UVA 10285(p304)----Longest Run on a Snowboard
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#include<iostream>#include<cstdio>#include<algorithm>#include<string>const int dx[4]={1,-1,0,0};const int dy[4]={0,0,1,-1};using namespace std;int t,r,c,temp,a[105][105],f[110][110];string st;int dfs(int x,int y){ if(f[x][y]!=-1) return f[x][y]; int m=0,temp=0; for(int i=0;i<4;i++) { int xx=x+dx[i],yy=y+dy[i]; if(xx>=0&&xx<=r&&yy>=0&&yy<=c) if((a[xx][yy]<a[x][y])) temp=max(temp,dfs(xx,yy)+1); } f[x][y]=temp; // cout<<x<<" "<<y<<" "<<f[x][y]<<endl; return f[x][y];}void init(){ for(int i=0;i<110;i++) for(int j=0;j<110;j++) f[i][j]=-1;}int main(){ // freopen("in.in","r",stdin); // freopen("out.out","w",stdout); scanf("%d",&t); while(t--) { init(); int ans=0; cin>>st>>r>>c; for(int i=0;i<r;i++) for(int j=0;j<c;j++) scanf("%d",&a[i][j]); for(int i=0;i<r;i++) for(int j=0;j<c;j++) { f[i][j]=dfs(i,j); ans=max(f[i][j],ans); } cout<<st<<": "<<ans+1<<endl; } return 0;}
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- UVA 10285(p304)----Longest Run on a Snowboard
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