Submission #935956

#	Time	Username	Problem	Language	Result	Execution time	Memory
935956		Youssif_Elkadi	Bank (IZhO14_bank)	C++17	0 / 100	2 ms	348 KiB

bank

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N = 1e3 + 5, inf = 1e9, mod = 1e9 + 7;
int n, m;
int dp[25][(1 << 22)];
vector<int> musks[N];
int main()
{
    ios_base::sync_with_stdio(0), cin.tie(NULL), cout.tie(NULL);
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    cin >> n >> m;
    vector<int> people(n), cash(m);
    for (int i = 0; i < n; i++)
        cin >> people[i];
    for (int i = 0; i < m; i++)
        cin >> cash[i];
    for (int i = 0; i < (1 << m); i++)
    {
        int sum = 0;
        for (int j = 0; j < m; j++)
            if (i & (1 << j))
                sum += cash[j];
        if (sum <= 1000)
            musks[sum].push_back(i);
        dp[n][i] = 1;
    }
    for (int i = n - 1; i >= 0; i--)
        for (int j = 0; j < (1 << m); j++)
            for (auto &v : musks[people[i]])
                if ((j & v) == 0)
                    dp[i][j] |= dp[i + 1][(j | v)];
    for (int i = 0; i < (1 << m); i++)
        if (dp[0][i])
            return cout << "YES\n", 0;
    cout << "NO\n";
}
/*
YES
*/

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:11:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
bank.cpp:12:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29