#include<bits/stdc++.h>
#define st first
#define nd second
using namespace std;
const int N=2e3+5;
int tab[N][N];
int d[N][N];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
int n, m, k;
cin>>n>>m>>k;
for(int i=0; i<n; i++){
string s;
cin>>s;
for(int j=0; j<m; j++){
tab[i][j]=(s[j]=='.');
}
}
vector<pair<int, int> > V;
V.push_back({0, 0});
d[0][0]=1;
while(V.size()){
for(int i=0; i<V.size(); i++){
pair<int, int> v=V[i];
if(v.nd<m-1 && !d[v.st][v.nd+1] && tab[v.st][v.nd+1]){
d[v.st][v.nd+1]=d[v.st][v.nd];
V.push_back({v.st, v.nd+1});
}
if(v.st<n-1 && !d[v.st+1][v.nd] && tab[v.st+1][v.nd]){
d[v.st+1][v.nd]=d[v.st][v.nd];
V.push_back({v.st+1, v.nd});
}
}
vector<pair<int, int> > V2;
while(V.size()){
pair<int, int> v=V.back();
V.pop_back();
if(v.nd && !d[v.st][v.nd-1] && tab[v.st][v.nd-1]){
d[v.st][v.nd-1]=d[v.st][v.nd]+1;
V2.push_back({v.st, v.nd-1});
}
if(v.st && !d[v.st-1][v.nd] && tab[v.st-1][v.nd]){
d[v.st-1][v.nd]=d[v.st][v.nd]+1;
V2.push_back({v.st-1, v.nd});
}
}
V=V2;
}
long long t=d[n-1][m-1]-1;
//cout<<t<<" ";
long long M=1e18;
int ile=0;
while(k--){
int a, b;
cin>>a>>b;
long long l=a*(t+n+m-2)+b*t;
if(l<M){
M=l;
ile=1;
}
else if(l==M)ile++;
}
cout<<M<<" "<<ile;
}
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 | #include<bits/stdc++.h> #define st first #define nd second using namespace std; const int N=2e3+5; int tab[N][N]; int d[N][N]; int main(){ ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int n, m, k; cin>>n>>m>>k; for(int i=0; i<n; i++){ string s; cin>>s; for(int j=0; j<m; j++){ tab[i][j]=(s[j]=='.'); } } vector<pair<int, int> > V; V.push_back({0, 0}); d[0][0]=1; while(V.size()){ for(int i=0; i<V.size(); i++){ pair<int, int> v=V[i]; if(v.nd<m-1 && !d[v.st][v.nd+1] && tab[v.st][v.nd+1]){ d[v.st][v.nd+1]=d[v.st][v.nd]; V.push_back({v.st, v.nd+1}); } if(v.st<n-1 && !d[v.st+1][v.nd] && tab[v.st+1][v.nd]){ d[v.st+1][v.nd]=d[v.st][v.nd]; V.push_back({v.st+1, v.nd}); } } vector<pair<int, int> > V2; while(V.size()){ pair<int, int> v=V.back(); V.pop_back(); if(v.nd && !d[v.st][v.nd-1] && tab[v.st][v.nd-1]){ d[v.st][v.nd-1]=d[v.st][v.nd]+1; V2.push_back({v.st, v.nd-1}); } if(v.st && !d[v.st-1][v.nd] && tab[v.st-1][v.nd]){ d[v.st-1][v.nd]=d[v.st][v.nd]+1; V2.push_back({v.st-1, v.nd}); } } V=V2; } long long t=d[n-1][m-1]-1; //cout<<t<<" "; long long M=1e18; int ile=0; while(k--){ int a, b; cin>>a>>b; long long l=a*(t+n+m-2)+b*t; if(l<M){ M=l; ile=1; } else if(l==M)ile++; } cout<<M<<" "<<ile; } |
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