#include<bits/stdc++.h>
using namespace std;
int tab[2009][2009], col[4000009], wyn[4000009];
queue<int> kol;
vector<int> graf[4000009];
string s;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n,m,k,a,b;
long long c,d,e = 1e16,f = 0;
cin>>n>>m>>k;
for(int i=1; i<=n; i++)
{
cin>>s;
for(int j=0; j<s.size(); j++) if(s[j] == 'X') tab[i][j+1] = 1;
}
for(int i=1; i<=n; i++)
{
for(int j=1; j<=m; j++)
{
if(tab[i][j] == 1) continue;
if(i > 1 && tab[i-1][j] == 0) graf[(i-1) * m + j].push_back((i-2) * m + j);
if(i < n && tab[i+1][j] == 0) graf[(i-1) * m + j].push_back(i * m + j);
if(j > 1 && tab[i][j-1] == 0) graf[(i-1) * m + j].push_back((i-1) * m + j - 1);
if(j < m && tab[i][j+1] == 0) graf[(i-1) * m + j].push_back((i-1) * m + j + 1);
}
}
kol.push(1);
while(!kol.empty())
{
a = kol.front();
kol.pop();
if(col[a] != 0) continue;
col[a] = 1;
for(int i=0; i<graf[a].size(); i++)
{
b = graf[a][i];
if((wyn[b] == 0 && b != 1) || wyn[b] > wyn[a] + 1)
{
wyn[b] = wyn[a]+1;
kol.push(b);
}
}
}
a = (wyn[n * m] - n - m + 2) / 2;
for(int i=1; i<=k; i++)
{
cin>>c>>d;
c = c * (n + m - 2 + a) + d * a;
if(c < e)
{
e = c;
f = 1;
}
else if(c == e) f++;
}
cout<<e<<" "<<f;
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 | #include<bits/stdc++.h> using namespace std; int tab[2009][2009], col[4000009], wyn[4000009]; queue<int> kol; vector<int> graf[4000009]; string s; int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n,m,k,a,b; long long c,d,e = 1e16,f = 0; cin>>n>>m>>k; for(int i=1; i<=n; i++) { cin>>s; for(int j=0; j<s.size(); j++) if(s[j] == 'X') tab[i][j+1] = 1; } for(int i=1; i<=n; i++) { for(int j=1; j<=m; j++) { if(tab[i][j] == 1) continue; if(i > 1 && tab[i-1][j] == 0) graf[(i-1) * m + j].push_back((i-2) * m + j); if(i < n && tab[i+1][j] == 0) graf[(i-1) * m + j].push_back(i * m + j); if(j > 1 && tab[i][j-1] == 0) graf[(i-1) * m + j].push_back((i-1) * m + j - 1); if(j < m && tab[i][j+1] == 0) graf[(i-1) * m + j].push_back((i-1) * m + j + 1); } } kol.push(1); while(!kol.empty()) { a = kol.front(); kol.pop(); if(col[a] != 0) continue; col[a] = 1; for(int i=0; i<graf[a].size(); i++) { b = graf[a][i]; if((wyn[b] == 0 && b != 1) || wyn[b] > wyn[a] + 1) { wyn[b] = wyn[a]+1; kol.push(b); } } } a = (wyn[n * m] - n - m + 2) / 2; for(int i=1; i<=k; i++) { cin>>c>>d; c = c * (n + m - 2 + a) + d * a; if(c < e) { e = c; f = 1; } else if(c == e) f++; } cout<<e<<" "<<f; return 0; } |
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