#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,b) for (int i = (a); i <= (b); ++i)
#define REPD(i,a,b) for (int i = (a); i >= (b); --i)
#define FORI(i,n) REP(i,1,n)
#define FOR(i,n) REP(i,0,int(n)-1)
#define mp make_pair
#define pb push_back
#define pii pair<int,int>
#define vi vector<int>
#define ll long long
#define SZ(x) int((x).size())
#define DBG(v) cerr << #v << " = " << (v) << endl;
#define FOREACH(i,t) for (typeof(t.begin()) i=t.begin(); i!=t.end(); i++)
#define fi first
#define se second
const int N = 2020;
const int inf = (N+5)*(N+5)+3;
int dx[4] = {1, 0,-1, 0};
int dy[4] = {0, 1, 0,-1};
int n,m,k;
char s[N][N];
int d[N][N];
int main() {
scanf("%d%d%d", &n, &m, &k);
FORI(i,n) scanf("%s", s[i]+1);
FOR(i,n+2) s[i][0] = s[i][m+1] = 'X';
FOR(j,m+2) s[0][j] = s[n+1][j] = 'X';
FORI(i,n+2) FORI(j,m+2) d[i][j] = inf;
queue<int> q;
q.push(1);
q.push(1);
d[1][1] = 0;
while (!q.empty()) {
int x = q.front(); q.pop();
int y = q.front(); q.pop();
FOR(w,4) {
int nx = x+dx[w], ny = y+dy[w];
if (s[nx][ny] == 'X') continue;
if (d[nx][ny] < inf) continue;
d[nx][ny] = d[x][y] + 1;
q.push(nx);
q.push(ny);
}
}
int L = d[n][m];
int u = (L+2-n-m) / 2;
int La = n+m-2 + u, Lb = u;
//cerr << L << " " << u << " " << La << " " << Lb << "\n";
ll best = 1000100100LL * inf;
int cntbest = 0;
FOR(i,k) {
int a,b;
scanf("%d%d", &a, &b);
ll cur = 1LL * a * La + 1LL * b * Lb;
if (cur < best) {
best = cur;
cntbest = 0;
}
if (cur == best) cntbest++;
}
printf("%lld %d\n", best, cntbest);
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 | #include <bits/stdc++.h> using namespace std; #define REP(i,a,b) for (int i = (a); i <= (b); ++i) #define REPD(i,a,b) for (int i = (a); i >= (b); --i) #define FORI(i,n) REP(i,1,n) #define FOR(i,n) REP(i,0,int(n)-1) #define mp make_pair #define pb push_back #define pii pair<int,int> #define vi vector<int> #define ll long long #define SZ(x) int((x).size()) #define DBG(v) cerr << #v << " = " << (v) << endl; #define FOREACH(i,t) for (typeof(t.begin()) i=t.begin(); i!=t.end(); i++) #define fi first #define se second const int N = 2020; const int inf = (N+5)*(N+5)+3; int dx[4] = {1, 0,-1, 0}; int dy[4] = {0, 1, 0,-1}; int n,m,k; char s[N][N]; int d[N][N]; int main() { scanf("%d%d%d", &n, &m, &k); FORI(i,n) scanf("%s", s[i]+1); FOR(i,n+2) s[i][0] = s[i][m+1] = 'X'; FOR(j,m+2) s[0][j] = s[n+1][j] = 'X'; FORI(i,n+2) FORI(j,m+2) d[i][j] = inf; queue<int> q; q.push(1); q.push(1); d[1][1] = 0; while (!q.empty()) { int x = q.front(); q.pop(); int y = q.front(); q.pop(); FOR(w,4) { int nx = x+dx[w], ny = y+dy[w]; if (s[nx][ny] == 'X') continue; if (d[nx][ny] < inf) continue; d[nx][ny] = d[x][y] + 1; q.push(nx); q.push(ny); } } int L = d[n][m]; int u = (L+2-n-m) / 2; int La = n+m-2 + u, Lb = u; //cerr << L << " " << u << " " << La << " " << Lb << "\n"; ll best = 1000100100LL * inf; int cntbest = 0; FOR(i,k) { int a,b; scanf("%d%d", &a, &b); ll cur = 1LL * a * La + 1LL * b * Lb; if (cur < best) { best = cur; cntbest = 0; } if (cur == best) cntbest++; } printf("%lld %d\n", best, cntbest); return 0; } |
English