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Re:贴代码,还是挺水的In Reply To:贴代码,还是挺水的 Posted by:ACMore_txj at 2014-04-03 16:13:47 > #include<cstdio>
> #include<iostream>
> using namespace std;
> int a[1005],dp[10005][35];//dp[i][j],i分钟时用了j次移动后得到的苹果数目
> int main()
> {
> int i,j,n,m,t,Max = 0;
> scanf("%d %d",&n,&m);
> for(i = 1;i <= n;i ++)
> scanf("%d",&a[i]);
> for(i = 1;i <= n;i ++)
> {
> dp[i][0] = dp[i-1][0] + 2 - a[i];//只要是移动0次,则一定在苹果树1的位置
> for(j = 1;j <= m;j ++)//若j为奇数则在苹果树2位置,否则在1位置
> {
> /*之所以现在移动步数为j,是从j-1步移动过来的,或者是和上一步一样没有动*/
> if(j % 2)
> dp[i][j] = max(dp[i-1][j-1],dp[i-1][j]) + a[i] - 1;
> else
> dp[i][j] = max(dp[i-1][j-1],dp[i-1][j]) + 2 - a[i];
> }
> }
> for(i = 0;i <= m;i ++)
> Max = max(Max,dp[n][i]);
> printf("%d\n",Max);
> return 0;
> }
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