delete pics to save space

2.116.cpp

@@ -0,0 +1,50 @@
+#include<cstdio>
+#include<cstring>
+#include<algorithm>
+int n,m;
+int a[15][105],dp[15][105],next[15][105],oo=1<<30;
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	while(scanf("%d%d",&m,&n)==2)
+	{
+		for(int i=0;i<m;i++)
+			for(int j=0;j<n;j++)
+				scanf("%d",&a[i][j]);
+		int ans=oo,first=0;
+		for(int j=n-1;j>=0;j--)
+			for(int i=0;i<m;i++)
+			{
+				if(j==n-1) dp[i][j]=a[i][j];
+				else
+				{
+					int rows[3]={i,i-1,i+1};
+					if(i==0) rows[1]=m-1;
+					if(i==m-1) rows[2]=0;
+					std::sort(rows,rows+3);
+					dp[i][j]=oo;
+					for(int k=0;k<3;k++)
+					{
+						int v=dp[rows[k]][j+1]+a[i][j];
+						if(v<dp[i][j])
+						{
+							dp[i][j]=v;
+							next[i][j]=rows[k];
+						}
+					}
+				}
+				if(j==0&&dp[i][j]<ans)
+				{
+					ans=dp[i][j];
+					first=i;
+				}
+			}
+		printf("%d",first+1);
+		for(int i=next[first][0],j=1;j<n;i=next[i][j],j++)
+			printf(" %d",i+1);
+		printf("\n%d\n",ans);
+	}
+	return 0;
+}