【DP】 HDU 5115 Dire Wolf 区间DP

#include <cstdio> #include <cstring> #include <cstdlib> #include <string> #include <iostream> #include <algorithm> #include <sstream> #include <cmath> using namespace std; #include <queue> #include <stack> #include <set> #include <vector> #include <deque> #include <map> #define cler(arr,val) memset(arr,val,sizeof(arr)) #pragma comment(linker,"/STACK:102400000,102400000") typedef long long LL; const int MAXN = 230+1; const int MAXM = 140000; const int INF = 0x3f3f3f3f; const int mod = 1000000007; int a[3000],b[3000]; int dp[300][300]; int dfs(int l,int r) { if(l+1>=r) return 0; if(dp[l][r]!=⑴) return dp[l][r]; dp[l][r]=INF; for(int i=l+1;i<r;i++) { dp[l][r]=min(dp[l][r],dfs(l,i)+dfs(i,r)+a[i]+b[l]+b[r]); } return dp[l][r]; } int main() { #ifndef ONLINE_JUDGE freopen("in.txt","r",stdin); // freopen("out.txt","w",stdout); #endif int t,n,cas=1; cin>>t; while(t--) { cin>>n; cler(dp,⑴); a[0]=b[0]=a[n+1]=b[n+1]=0; for(int i=1;i<=n;i++) scanf("%d",&a[i]); for(int i=1;i<=n;i++) scanf("%d",&b[i]); printf("Case #%d: %d ",cas++,dfs(0,n+1)); } return 0; }