//Krzysztof Boryczka #pragma GCC optimize "O3" #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; typedef pair<int, int> ii; typedef vector<int> vi; typedef vector<ii> vii; const int inf=0x3f3f3f3f; const ll INF=0x3f3f3f3f3f3f3f3f; #define FOR(i, b, e) for(int i=b; i<=e; i++) #define FORD(i, b, e) for(int i=b; i>=e; i--) #define SIZE(x) ((int)x.size()) #define pb push_back #define st first #define nd second #define sp ' ' #define ent '\n' const int N=25e6+5; int n, m, akt; int t[N], vis[N]; queue<ii> q; vii upd; int id(int a, int b){ return a*m+b; } bool in(int a, int b){ return 0<=a && a<n && 0<=b && b<m; } void dodaj(int a, int b){ if(in(a, b) && vis[id(a, b)]<akt){ vis[id(a, b)]=akt; q.push({a, b}); } } bool block(int a, int b){ akt++; upd.clear(); upd.pb({id(a, b), t[id(a, b)]}); t[id(a, b)]=0; dodaj(a+1, b); dodaj(a, b+1); while(!q.empty()){ auto v=q.front(); q.pop(); int spos=(in(v.st-1, v.nd) && t[id(v.st-1, v.nd)]>0)+(in(v.st, v.nd-1) && t[id(v.st, v.nd-1)]>0); if(spos<t[id(v.st, v.nd)]){ upd.pb({id(v.st, v.nd), t[id(v.st, v.nd)]}); t[id(v.st, v.nd)]=spos; dodaj(v.st+1, v.nd); dodaj(v.st, v.nd+1); } } if(t[id(n-1, m-1)]==0){ for(auto &x: upd) t[x.st]=x.nd; return 1; } return 0; } void solve(){ int k, a, b, c, last=0; cin>>n>>m>>k; FOR(i, 1, n) FOR(j, 1, m) t[id(i-1, j-1)]=2-(i==1 || j==1); FOR(i, 1, k){ cin>>a>>b>>c; a=(a^last)%n; b=(b^last)%m; if(block(a, b)){ cout<<"TAK\n"; last^=c; } else cout<<"NIE\n"; } } int main(){ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); // int tt; cin>>tt; // FOR(te, 1, tt) 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 91 92 93 | //Krzysztof Boryczka #pragma GCC optimize "O3" #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; typedef pair<int, int> ii; typedef vector<int> vi; typedef vector<ii> vii; const int inf=0x3f3f3f3f; const ll INF=0x3f3f3f3f3f3f3f3f; #define FOR(i, b, e) for(int i=b; i<=e; i++) #define FORD(i, b, e) for(int i=b; i>=e; i--) #define SIZE(x) ((int)x.size()) #define pb push_back #define st first #define nd second #define sp ' ' #define ent '\n' const int N=25e6+5; int n, m, akt; int t[N], vis[N]; queue<ii> q; vii upd; int id(int a, int b){ return a*m+b; } bool in(int a, int b){ return 0<=a && a<n && 0<=b && b<m; } void dodaj(int a, int b){ if(in(a, b) && vis[id(a, b)]<akt){ vis[id(a, b)]=akt; q.push({a, b}); } } bool block(int a, int b){ akt++; upd.clear(); upd.pb({id(a, b), t[id(a, b)]}); t[id(a, b)]=0; dodaj(a+1, b); dodaj(a, b+1); while(!q.empty()){ auto v=q.front(); q.pop(); int spos=(in(v.st-1, v.nd) && t[id(v.st-1, v.nd)]>0)+(in(v.st, v.nd-1) && t[id(v.st, v.nd-1)]>0); if(spos<t[id(v.st, v.nd)]){ upd.pb({id(v.st, v.nd), t[id(v.st, v.nd)]}); t[id(v.st, v.nd)]=spos; dodaj(v.st+1, v.nd); dodaj(v.st, v.nd+1); } } if(t[id(n-1, m-1)]==0){ for(auto &x: upd) t[x.st]=x.nd; return 1; } return 0; } void solve(){ int k, a, b, c, last=0; cin>>n>>m>>k; FOR(i, 1, n) FOR(j, 1, m) t[id(i-1, j-1)]=2-(i==1 || j==1); FOR(i, 1, k){ cin>>a>>b>>c; a=(a^last)%n; b=(b^last)%m; if(block(a, b)){ cout<<"TAK\n"; last^=c; } else cout<<"NIE\n"; } } int main(){ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); // int tt; cin>>tt; // FOR(te, 1, tt) solve(); return 0; } |