Online Judge | Problem Set | Authors | Online Contests | User | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest |
DP结果要比贪心靠谱多了#include<iostream> #include<cstdio> #include<cstring> #include<algorithm> using namespace std; int cmp(int x,int y) { return x<y; } int a[10010]; int b[10010]; int n; int dp[1010][1010]; void gan() { int k=0; for(int i=1;i<=n;i++) { dp[i][0]=-i; if(a[i]>=b[k+1]) { k++; } for(int j=1;j<=k;j++) { if(a[i]>b[j]) { dp[i][j]=dp[i-1][j-1]+1; } else if(a[i]<b[j]) { dp[i][j]=dp[i-1][j]-1; } else { dp[i][j]=max(dp[i-1][j]-1,dp[i-1][j-1]); } } } int m=dp[n][0]; for(int i=1;i<=k;i++) { m=max(m,dp[n][i]); } printf("%d\n",m*200); } int main() { while(~scanf("%d",&n)&&n!=0) { for(int i=1;i<=n;i++) { scanf("%d",&a[i]); } for(int i=1;i<=n;i++) { scanf("%d",&b[i]); } sort(a+1,a+1+n,cmp); sort(b+1,b+1+n,cmp); memset(dp,0,sizeof(dp)); gan(); } } Followed by: Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator