#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define L long long
#define MP make_pair
#define REP(i, n) for(int i = 0; i < n; ++i)
#define REPR(i, n) for(int i = n - 1; i >= 0; --i)
#define FOR(i, a, b) for(int i = a; i < b; ++i)
#define FORR(i, a, b) for(int i = b - 1; i >= a; --i)
#define EB emplace_back
#define ST first
#define ND second
#define S size()
#define RS resize
using VI = vector<int>;
using VVI = vector<VI>;
using PI = pair<int, int>;
using VPI = vector<PI>;
using VVPI = vector<VPI>;
using VL = vector<L>;
using VVL = vector<VL>;
using VB = vector<bool>;
using VC = vector<char>;
VVI g;
VL d;
VB vis;
void bfs(int start)
{
queue<int> q;
q.push(start);
vis[start] = true;
while (!q.empty())
{
int v = q.front();
q.pop();
for (int u : g[v])
if (!vis[u])
{
vis[u] = true;
d[u] = d[v] + 1;
q.push(u);
}
}
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n, m, k;
cin >> n >> m >> k;
g.RS(n * m);
d.RS(n * m);
vis.RS(n * m);
vector<VC> p(n, VC(m));
REP(i, n)
REP(j, m)
cin >> p[i][j];
REP(i, n)
REP(j, m)
if (p[i][j] == '.')
{
if (i > 0 && p[i - 1][j] == '.')
g[m * i + j].EB(m * (i - 1) + j);
if (i < n - 1 && p[i + 1][j] == '.')
g[m * i + j].EB(m * (i + 1) + j);
if (j > 0 && p[i][j - 1] == '.')
g[m * i + j].EB(m * i + j - 1);
if (j < m - 1 && p[i][j + 1] == '.')
g[m * i + j].EB(m * i + j + 1);
}
VL a(k), b(k);
REP(i, k)
cin >> a[i] >> b[i];
bfs(0);
L od = d[n * m - 1];
L m1 = (L)(n + m - 2);
od -= m1;
m1 += od / 2;
L m2 = od / 2;
L wyn = (L)1e18;
int licz = 0;
REP(i, k)
{
if (a[i] * m1 + b[i] * m2 == wyn)
licz++;
else if (a[i] * m1 + b[i] * m2 < wyn)
{
licz = 1;
wyn = a[i] * m1 + b[i] * m2;
}
}
cout << wyn << ' ' << licz;
}
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 99 100 101 102 103 104 105 | #include <bits/stdc++.h> using namespace std; #define endl '\n' #define L long long #define MP make_pair #define REP(i, n) for(int i = 0; i < n; ++i) #define REPR(i, n) for(int i = n - 1; i >= 0; --i) #define FOR(i, a, b) for(int i = a; i < b; ++i) #define FORR(i, a, b) for(int i = b - 1; i >= a; --i) #define EB emplace_back #define ST first #define ND second #define S size() #define RS resize using VI = vector<int>; using VVI = vector<VI>; using PI = pair<int, int>; using VPI = vector<PI>; using VVPI = vector<VPI>; using VL = vector<L>; using VVL = vector<VL>; using VB = vector<bool>; using VC = vector<char>; VVI g; VL d; VB vis; void bfs(int start) { queue<int> q; q.push(start); vis[start] = true; while (!q.empty()) { int v = q.front(); q.pop(); for (int u : g[v]) if (!vis[u]) { vis[u] = true; d[u] = d[v] + 1; q.push(u); } } } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n, m, k; cin >> n >> m >> k; g.RS(n * m); d.RS(n * m); vis.RS(n * m); vector<VC> p(n, VC(m)); REP(i, n) REP(j, m) cin >> p[i][j]; REP(i, n) REP(j, m) if (p[i][j] == '.') { if (i > 0 && p[i - 1][j] == '.') g[m * i + j].EB(m * (i - 1) + j); if (i < n - 1 && p[i + 1][j] == '.') g[m * i + j].EB(m * (i + 1) + j); if (j > 0 && p[i][j - 1] == '.') g[m * i + j].EB(m * i + j - 1); if (j < m - 1 && p[i][j + 1] == '.') g[m * i + j].EB(m * i + j + 1); } VL a(k), b(k); REP(i, k) cin >> a[i] >> b[i]; bfs(0); L od = d[n * m - 1]; L m1 = (L)(n + m - 2); od -= m1; m1 += od / 2; L m2 = od / 2; L wyn = (L)1e18; int licz = 0; REP(i, k) { if (a[i] * m1 + b[i] * m2 == wyn) licz++; else if (a[i] * m1 + b[i] * m2 < wyn) { licz = 1; wyn = a[i] * m1 + b[i] * m2; } } cout << wyn << ' ' << licz; } |
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