#include<bits/stdc++.h>
#define ff first
#define ss second
#define mp make_pair
#define pb push_back
#define gcu getchar_unlocked
#define INF 1000000000
#define ok(_a0,_a1) ((_a0>=1)&&(_a0<=n)&&(_a1>=1)&&(_a1<=m)&&(!t[_a0][_a1]))
using namespace std;
typedef long long ll;
typedef pair<int,int> pp;
int n,m,o;
ll w=1000000000000000000;
int wcount=0;
int main()
{
scanf("%d%d%d",&n,&m,&o);
vector<vector<int>>cost(n+2,vector<int>(m+2,INF));
vector<vector<int>>t(n+2,vector<int>(m+2,0));
for(int i=1;i<=n;++i)
{
char c=gcu();
while((c!='X')&&(c!='.')) c=gcu();
for(int j=1;j<=m;++j)
{
t[i][j]=(c=='X');
c=gcu();
}
}
deque<pp> dq;
cost[1][1]=0;
dq.push_front(mp(1,1));
while(!dq.empty())
{
pp di=dq.front();
dq.pop_front();
if(cost[di.ff][di.ss]<cost[di.ff-1][di.ss])
{
if(ok(di.ff-1,di.ss))
{
cost[di.ff-1][di.ss]=cost[di.ff][di.ss];
dq.push_front(mp(di.ff-1,di.ss));
}
}
if(cost[di.ff][di.ss]<cost[di.ff][di.ss-1])
{
if(ok(di.ff,di.ss-1))
{
cost[di.ff][di.ss-1]=cost[di.ff][di.ss];
dq.push_front(mp(di.ff,di.ss-1));
}
}
if(cost[di.ff][di.ss]+1<cost[di.ff+1][di.ss])
{
if(ok(di.ff+1,di.ss))
{
cost[di.ff+1][di.ss]=cost[di.ff][di.ss]+1;
dq.push_back(mp(di.ff+1,di.ss));
}
}
if(cost[di.ff][di.ss]+1<cost[di.ff][di.ss+1])
{
if(ok(di.ff,di.ss+1))
{
cost[di.ff][di.ss+1]=cost[di.ff][di.ss]+1;
dq.push_back(mp(di.ff,di.ss+1));
}
}
}
ll w1=cost[n][m],w2=cost[n][m]-n-m+2;
for(int i=0;i<o;++i)
{
ll p,q;
scanf("%lld%lld",&p,&q);
if(p*w1+q*w2<w)
{
w=p*w1+q*w2;
wcount=0;
}
if(p*w1+q*w2==w) ++wcount;
}
printf("%lld %lld\n",w,wcount);
}
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 | #include<bits/stdc++.h> #define ff first #define ss second #define mp make_pair #define pb push_back #define gcu getchar_unlocked #define INF 1000000000 #define ok(_a0,_a1) ((_a0>=1)&&(_a0<=n)&&(_a1>=1)&&(_a1<=m)&&(!t[_a0][_a1])) using namespace std; typedef long long ll; typedef pair<int,int> pp; int n,m,o; ll w=1000000000000000000; int wcount=0; int main() { scanf("%d%d%d",&n,&m,&o); vector<vector<int>>cost(n+2,vector<int>(m+2,INF)); vector<vector<int>>t(n+2,vector<int>(m+2,0)); for(int i=1;i<=n;++i) { char c=gcu(); while((c!='X')&&(c!='.')) c=gcu(); for(int j=1;j<=m;++j) { t[i][j]=(c=='X'); c=gcu(); } } deque<pp> dq; cost[1][1]=0; dq.push_front(mp(1,1)); while(!dq.empty()) { pp di=dq.front(); dq.pop_front(); if(cost[di.ff][di.ss]<cost[di.ff-1][di.ss]) { if(ok(di.ff-1,di.ss)) { cost[di.ff-1][di.ss]=cost[di.ff][di.ss]; dq.push_front(mp(di.ff-1,di.ss)); } } if(cost[di.ff][di.ss]<cost[di.ff][di.ss-1]) { if(ok(di.ff,di.ss-1)) { cost[di.ff][di.ss-1]=cost[di.ff][di.ss]; dq.push_front(mp(di.ff,di.ss-1)); } } if(cost[di.ff][di.ss]+1<cost[di.ff+1][di.ss]) { if(ok(di.ff+1,di.ss)) { cost[di.ff+1][di.ss]=cost[di.ff][di.ss]+1; dq.push_back(mp(di.ff+1,di.ss)); } } if(cost[di.ff][di.ss]+1<cost[di.ff][di.ss+1]) { if(ok(di.ff,di.ss+1)) { cost[di.ff][di.ss+1]=cost[di.ff][di.ss]+1; dq.push_back(mp(di.ff,di.ss+1)); } } } ll w1=cost[n][m],w2=cost[n][m]-n-m+2; for(int i=0;i<o;++i) { ll p,q; scanf("%lld%lld",&p,&q); if(p*w1+q*w2<w) { w=p*w1+q*w2; wcount=0; } if(p*w1+q*w2==w) ++wcount; } printf("%lld %lld\n",w,wcount); } |
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