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- #include <iostream>
- #include <queue>
- using namespace std;
- int main() {
- int redovi, koloni;
- cin >> redovi >> koloni;
- char lavirint[redovi][koloni];
- int poseteno[redovi][koloni], poseteno2[redovi][koloni], poseteno3[redovi][koloni];
- int si, sj;
- for(int i = 0; i < redovi; i++) {
- for(int j = 0; j < koloni; j++) {
- cin >> lavirint[i][j];
- if(lavirint[i][j] == 'P') {
- si = i;
- sj = j;
- }
- poseteno[i][j] = 0;
- poseteno2[i][j] = 0;
- poseteno3[i][j] = 0;
- }
- }
- int direction_i[] = {+1, -1, 0, 0};
- int direction_j[] = {0, 0, +1,-1};
- int direction2_i[] = {+2, -2, 0, 0};
- int direction2_j[] = {0, 0, +2, -2};
- int direction3_i[] = {+3, -3, 0, 0};
- int direction3_j[] = {0, 0, +3, -3};
- queue<int> Q;
- Q.push(si);
- Q.push(sj);
- Q.push(1);
- Q.push(0);
- poseteno[si][sj] = 1;
- while(Q.size() > 0) {
- int ci = Q.front();
- Q.pop();
- int cj = Q.front();
- Q.pop();
- int tip_cekor = Q.front();
- Q.pop();
- int cekor = Q.front();
- Q.pop();
- cout << ci << " " << cj << endl;
- if(lavirint[ci][cj] == 'K') {
- cout << cekor << endl;
- break;
- }
- if(tip_cekor == 1) {
- for(int i = 0; i < 4; i++) {
- int ti = ci + direction_i[i];
- int tj = cj + direction_j[i];
- if(ti >= 0 and ti < redovi and tj >= 0 and tj < koloni and lavirint[ti][tj] != '#' and poseteno[ti][tj] == 0) {
- Q.push(ti);
- Q.push(tj);
- Q.push(2);
- Q.push(cekor + 1);
- poseteno[ti][tj] = 1;
- }
- }
- }
- else if(tip_cekor == 2) {
- for(int i = 0; i < 4; i++) {
- int ti = ci + direction_i[i];
- int tj = cj + direction_j[i];
- if(ti >= 0 and ti < redovi and tj >= 0 and tj < koloni and lavirint[ti][tj] != '#') {
- ti = ci + direction2_i[i];
- tj = cj + direction2_j[i];
- if(ti >= 0 and tj < redovi and tj >= 0 and tj < koloni and lavirint[ti][tj] != '#' and poseteno2[ti][tj] == 0) {
- Q.push(ti);
- Q.push(tj);
- Q.push(3);
- Q.push(cekor + 1);
- poseteno2[ti][tj] = 1;
- }
- }
- }
- }
- else if(tip_cekor == 3) {
- for(int i = 0; i < 4; i++) {
- int ti = ci + direction_i[i];
- int tj = cj + direction_j[i];
- if(ti >= 0 and ti < redovi and tj >= 0 and tj < koloni and lavirint[ti][tj] != '#') {
- ti = ci + direction2_i[i];
- tj = cj + direction2_j[i];
- if(ti >= 0 and ti < redovi and tj >= 0 and tj < koloni and lavirint[ti][tj] != '#') {
- ti = ci + direction3_i[i];
- tj = cj + direction3_j[i];
- if(ti >= 0 and ti < redovi and tj >= 0 and tj < koloni and lavirint[ti][tj] != '#' and poseteno3[ti][tj] == 0) {
- Q.push(ti);
- Q.push(tj);
- Q.push(1);
- Q.push(cekor + 1);
- poseteno3[ti][tj] = 1;
- }
- }
- }
- }
- }
- }
- return 0;
- }
- /*
- 4 7
- P......
- #.##K..
- .#.#..#
- ##..##.
- **/
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