#include <bits/stdc++.h>
using namespace std;
#define sp << " " <<
#define int long long
#define vi vector<int>
#define F(xxx,yyy) for (int xxx=1;xxx<=yyy;xxx++)
#define pii pair<int,int>
const int N = 1e5+1;
void solve() {
int n,m;
cin >> n >> m;
char grid[n+1][m+1];
F(i,n){
string s;
cin >> s;
F(j,m) grid[i][j] = s[j-1];
}
queue<pair<pii,int>> q;
string s;
cin >> s;
F(i,n+m-1) s+='z';
q.push({{1,1},0});
while (!q.empty()) {
auto f= q.front();
q.pop();
int c = f.second;
int x = f.first.first;
int y = f.first.second;
if (s[c] < grid[x][y]) continue;
s[c] = grid[x][y];
if (x<n && y<m) {
if (grid[x+1][y] <= grid[x][y+1]) {
q.push({{x+1,y},c+1});
}
if (grid[x][y+1] <= grid[x+1][y]) {
q.push({{x,y+1},c+1});
}
}
else {
if (x < n) q.push({{x+1,y},c+1});
else if (y<m) q.push({{x,y+1},c+1});
}
}
cout << s << endl;
}
signed main() {
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#ifdef Local
freopen("in","r",stdin);
freopen("out","w",stdout);
#endif
int t = 1;
//cin >> t;
F(i,t) solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
2 ms |
1628 KB |
Output is correct |
8 |
Correct |
5 ms |
4188 KB |
Output is correct |
9 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
10 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
11 |
Incorrect |
1 ms |
604 KB |
Output isn't correct |
12 |
Incorrect |
1 ms |
600 KB |
Output isn't correct |
13 |
Incorrect |
1 ms |
604 KB |
Output isn't correct |
14 |
Incorrect |
5 ms |
4416 KB |
Output isn't correct |
15 |
Runtime error |
85 ms |
65536 KB |
Execution killed with signal 9 |
16 |
Runtime error |
82 ms |
65536 KB |
Execution killed with signal 9 |