#pragma GCC optimize ("Ofast")
#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i=(a); i<(b); i++)
#define FORD(i, a, b) for (int i=(a); i>(b); i--)
#define PPC(x) __builtin_popcount(x)
#define MSB(x) (63 - __builtin_clzll(x))
#define SZ(x) ((int)(x).size())
#define HASK(S, x) (S.find(x) != S.end())
#define pb push_back
#define ALL(x) (x).begin(), (x).end()
#define ithBit(m, i) ((m) >> (i) & 1)
#define ft first
#define sd second
#define kw(a) ((a) * (a))
#ifdef DEBUG
#include "debug.h"
#else
#define dbg(...) 0
#endif
using namespace std;
const int maxN = 1 << 11;
const long long INF = 10000000000000000ll;
char T[maxN][maxN];
int dist[maxN][maxN];
vector <pair <int, int> > dx = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}};
queue <pair <int, int> > Q;
void solve()
{
int n, m, q;
scanf ("%d%d%d", &n, &m, &q);
FOR(i, 0, n)
scanf ("%s", T[i]);
#define INS(i, j) Q.push({i, j}), T[i][j] = 'X'
for (INS(0, 0); !Q.empty(); Q.pop())
{
auto [i, j] = Q.front();
for (auto [a, b] : dx)
{
a += i, b += j;
if (0 <= a and a < n and 0 <= b and b < m and T[a][b] == '.')
dist[a][b] = dist[i][j] + 1, INS(a, b);
}
}
dbg(dist, n, m);
int& x = dist[n-1][m-1];
dbg(x);
int up = n+m-2;
x -= up;
assert(x % 2 == 0);
up += x / 2;
int down = x / 2;
dbg(up), dbg(down);
long long mn = INF;
int ile = 0;
while (q--)
{
int a, b;
scanf ("%d%d", &a, &b);
long long prop = 1ll * a * up + 1ll * b * down;
if (mn > prop)
mn = prop, ile = 0;
if (mn == prop)
ile++;
}
printf("%lld %d\n", mn, ile);
}
int main()
{
int t = 1;
//scanf ("%d", &t);
FOR(tid, 1, t+1)
{
//printf("Case #%d: ", tid);
solve();
}
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 | #pragma GCC optimize ("Ofast") #define _USE_MATH_DEFINES #include <bits/stdc++.h> #define FOR(i, a, b) for (int i=(a); i<(b); i++) #define FORD(i, a, b) for (int i=(a); i>(b); i--) #define PPC(x) __builtin_popcount(x) #define MSB(x) (63 - __builtin_clzll(x)) #define SZ(x) ((int)(x).size()) #define HASK(S, x) (S.find(x) != S.end()) #define pb push_back #define ALL(x) (x).begin(), (x).end() #define ithBit(m, i) ((m) >> (i) & 1) #define ft first #define sd second #define kw(a) ((a) * (a)) #ifdef DEBUG #include "debug.h" #else #define dbg(...) 0 #endif using namespace std; const int maxN = 1 << 11; const long long INF = 10000000000000000ll; char T[maxN][maxN]; int dist[maxN][maxN]; vector <pair <int, int> > dx = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}}; queue <pair <int, int> > Q; void solve() { int n, m, q; scanf ("%d%d%d", &n, &m, &q); FOR(i, 0, n) scanf ("%s", T[i]); #define INS(i, j) Q.push({i, j}), T[i][j] = 'X' for (INS(0, 0); !Q.empty(); Q.pop()) { auto [i, j] = Q.front(); for (auto [a, b] : dx) { a += i, b += j; if (0 <= a and a < n and 0 <= b and b < m and T[a][b] == '.') dist[a][b] = dist[i][j] + 1, INS(a, b); } } dbg(dist, n, m); int& x = dist[n-1][m-1]; dbg(x); int up = n+m-2; x -= up; assert(x % 2 == 0); up += x / 2; int down = x / 2; dbg(up), dbg(down); long long mn = INF; int ile = 0; while (q--) { int a, b; scanf ("%d%d", &a, &b); long long prop = 1ll * a * up + 1ll * b * down; if (mn > prop) mn = prop, ile = 0; if (mn == prop) ile++; } printf("%lld %d\n", mn, ile); } int main() { int t = 1; //scanf ("%d", &t); FOR(tid, 1, t+1) { //printf("Case #%d: ", tid); solve(); } return 0; } |
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