#include <iostream>
#include <vector>
#include <deque>
using namespace std;
const int maxi = 2005;
const int MAXI = 1000000005;
const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, -1, 0, 1};
long long mini = 1e18 + 1;
int ile = 1000005;
pair<int, int> res;
int n, m, k;
string lab[maxi];
pair<int, int> start;
pair<int, int> meta;
deque<pair<int, int>> q;
pair<int, int> dist[maxi][maxi];
bool w(pair<int, int> p){
return (p.first >= 0) && (p.second >= 0) && (p.first < n) && (p.second < m);
}
pair<int, int> bfs(){
q.clear();
q.push_back(start);
dist[start.first][start.second] = make_pair(0, 0);
while (!q.empty()){
pair<int, int> x = q.front();
q.pop_front();
for (int i = 0; i < 2; i++){
pair<int, int> nx = make_pair(x.first + dx[i], x.second + dy[i]);
if (w(nx) && lab[nx.first][nx.second] != 'X' && dist[nx.first][nx.second] == make_pair(MAXI, MAXI)){
dist[nx.first][nx.second] = make_pair(dist[x.first][x.second].first + 1, dist[x.first][x.second].second);
q.push_back(nx);
}
}
for (int i = 2; i < 4; i++){
pair<int, int> nx = make_pair(x.first + dx[i], x.second + dy[i]);
if (w(nx) && lab[nx.first][nx.second] != 'X' && dist[nx.first][nx.second] == make_pair(MAXI, MAXI)){
dist[nx.first][nx.second] = make_pair(dist[x.first][x.second].first, dist[x.first][x.second].second + 1);
q.push_back(nx);
}
}
}
return dist[meta.first][meta.second];
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> n >> m >> k;
for (int i = 0; i < n; i++){
cin >> lab[i];
}
for (int i = 0; i < maxi; i++){
for (int j = 0; j < maxi; j++){
dist[i][j] = make_pair(MAXI, MAXI);
}
}
start = make_pair(0, 0);
meta = make_pair(n - 1, m - 1);
res = bfs();
for (int i = 0; i < k; i++){
long long a, b;
cin >> a >> b;
long long t = a*res.second + b*res.first;
if (t < mini){
mini = t;
ile = 1;
}
else if (t == mini)ile++;
}
cout << mini << " " << ile << endl;
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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | #include <iostream> #include <vector> #include <deque> using namespace std; const int maxi = 2005; const int MAXI = 1000000005; const int dx[] = {-1, 0, 1, 0}; const int dy[] = {0, -1, 0, 1}; long long mini = 1e18 + 1; int ile = 1000005; pair<int, int> res; int n, m, k; string lab[maxi]; pair<int, int> start; pair<int, int> meta; deque<pair<int, int>> q; pair<int, int> dist[maxi][maxi]; bool w(pair<int, int> p){ return (p.first >= 0) && (p.second >= 0) && (p.first < n) && (p.second < m); } pair<int, int> bfs(){ q.clear(); q.push_back(start); dist[start.first][start.second] = make_pair(0, 0); while (!q.empty()){ pair<int, int> x = q.front(); q.pop_front(); for (int i = 0; i < 2; i++){ pair<int, int> nx = make_pair(x.first + dx[i], x.second + dy[i]); if (w(nx) && lab[nx.first][nx.second] != 'X' && dist[nx.first][nx.second] == make_pair(MAXI, MAXI)){ dist[nx.first][nx.second] = make_pair(dist[x.first][x.second].first + 1, dist[x.first][x.second].second); q.push_back(nx); } } for (int i = 2; i < 4; i++){ pair<int, int> nx = make_pair(x.first + dx[i], x.second + dy[i]); if (w(nx) && lab[nx.first][nx.second] != 'X' && dist[nx.first][nx.second] == make_pair(MAXI, MAXI)){ dist[nx.first][nx.second] = make_pair(dist[x.first][x.second].first, dist[x.first][x.second].second + 1); q.push_back(nx); } } } return dist[meta.first][meta.second]; } int main(){ ios_base::sync_with_stdio(false); cin.tie(0); cin >> n >> m >> k; for (int i = 0; i < n; i++){ cin >> lab[i]; } for (int i = 0; i < maxi; i++){ for (int j = 0; j < maxi; j++){ dist[i][j] = make_pair(MAXI, MAXI); } } start = make_pair(0, 0); meta = make_pair(n - 1, m - 1); res = bfs(); for (int i = 0; i < k; i++){ long long a, b; cin >> a >> b; long long t = a*res.second + b*res.first; if (t < mini){ mini = t; ile = 1; } else if (t == mini)ile++; } cout << mini << " " << ile << endl; return 0; } |
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