#include <iostream>
#include <queue>
using namespace std;
bool mapa [10000+5][10000+5];
int odl [10000+5][10000+5];
queue < pair <pair<int, int> , int> > Q;
int options[4][2] = {{1,0}, {-1,0}, {0,1}, {0,-1}};
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m, k;
cin>>n>>m>>k;
int x = 0;
int r, c, z;
bool B, ok;
int top_x, top_y, top_dist, sas_x, sas_y;
for(int t=1; t<=k; t++)
{
cin>>r>>c>>z;
r = int(r ^ x);
c = int(c ^ x);
r%=n;
c%=m;
for(int i=0; i<=(n+1); i++)
for(int j=0; j<=(m+1); j++)
odl[i][j] = -1;
r++;
c++;
mapa[r][c] = 1;
while(!Q.empty())
Q.pop();
Q.push(make_pair(make_pair(1,1), 0));
odl[1][1] = 0;
B = 0;
ok = 0;
while(!Q.empty() && !B)
{
top_x = Q.front().first.first;
top_y = Q.front().first.second;
top_dist = Q.front().second;
Q.pop();
for(int i=0; i<4; i++)
{
sas_x = top_x+options[i][0];
sas_y = top_y+options[i][1];
if(mapa[sas_x][sas_y] == 0)
if(odl[sas_x][sas_y] == (-1))
if(sas_x>0 && sas_x<=n && sas_y>0 && sas_y<=m)
{
odl[sas_x][sas_y] = top_dist+1;
Q.push(make_pair(make_pair(sas_x,sas_y), top_dist+1));
if(sas_x == n && sas_y == m)
{
B=1;
if((top_dist+1) == (n+m-2))
ok=1;
else
ok=0;
}
}
}
}
if(ok)
cout<<"NIE"<<'\n';
else
{
mapa[r][c] = 0;
cout<<"TAK"<<'\n';
x = int(x^z);
}
}
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 | #include <iostream> #include <queue> using namespace std; bool mapa [10000+5][10000+5]; int odl [10000+5][10000+5]; queue < pair <pair<int, int> , int> > Q; int options[4][2] = {{1,0}, {-1,0}, {0,1}, {0,-1}}; int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n, m, k; cin>>n>>m>>k; int x = 0; int r, c, z; bool B, ok; int top_x, top_y, top_dist, sas_x, sas_y; for(int t=1; t<=k; t++) { cin>>r>>c>>z; r = int(r ^ x); c = int(c ^ x); r%=n; c%=m; for(int i=0; i<=(n+1); i++) for(int j=0; j<=(m+1); j++) odl[i][j] = -1; r++; c++; mapa[r][c] = 1; while(!Q.empty()) Q.pop(); Q.push(make_pair(make_pair(1,1), 0)); odl[1][1] = 0; B = 0; ok = 0; while(!Q.empty() && !B) { top_x = Q.front().first.first; top_y = Q.front().first.second; top_dist = Q.front().second; Q.pop(); for(int i=0; i<4; i++) { sas_x = top_x+options[i][0]; sas_y = top_y+options[i][1]; if(mapa[sas_x][sas_y] == 0) if(odl[sas_x][sas_y] == (-1)) if(sas_x>0 && sas_x<=n && sas_y>0 && sas_y<=m) { odl[sas_x][sas_y] = top_dist+1; Q.push(make_pair(make_pair(sas_x,sas_y), top_dist+1)); if(sas_x == n && sas_y == m) { B=1; if((top_dist+1) == (n+m-2)) ok=1; else ok=0; } } } } if(ok) cout<<"NIE"<<'\n'; else { mapa[r][c] = 0; cout<<"TAK"<<'\n'; x = int(x^z); } } return 0; } |
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