#include <cstdio>
#include <set>
#include <map>
#include <utility>
#include <deque>
int n,m,k;
bool** board;
long** dist;
void read() {
scanf("%d %d %d\n", &n, &m, &k);
board = new bool*[n];
dist = new long*[n];
for (int i=0; i<n; i++) {
board[i] = new bool[m];
dist[i] = new long[m];
}
for (int i=0; i<n; i++) {
for (int j=0; j<m; j++) {
char c;
scanf("%c", &c);
board[i][j] = (c == 'X');
}
scanf("\n");
}
}
void print() {
for (int i=0; i<n; i++) {
for (int j=0; j<m; j++) {
printf("%d", board[i][j]);
}
printf("\n");
}
}
long find_distance() {
std::deque<std::pair<int, int>> queue;
queue.emplace_back(0, 0);
dist[0][0] = 0;
while (queue.size() > 0) {
std::pair<int, int> p = queue.front();
queue.pop_front();
int i = p.first;
int j = p.second;
if (board[i][j] == false) {
board[i][j] = true;
//printf("(%d,%d)\n", i, j);
if (i == n - 1 && j == m - 1) {
return dist[i][j];
}
if (i-1 >= 0 && board[i-1][j] == false) {
dist[i-1][j] = dist[i][j] + 1;
queue.emplace_back(i-1, j);
}
if (j-1 >= 0 && board[i][j-1] == false) {
dist[i][j-1] = dist[i][j] + 1;
queue.emplace_back(i, j-1);
}
if (i+1 < n && board[i+1][j] == false) {
dist[i+1][j] = dist[i][j] + 1;
queue.emplace_back(i+1, j);
}
if (j+1 < m && board[i][j+1] == false) {
dist[i][j+1] = dist[i][j] + 1;
queue.emplace_back(i, j+1);
}
}
}
return -1;
}
int main() {
read();
//print();
long distance = find_distance();
// printf("distance=%d\n", distance);
long long opt_cost = -1;
int opt_count = 0;
for (int i=0; i<k; i++) {
long long a, b;
scanf("%lld %lld", &a, &b);
long long count_down = (long long) ((distance - (n + m - 2)) / 2);
long long count_up = distance - count_down;
long long cost = a * count_up + b * count_down;
// printf("%lld %lld %lld\n", count_down, count_up, cost);
if (opt_cost < 0 || cost < opt_cost) {
opt_cost = cost;
opt_count = 1;
} else if (cost == opt_cost) {
opt_count ++;
}
}
printf("%lld %d\n", opt_cost, opt_count);
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 | #include <cstdio> #include <set> #include <map> #include <utility> #include <deque> int n,m,k; bool** board; long** dist; void read() { scanf("%d %d %d\n", &n, &m, &k); board = new bool*[n]; dist = new long*[n]; for (int i=0; i<n; i++) { board[i] = new bool[m]; dist[i] = new long[m]; } for (int i=0; i<n; i++) { for (int j=0; j<m; j++) { char c; scanf("%c", &c); board[i][j] = (c == 'X'); } scanf("\n"); } } void print() { for (int i=0; i<n; i++) { for (int j=0; j<m; j++) { printf("%d", board[i][j]); } printf("\n"); } } long find_distance() { std::deque<std::pair<int, int>> queue; queue.emplace_back(0, 0); dist[0][0] = 0; while (queue.size() > 0) { std::pair<int, int> p = queue.front(); queue.pop_front(); int i = p.first; int j = p.second; if (board[i][j] == false) { board[i][j] = true; //printf("(%d,%d)\n", i, j); if (i == n - 1 && j == m - 1) { return dist[i][j]; } if (i-1 >= 0 && board[i-1][j] == false) { dist[i-1][j] = dist[i][j] + 1; queue.emplace_back(i-1, j); } if (j-1 >= 0 && board[i][j-1] == false) { dist[i][j-1] = dist[i][j] + 1; queue.emplace_back(i, j-1); } if (i+1 < n && board[i+1][j] == false) { dist[i+1][j] = dist[i][j] + 1; queue.emplace_back(i+1, j); } if (j+1 < m && board[i][j+1] == false) { dist[i][j+1] = dist[i][j] + 1; queue.emplace_back(i, j+1); } } } return -1; } int main() { read(); //print(); long distance = find_distance(); // printf("distance=%d\n", distance); long long opt_cost = -1; int opt_count = 0; for (int i=0; i<k; i++) { long long a, b; scanf("%lld %lld", &a, &b); long long count_down = (long long) ((distance - (n + m - 2)) / 2); long long count_up = distance - count_down; long long cost = a * count_up + b * count_down; // printf("%lld %lld %lld\n", count_down, count_up, cost); if (opt_cost < 0 || cost < opt_cost) { opt_cost = cost; opt_count = 1; } else if (cost == opt_cost) { opt_count ++; } } printf("%lld %d\n", opt_cost, opt_count); return 0; } |
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