#include <bits/stdc++.h>
using namespace std;
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int n,m,k;
cin>>n>>m>>k;
string tab="";
string use="";
vector<int> *sl = new vector<int>[n*m];
bool *visited = new bool[n*m];
//vector<int> v[1000];
for(int i=0; i<n;i++)
{
cin>>use;
tab+=use;
}
for(int i=0;i<n*m;i++)
{
visited[i]=false;
if(tab[i]!='.')
continue;
if(i-m>=0)
sl[i].push_back(i-m);
if(i+m<n*m)
sl[i].push_back(i+m);
if(i%m!=0)
sl[i].push_back(i-1);
if((i+1)%m!=0)
sl[i].push_back(i+1);
}
queue<int> Q;
int *P = new int[n*m];
Q.push(0);
int u,v;
P[0]=-1;
visited[0]=true;
while(Q.empty()==false)
{
v = Q.front();
Q.pop();
if(v==n*m-1)
break;
for(int i=0;i<sl[v].size();i++)
{
u=sl[v].at(i);
if(!visited[u])
{
P[u]=v;
Q.push(u);
visited[u]=true;
}
}
}
int up=0,down=0;
while(Q.empty()==0)
{
Q.pop();
}
while(v>0)
{
if(P[v]==v-1 || P[v]==v-m)
{
up++;
}
else down++;
v=P[v];
}
int a,b,eq;
int ans=INT_MAX, count=0;
for(int i=0;i<k;i++)
{
cin>>a>>b;
eq=a*up+b*down;
if(eq<ans)
{
count=1;
ans=eq;
}
else if(eq==ans)
{
count++;
}
}
cout<<ans<<" "<<count;
delete[] visited;
delete[] sl;
delete[] P;
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 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | #include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n,m,k; cin>>n>>m>>k; string tab=""; string use=""; vector<int> *sl = new vector<int>[n*m]; bool *visited = new bool[n*m]; //vector<int> v[1000]; for(int i=0; i<n;i++) { cin>>use; tab+=use; } for(int i=0;i<n*m;i++) { visited[i]=false; if(tab[i]!='.') continue; if(i-m>=0) sl[i].push_back(i-m); if(i+m<n*m) sl[i].push_back(i+m); if(i%m!=0) sl[i].push_back(i-1); if((i+1)%m!=0) sl[i].push_back(i+1); } queue<int> Q; int *P = new int[n*m]; Q.push(0); int u,v; P[0]=-1; visited[0]=true; while(Q.empty()==false) { v = Q.front(); Q.pop(); if(v==n*m-1) break; for(int i=0;i<sl[v].size();i++) { u=sl[v].at(i); if(!visited[u]) { P[u]=v; Q.push(u); visited[u]=true; } } } int up=0,down=0; while(Q.empty()==0) { Q.pop(); } while(v>0) { if(P[v]==v-1 || P[v]==v-m) { up++; } else down++; v=P[v]; } int a,b,eq; int ans=INT_MAX, count=0; for(int i=0;i<k;i++) { cin>>a>>b; eq=a*up+b*down; if(eq<ans) { count=1; ans=eq; } else if(eq==ans) { count++; } } cout<<ans<<" "<<count; delete[] visited; delete[] sl; delete[] P; return 0; } |
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