#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
const int N = 2020;
const long long INF = (1LL<<62);
const int DIRS[][2] = {{-1, 0}, {0, -1}, {0, 1}, {1, 0}};
int p(int x, int y) { return (x<<13)|y; }
int x(int p) { return (p>>13); }
int y(int p) { return (p&((1<<13)-1)); }
int n, m, k;
string s[N];
bool vis[N][N];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m >> k;
for (int i=0; i<n; i++) cin >> s[i];
vector<int> q = {p(0, 0)};
vis[0][0] = true;
int dist = 0;
while (!vis[n-1][m-1]) {
vector<int> nq;
for (int v: q) {
for (auto dir: DIRS) {
int nx = x(v)+dir[0], ny = y(v)+dir[1];
if (0 <= nx && nx < n && 0 <= ny && ny < m && s[nx][ny] == '.' && !vis[nx][ny]) {
vis[nx][ny] = true;
nq.push_back(p(nx, ny));
}
}
}
dist++;
nq.swap(q);
}
long long a, b, necessary = (n+m-2), unnecessary = dist - (n+m-2);
vector<long long> times;
for (int i=0; i<k; i++) {
cin >> a >> b;
times.push_back(a * necessary + (a+b) * (unnecessary / 2));
}
long long best_time = *min_element(times.begin(), times.end());
int cnt = count(times.begin(), times.end(), best_time);
cout << best_time << " " << cnt << "\n";
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | #include <iostream> #include <vector> #include <algorithm> using namespace std; const int N = 2020; const long long INF = (1LL<<62); const int DIRS[][2] = {{-1, 0}, {0, -1}, {0, 1}, {1, 0}}; int p(int x, int y) { return (x<<13)|y; } int x(int p) { return (p>>13); } int y(int p) { return (p&((1<<13)-1)); } int n, m, k; string s[N]; bool vis[N][N]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cin >> n >> m >> k; for (int i=0; i<n; i++) cin >> s[i]; vector<int> q = {p(0, 0)}; vis[0][0] = true; int dist = 0; while (!vis[n-1][m-1]) { vector<int> nq; for (int v: q) { for (auto dir: DIRS) { int nx = x(v)+dir[0], ny = y(v)+dir[1]; if (0 <= nx && nx < n && 0 <= ny && ny < m && s[nx][ny] == '.' && !vis[nx][ny]) { vis[nx][ny] = true; nq.push_back(p(nx, ny)); } } } dist++; nq.swap(q); } long long a, b, necessary = (n+m-2), unnecessary = dist - (n+m-2); vector<long long> times; for (int i=0; i<k; i++) { cin >> a >> b; times.push_back(a * necessary + (a+b) * (unnecessary / 2)); } long long best_time = *min_element(times.begin(), times.end()); int cnt = count(times.begin(), times.end(), best_time); cout << best_time << " " << cnt << "\n"; return 0; } |
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