Submission #870892

#	Time	Username	Problem	Language	Result	Execution time	Memory
870892		sleepntsheep	Bank (IZhO14_bank)	C++17	100 / 100	84 ms	8792 KiB

bank

#include <iostream>
#include <cstring>
#include <vector>
#include <algorithm>
#include <deque>
#include <set>
#include <utility>
#include <array>

using namespace std;
#define ALL(x) x.begin(), x.end()
#define ShinLena cin.tie(nullptr)->sync_with_stdio(false);
using i64 = long long;

int n, m, a[21], b[20], dp[1<<20][2];

#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx2,tune=native")

int main()
{
    ShinLena;
    cin >> n >> m;
    memset(dp, 0x86, sizeof dp);
    for (int i = 1; i <= n; ++i) cin >> a[i];
    for (int i = 0; i < m; ++i) cin >> b[i];
    dp[0][0] = 0; dp[0][1] = 0;

    for (int j = 0; j < (1 << m); ++j)
    {
        for (int k = 0; k < m; ++k)
        {
            if (j & (1 << k))
            {
                int p = j&~(1<<k);
                if (dp[p][0] >= 0)
                {
                    int l = dp[p][1];
                    int t[2] = {dp[p][0] + b[k], l};
                    if (l < n && t[0] == a[l+1]) ++t[1], t[0] = 0;
                    if (t[1] > dp[j][1])
                        dp[j][0] = t[0], dp[j][1] = t[1];
                }
            }
        }
    }

    
    cout << &"YES\0NO"[4-(4*(dp[(1<<m)-1][1] == n))];
    return 0;
}

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