#include using namespace std; #define rep(i,n) for(ll i=0;i=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define pb push_back #define ins insert #define pqueue(x) priority_queue,greater> #define all(x) (x).begin(),(x).end() #define CST(x) cout<> #define rev(x) reverse(x); using ll=long long; using vl=vector; using vvl=vector>; using pl=pair; using vpl=vector; using vvpl=vector; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=1e9+10; const ll INF=4e18; const ll dy[9]={0,1,-1,0,1,1,-1,-1,0}; const ll dx[9]={1,0,0,-1,1,-1,1,-1,0}; template inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } struct UnionFind { vector par; vector edge; vector color; vector> link; UnionFind(int n) : par(n, -1),edge(n, 0),color(n,0), link(n){} int root(int x) { if (par[x] < 0) return x; else return par[x] = root(par[x]); } bool same(int x, int y) { return root(x) == root(y); } bool merge(int x, int y) { x = root(x); y = root(y); if (x == y) { edge[x]++; return false; } if (par[x] > par[y]) swap(x, y); par[x] += par[y]; par[y] = x; edge[x] += edge[y]+1; if(link[x].size() getlink(int x){ return link[root(x)]; } void eraselink(int x){ link[root(x)].clear(); } }; int main(){ ll h,w;cin >> h >> w; UnionFind uf(h*w); rep(i,h)rep(j,w){ ll p;cin >> p; uf.setcolor(i*w+j,p); } rep(i,h)rep(j,w){ rep(k,4){ ll nx=i+dx[k],ny=j+dy[k]; if(nx<0||ny<0||nx>=h||ny>=w)continue; ll now=i*w+j;ll next=nx*w+ny; if(uf.get(now)==uf.get(next))uf.merge(now,next); else{ uf.setlink(now,next); uf.setlink(next,now); } } } ll q;cin >> q; while(q--){ ll x,y,t;cin >> x >> y >> t;x--;y--; ll now=x*w+y; if(uf.get(now)==t)continue; uf.setcolor(now,t); auto st=uf.getlink(now); uf.eraselink(now); for(auto to:st){ uf.merge(x*w+y,to); } } rep(i,h){ rep(j,w){ cout << uf.get(i*w+j) <<" "; } cout << endl; } }