if(check == 1){
cout << l;
}
else cout << -1;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2900 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2900 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2900 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2900 KB |
Output is correct |
| 5 |
Incorrect |
2 ms |
2900 KB |
Output isn't correct |
| 6 |
Incorrect |
3 ms |
2900 KB |
Output isn't correct |
| 7 |
Execution timed out |
1082 ms |
6688 KB |
Time limit exceeded |
| 8 |
Incorrect |
2 ms |
2900 KB |
Output isn't correct |
| 9 |
Correct |
2 ms |
2896 KB |
Output is correct |
| 10 |
Incorrect |
2 ms |
2900 KB |
Output isn't correct |
| 11 |
Incorrect |
3 ms |
2900 KB |
Output isn't correct |
| 12 |
Correct |
3 ms |
3028 KB |
Output is correct |
| 13 |
Incorrect |
2 ms |
3028 KB |
Output isn't correct |
| 14 |
Incorrect |
4 ms |
3028 KB |
Output isn't correct |
| 15 |
Correct |
2 ms |
2900 KB |
Output is correct |
| 16 |
Incorrect |
3 ms |
2900 KB |
Output isn't correct |
| 17 |
Correct |
2 ms |
2900 KB |
Output is correct |
| 18 |
Incorrect |
4 ms |
2920 KB |
Output isn't correct |
| 19 |
Correct |
3 ms |
2900 KB |
Output is correct |
| 20 |
Incorrect |
3 ms |
2900 KB |
Output isn't correct |
| 21 |
Correct |
2 ms |
3028 KB |
Output is correct |
| 22 |
Incorrect |
4 ms |
3028 KB |
Output isn't correct |
| 23 |
Correct |
2 ms |
3028 KB |
Output is correct |
| 24 |
Incorrect |
7 ms |
3092 KB |
Output isn't correct |
| 25 |
Correct |
3 ms |
3028 KB |
Output is correct |
| 26 |
Incorrect |
12 ms |
3028 KB |
Output isn't correct |
| 27 |
Correct |
4 ms |
3028 KB |
Output is correct |
| 28 |
Incorrect |
16 ms |
3028 KB |
Output isn't correct |
| 29 |
Correct |
3 ms |
3156 KB |
Output is correct |
| 30 |
Incorrect |
15 ms |
3160 KB |
Output isn't correct |
| 31 |
Correct |
3 ms |
3164 KB |
Output is correct |
| 32 |
Incorrect |
21 ms |
3196 KB |
Output isn't correct |
| 33 |
Correct |
7 ms |
4324 KB |
Output is correct |
| 34 |
Execution timed out |
1074 ms |
4584 KB |
Time limit exceeded |
| 35 |
Execution timed out |
1079 ms |
4880 KB |
Time limit exceeded |
| 36 |
Correct |
7 ms |
4564 KB |
Output is correct |
| 37 |
Execution timed out |
1073 ms |
4868 KB |
Time limit exceeded |
| 38 |
Execution timed out |
1081 ms |
5188 KB |
Time limit exceeded |
| 39 |
Correct |
8 ms |
4820 KB |
Output is correct |
| 40 |
Execution timed out |
1085 ms |
5288 KB |
Time limit exceeded |
| 41 |
Execution timed out |
1077 ms |
5520 KB |
Time limit exceeded |
| 42 |
Correct |
10 ms |
5068 KB |
Output is correct |
| 43 |
Execution timed out |
1086 ms |
5576 KB |
Time limit exceeded |
| 44 |
Execution timed out |
1089 ms |
5804 KB |
Time limit exceeded |
| 45 |
Correct |
10 ms |
5332 KB |
Output is correct |
| 46 |
Execution timed out |
1073 ms |
6060 KB |
Time limit exceeded |
| 47 |
Execution timed out |
1079 ms |
6224 KB |
Time limit exceeded |
| 48 |
Correct |
11 ms |
5588 KB |
Output is correct |
| 49 |
Execution timed out |
1077 ms |
6240 KB |
Time limit exceeded |
| 50 |
Execution timed out |
1067 ms |
6776 KB |
Time limit exceeded |
| 51 |
Correct |
16 ms |
5836 KB |
Output is correct |
| 52 |
Execution timed out |
1072 ms |
6476 KB |
Time limit exceeded |
| 53 |
Execution timed out |
1064 ms |
7352 KB |
Time limit exceeded |
| 54 |
Correct |
15 ms |
6100 KB |
Output is correct |
| 55 |
Execution timed out |
1092 ms |
6904 KB |
Time limit exceeded |
| 56 |
Execution timed out |
1078 ms |
7656 KB |
Time limit exceeded |
| 57 |
Correct |
18 ms |
6332 KB |
Output is correct |
| 58 |
Execution timed out |
1093 ms |
7084 KB |
Time limit exceeded |
| 59 |
Execution timed out |
1067 ms |
8180 KB |
Time limit exceeded |
| 60 |
Correct |
18 ms |
6500 KB |
Output is correct |
| 61 |
Execution timed out |
1085 ms |
7492 KB |
Time limit exceeded |
| 62 |
Execution timed out |
1081 ms |
8864 KB |
Time limit exceeded |
| 63 |
Incorrect |
25 ms |
6488 KB |
Output isn't correct |
| 64 |
Runtime error |
36 ms |
13940 KB |
Execution killed with signal 11 |
| 65 |
Incorrect |
28 ms |
6516 KB |
Output isn't correct |
| 66 |
Incorrect |
30 ms |
6476 KB |
Output isn't correct |
| 67 |
Incorrect |
38 ms |
6552 KB |
Output isn't correct |
| 68 |
Execution timed out |
1087 ms |
6688 KB |
Time limit exceeded |
| 69 |
Execution timed out |
1079 ms |
6920 KB |
Time limit exceeded |
| 70 |
Incorrect |
632 ms |
6560 KB |
Output isn't correct |
| 71 |
Incorrect |
329 ms |
6552 KB |
Output isn't correct |
| 72 |
Execution timed out |
1075 ms |
6688 KB |
Time limit exceeded |
| 73 |
Correct |
134 ms |
6928 KB |
Output is correct |
| 74 |
Execution timed out |
1085 ms |
6936 KB |
Time limit exceeded |
| 75 |
Incorrect |
668 ms |
6804 KB |
Output isn't correct |
| 76 |
Incorrect |
379 ms |
6804 KB |
Output isn't correct |
| 77 |
Execution timed out |
1082 ms |
6796 KB |
Time limit exceeded |
| 78 |
Execution timed out |
1084 ms |
6776 KB |
Time limit exceeded |
| 79 |
Execution timed out |
1077 ms |
6744 KB |
Time limit exceeded |
| 80 |
Incorrect |
76 ms |
6780 KB |
Output isn't correct |
| 81 |
Incorrect |
41 ms |
6732 KB |
Output isn't correct |
| 82 |
Incorrect |
615 ms |
6772 KB |
Output isn't correct |
| 83 |
Incorrect |
75 ms |
6708 KB |
Output isn't correct |
| 84 |
Execution timed out |
1083 ms |
6772 KB |
Time limit exceeded |
| 85 |
Incorrect |
387 ms |
6744 KB |
Output isn't correct |
| 86 |
Incorrect |
55 ms |
6624 KB |
Output isn't correct |
| 87 |
Incorrect |
331 ms |
6740 KB |
Output isn't correct |
| 88 |
Incorrect |
119 ms |
6888 KB |
Output isn't correct |
| 89 |
Execution timed out |
1069 ms |
7988 KB |
Time limit exceeded |
| 90 |
Incorrect |
600 ms |
6684 KB |
Output isn't correct |
| 91 |
Execution timed out |
1089 ms |
6604 KB |
Time limit exceeded |
| 92 |
Incorrect |
274 ms |
6692 KB |
Output isn't correct |
