LCT男人八题系列

楼教的男人八题名气甚大,今天做了一道感觉还是涨了不少姿势的,然而估计之后的每道题都要看题解吧,姑且先记录一下。以后再做再更

1737 Connected Graph 1100 LouTiancheng@POJ
1738 An old Stone Game 407 LouTiancheng@POJ
1739 Tony's Tour 671 LouTiancheng@POJ
1740 A New Stone Game 2240 LouTiancheng@POJ
1741 Tree 1728 LouTiancheng@POJ
1742 Coins 4309 LouTiancheng@POJ
1743 Musical Theme 2687 LouTiancheng@POJ
1744 Elevator Stopping Plan 469 LouTiancheng@POJ

所谓男人八题就是以上八道了,我做的是最简单的一道,1742,dp,这题不把数组写成一维会mle,代码记录如下:

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cstring>
using namespace std;
const int maxv=1e5+30;
int n,m;
int dp[maxv];
int a[104],c[105];
int main(){
    //freopen("in","r",stdin);
    while(cin>>n>>m){
        if(n==0&&m==0) break;
        for(int i=1;i<=n;i++) scanf("%d",&a[i]);
        for(int i=1;i<=n;i++) scanf("%d",&c[i]);
        memset(dp,-1,sizeof dp);
        dp[0]=0;
        for(int i=1;i<=n;i++){
            for(int j=0;j<=m;j++){
                if(dp[j]>=0) dp[j]=c[i];
                else if(j-a[i]<0||dp[j-a[i]]<0) dp[j]=-1;
                else dp[j]=dp[j-a[i]]-1;
            }
        }
        int ans=0;
        for(int i=1;i<=m;i++){
            if(dp[i]>=0) ans++;
        }
        cout<<ans<<endl;
    }
    return 0;
}
原文地址:https://www.cnblogs.com/Cw-trip/p/4464193.html