#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define F first
#define S second
typedef pair<int, int> pi;
typedef long long int lint;
const int inf = 0x3f3f3f3f;
const int maxn = 1e5 + 10;
int n;
char c[13][maxn];
vector<int> v;
bool memo[13][maxn];
bool jetpack(int x, int y) {
if(c[x][y] == 'X' or memo[x][y])
return 0;
if(y == n - 1)
return 1;
memo[x][y] = 1;
if(jetpack(min(9, x + 1), y + 1))
return 1;
if(jetpack(max(0, x - 1), y + 1)) {
v.pb(y);
return 1;
}
return 0;
}
int main ()
{
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cin >> n;
for(int i = 0; i < 10; ++i)
for(int j = 0; j < n; ++j)
cin >> c[i][j];
assert(jetpack(9, 0) == 1);
cout << v.size() << endl;
for(int i = v.size() - 1; i >= 0; --i)
cout << v[i] << " " << 1 << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
3 ms |
640 KB |
Output is correct |
6 |
Correct |
5 ms |
768 KB |
Output is correct |
7 |
Correct |
14 ms |
1536 KB |
Output is correct |
8 |
Correct |
29 ms |
3072 KB |
Output is correct |
9 |
Correct |
48 ms |
4604 KB |
Output is correct |
10 |
Correct |
77 ms |
6160 KB |
Output is correct |