2008年11月23日星期日

Vijos 1428 贪婪格尔曼 解题报告

由于每类饼干最多只能买一次，所以可以转化为0/1背包模型。用f[i,j]表示让小狗叫i声和大狗叫j声所需要的最小费用，则可得到状态转移方程：f[i,j]=f[i-s[now],j-b[now]]+c[now]+c[now](1<=i<=s,1<=j<=b,1<=now<=n);f[s,b]即为所求。

R1071154 Accepted 100 From IwfWcf P1428    FPC Vijos Dragon 2008-11-19 17:03:55

发帖者 IwfWcf 时间： 17:37:00
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