Submission #1105300

#	Time	Username	Problem	Language	Result	Execution time	Memory
1105300		khoile25108	Bank (IZhO14_bank)	C++14	100 / 100	86 ms	8696 KiB

bank

#include <bits/stdc++.h>
using namespace std;
#define faster ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define FOR(i,a,b) for(int i = a; i <= b; i++)
#define FOD(i,a,b) for(int i = a; i >= b; i--)
#define fi first
#define se second
#define pb push_back
#define ll long long
#define ull unsigned long long
#define lcm(a,b) (a*b)/__gcd(a,b)
#define ii pair<int,int>
#define iii pair<int,pair<int,int>>
#define iv pair<pair<int,int>,pair<int,int>>

const int inf = 1e9;
const ll INF = 1e18;
const int mod = 1e9 + 7;
const int N = 20;

const int dx[] = {-1,0,1,0};
const int dy[] = {0,1,0,-1};
const int dxx[] = {-1,-1,0,1,1,1,0,-1};
const int dyy[] = {0,1,1,1,0,-1,-1,-1};

int n, m;
ii dp[(1 << N) + 105];
int a[N], b[N];

void solve()
{
    for(int mask = 0; mask < (1 << m); mask++)
        dp[mask] = {-1,-1};
    dp[0] = {0,0};
    for(int mask = 0; mask < (1 << m); mask++)
    {
        for(int i = 0; i < m; i++)
        {
            if((mask >> i) & 1 && dp[mask^(1<<i)].fi != -1)
            {
                int submask = mask ^ (1 << i);
                int cur = dp[submask].se + b[i];
                int tar = a[dp[submask].fi];
                if(tar > cur)
                    dp[mask] = {dp[submask].fi, cur};
                else if(tar == cur)
                    dp[mask] = {dp[submask].fi + 1, 0};
            }
        }
        if(dp[mask].fi == n)
        {
            cout << "YES\n";
            return;
        }
    }
    cout << "NO\n";
}

void input()
{
    //freopen("TEST.INP", "r", stdin);
    //freopen("TEST.OUT", "w", stdout);
    cin >> n >> m;
    for(int i = 0; i < n; i++)
        cin >> a[i];
    for(int i = 0; i < m; i++)
        cin >> b[i];
}

signed main()
{
    faster
    input();
    solve();
}

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