Submission #607083

#	Time	Username	Problem	Language	Result	Execution time	Memory
607083		lam	Bank (IZhO14_bank)	C++14	100 / 100	115 ms	16732 KiB

bank

#include <iostream>
#include <cmath>
#include <vector>
#include <map>
#include <set>
#include <algorithm>
#define int long long
#define ff first
#define ss second
#define taskname ""
#define maxn 20
using namespace std;
int dp[(1<<20)],d[1<<20];
int a[20],b[20];
int n,m;
bool checkbit(int i, int j)
{
    return i>>j&1;
}
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
//    freopen(taskname".in","r",stdin);
//    freopen(taskname".out","w",stdout);
    cin>>n>>m;
    for (int i=0; i<n; i++) cin>>a[i];
    for (int j=0; j<m; j++) cin>>b[j];
    for (int i=0; i<(1<<m); i++) dp[i]=d[i]=-1;
    dp[0]=d[0]=0;
    for (int i=1; i<(1<<m); i++)
    {
        for (int j=0; j<m; j++)
        {
            if (!checkbit(i,j)) continue;
            int i2=i^(1<<j);
            if (d[i2]==-1) continue;
            int val=b[j]+d[i2];
            int x=a[dp[i2]];
            if (val<x)
            {
                    dp[i]=dp[i2];
                    d[i]=val;
            }
            else
                if (val==x)
            {
                dp[i]=dp[i2]+1;
                d[i]=0;
            }
        }
        if (dp[i]==n)
        {
            cout<<"YES";
            return 0;
        }
    }
    cout<<"NO";
}

• Subtask 1: 19 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 29 / 29