dalao求救!

P1417 烹调方案

BIG_CUTE_BUG @ 2022-04-05 14:32:17

蒟蒻太xun

题目

代码

#include<bits/stdc++.h>
#define int long long
using namespace std;
int m,n,dp[100001],ans;
struct node{int a,b,t;}kkk[100001];
bool cmp(node a,node b){a.t*a.b<b.t*b.b;}
signed main()
{
    scanf("%lld%lld",&m,&n);
    for(int i=1;i<=n;i++) scanf("%lld",&kkk[i].a);
    for(int i=1;i<=n;i++) scanf("%lld",&kkk[i].b);
    for(int i=1;i<=n;i++) scanf("%lld",&kkk[i].t);
    sort(kkk+1,kkk+n+1,cmp);
    for(int i=1;i<=n;i++)
        for(int j=m;j>=kkk[i].t;j--)
            dp[j]=max(dp[j],dp[j-kkk[i].t]+kkk[i].a-kkk[i].b*j);
    for(int i=1;i<=m;i++) ans=max(ans,dp[i]);
    printf("%lld\n",ans); 
    return 0;
}

by kzos @ 2022-04-05 14:33:44

您的 cmp 逻辑有点问题


by BIG_CUTE_BUG @ 2022-04-05 14:38:03


by BIG_CUTE_BUG @ 2022-04-05 14:43:02

\color{#52c41a}{AC}


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