bakterije

input/code.cpp: In function 'int main()':
input/code.cpp:41:20: warning: array subscript has type 'char' [-Wchar-subscripts]
     bd[ba] = tr[fak];
                    ^

#include <bits/stdc++.h>

#define i64 long long
#define u64 unsigned long long
#define i32 int
#define u32 unsigned int

#define pii pair<int, int>
#define pll pair<long long, long long>
#define F first
#define S second
#define ld long double
#define defmod 1000000007

#define mati64(a,b) vector<vector<i64>>(a, vector<i64>(b, 0));
using namespace std;

int fuckme[4][2];
int main(){
  cin.sync_with_stdio(0);
  cin.tie(0);
  int tr[1000];
  fuckme[0][0] = -1;
  fuckme[1][1] = 1;
  fuckme[2][0] = 1;
  fuckme[3][1] = -1;
  tr['U'] = 0;
  tr['R'] = 1;
  tr['D'] = 2;
  tr['L'] = 3;
  int n, m, k; cin >> n >> m >> k;
  int x, y; cin >> x >> y;
  x--; 
  y--;
  int bi[10], bj[10], bd[10];
  string t[5][55];
  for(int ba = 0; ba < k; ++ba){
    char fak; cin >> bi[ba] >> bj[ba] >> fak;
    bi[ba]--;
    bj[ba]--;
    bd[ba] = tr[fak];
    for(int i = 0; i < n; ++i)
      cin >> t[ba][i];	
  }
  
  
  pair<pii, pii> ne[5][55][55][4];
  for(int ba = 0; ba < k; ++ba){
  for(int i = 0; i < n; ++i){
    for(int j = 0; j < m; ++j){
      for(int di = 0; di < 4; ++di){
	int ndi = (di+t[ba][i][j]-'0')%4;
	if(i == 0 && ndi == 0)
	  ndi = 2;
	else if(j == 0 && ndi == 3)
	  ndi = 1;
	else if(i == n-1 && ndi == 2)
	  ndi = 0;
	else if(j == m-1 && ndi == 1)
	  ndi = 3;
	pii mv = {i+fuckme[ndi][0], j+fuckme[ndi][1]};
	ne[ba][i][j][di] = {mv, {ndi, 0}};
      }
    }
  }
  }
  vector<int> myy(10, -1), lam(10, -1);
  vector<i64> es[10], ss[10];
  for(int ba = 0; ba < k; ++ba){
    queue<pair<pii, pii>> q;
    q.push({{bi[ba], bj[ba]}, {bd[ba], 0}});
    bool d1[55][55][4] = {0};
    int dis[55][55][4] = {0};
    while(!q.empty()){
      int i = q.front().F.F, j = q.front().F.S, di = q.front().S.F, d = q.front().S.S;
      q.pop();
      //cout << "taalla " << i << "," << j << " " << di << " " << d << endl;
      if(d1[i][j][di]){
	while(es[ba].size() > 0 && es[ba].back() >= dis[i][j][di]){
	  ss[ba].push_back(es[ba].back());
	  es[ba].pop_back();
	}
	lam[ba] = d-dis[i][j][di];
	break;
      }
      d1[i][j][di] = 1;
      dis[i][j][di] = d;
      if(i == x && j == y)
	es[ba].push_back(d);
      pair<pii, pii> lul = ne[ba][i][j][di];
      lul.S.S = d+1;
      q.push(lul);
    }
    /*
    cout << "bakteeri " << ba << " : ";
    for(auto f: es[ba])
      cout << f << " ";
    cout << "syklin koko " << lam[ba] << " ";
    cout << "syklissa ";
    for(auto f: ss[ba])
      cout << f<< " ";
    cout << endl;
    */ 
    
  }
  i64 ans = 1LL<<60;
  for(int ba = 0; ba < k; ++ba){
    for(auto f: es[ba]){
      bool ok = true;
      for(int ba2 = 0; ba2 < k; ++ba2){
	if(ba2 == ba)
	  continue;
	bool ok2 = false;
	for(auto ff: es[ba2]){
	  if(ff == f)
	    ok2 = true;
	}
	for(auto ff: ss[ba2]){
	  if(f-ff >= 0 && (f-ff)%lam[ba2] == 0)
	    ok2 = true;
	}
	ok&=ok2;  
      }
      if(ok)
	ans = min(ans, f);
    }
  }
  for(int ba = 0; ba < k; ++ba){
    for(auto fff: ss[ba]){
      for(int i = 0; i < 1000000; ++i){
	i64 f = fff+i*lam[ba];
	//cout << "taalla " << f << endl;
      bool ok = true;
      for(int ba2 = 0; ba2 < k; ++ba2){
	if(ba2 == ba)
	  continue;
	bool ok2 = false;
	for(auto ff: es[ba2]){
	  if(ff == f)
	    ok2 = true;
	}
	for(auto ff: ss[ba2]){
	  if(f-ff >= 0 && (f-ff)%lam[ba2] == 0)
	    ok2 = true;
	}
	ok&=ok2;  
      }
      if(ok)
	ans = min(ans, f);
      }
    }
  }
  if(ans == 1LL<<60)
    cout << -1 << endl;
  else
    cout << ans+1 << endl;
  return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: TIME LIMIT EXCEEDED

Test 8

Verdict: TIME LIMIT EXCEEDED

Test 9

Verdict: TIME LIMIT EXCEEDED

Test 10

Verdict: TIME LIMIT EXCEEDED

Test 11

Verdict: TIME LIMIT EXCEEDED

Test 12

Verdict: TIME LIMIT EXCEEDED

Test 13

Verdict: TIME LIMIT EXCEEDED