delete pics to save space

1.4573.cpp

@@ -0,0 +1,46 @@
+#include<iostream>
+#include<cstdlib>
+using namespace std;
+const int idx[6]={1,2,4,5,7,8};
+char ch;
+int mp[9][9],hav_r[9][10],hav_c[9][10],hav_bx[3][3][10];
+int btl[9][9],btu[9][9];
+inline int dcmp(int x) { return x>0?1:-1; }
+void dfs(int r,int c)
+{
+	if(c==9) { dfs(r+1,0); return; }
+	if(r==9)
+	{
+		for(int i=0;i<9;i++)
+		{
+			for(int j=0;j<9;j++) printf("%d ",mp[i][j]);
+			printf("\n");
+		}
+		exit(0);
+	}
+	for(int i=1;i<=9;i++)
+		if(!hav_r[r][i]&&!hav_c[c][i]&&!hav_bx[r/3][c/3][i]&&(!btl[r][c]||dcmp(i-mp[r][c-1])==btl[r][c])&&(!btu[r][c]||dcmp(i-mp[r-1][c])==btu[r][c]))
+		{
+			mp[r][c]=i;
+			hav_r[r][i]=hav_c[c][i]=hav_bx[r/3][c/3][i]=true;
+			dfs(r,c+1);
+			mp[r][c]=0;
+			hav_r[r][i]=hav_c[c][i]=hav_bx[r/3][c/3][i]=false;
+		}
+}
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	for(int r=0;r<3;r++)
+	{
+		for(int i=0;i<6;i++) { cin>>ch; btl[r*3+0][idx[i]]=(ch=='<'?1:-1); }
+		for(int i=0;i<9;i++) { cin>>ch; btu[r*3+1][i]=(ch=='^'?1:-1); }
+		for(int i=0;i<6;i++) { cin>>ch; btl[r*3+1][idx[i]]=(ch=='<'?1:-1); }
+		for(int i=0;i<9;i++) { cin>>ch; btu[r*3+2][i]=(ch=='^'?1:-1); }
+		for(int i=0;i<6;i++) { cin>>ch; btl[r*3+2][idx[i]]=(ch=='<'?1:-1); } 
+	}
+	dfs(0,0);
+	return 0;
+}