Submission #710812

#	Time	Username	Problem	Language	Result	Execution time	Memory
710812		MinaRagy06	Bank (IZhO14_bank)	C++17	100 / 100	680 ms	172776 KiB

bank

#include <bits/stdc++.h>
using namespace std;
#define lesgooo ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
#define endl    '\n'
#define int     long long

int a[25], b[25];

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

bool solve(int lvl, int msk, int rem, int i);
bool solve(int i, int j)
{
    if (i == n) return 1;
    if (~dp[i][j]) return dp[i][j];
    return dp[i][j] = solve(i, j, a[i], 0);
}
bool solve(int lvl, int msk, int rem, int i)
{
    if (i == m)
    {
        if (rem == 0) return solve(lvl+1, msk);
        return 0;
    }
    return ((msk | (1 << i)) != msk && rem-b[i] >= 0? solve(lvl, msk | (1 << i), rem-b[i], i+1): 0) || solve(lvl, msk, rem, i+1);
}
signed main()
{
    lesgooo;
    memset(dp, -1, sizeof dp);
    cin >> n >> m;
    for (int i = 0; i < n; i++) cin >> a[i];
    for (int i = 0; i < m; i++) cin >> b[i];
    sort(b, b+m);
    reverse(b, b+m);
    cout << (solve(0, 0)? "YES" : "NO");
    return 0;
}

Compilation message (stderr)

bank.cpp: In function 'bool solve(long long int, long long int)':
bank.cpp:17:21: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   17 |     return dp[i][j] = solve(i, j, a[i], 0);
      |            ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

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