Submission #703557

#	Time	Username	Problem	Language	Result	Execution time	Memory
703557		gagik_2007	Bank (IZhO14_bank)	C++17	100 / 100	132 ms	16844 KiB

bank

#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <cmath>
#include <chrono>
#include <ctime>
#include <set>
#include <map>
#include <stack>
#include <queue>
#include <deque>
#include <limits>
#include <iomanip>
#include <unordered_set>
#include <unordered_map>
#include <fstream>
#include <functional>
#include <random>
#include <cassert>
using namespace std;

typedef long long ll;
typedef long double ld;

#define ff first
#define ss second

ll ttt;
const ll INF = 1e18;
const ll MOD = 1e9 + 7;
const ll N = 21;
const ll LG = 18;
ll n, m, k;
pair<ll, ll> dp[1 << N];
ll a[N];
ll b[N];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    for (int i = 0; i < m; i++) {
        cin >> b[i];
    }
    if (n > m) {
        cout << "NO\n";
        return 0;
    }
    for (int msk = 1; msk < (1 << m); msk++) {
        for (int i = 0; i < m; i++) {
            if (msk & (1 << i)) {
                ll vl = dp[msk ^ (1 << i)].ss + b[i];
                ll ind = dp[msk ^ (1 << i)].ff;
                if (ind == n) {
                    dp[msk] = { ind,vl };
                }
                else if (vl == a[ind]) {
                    dp[msk] = max(dp[msk], make_pair(ind + 1, 0ll));
                }
                else if (vl < a[ind]) {
                    dp[msk] = max(dp[msk], make_pair(ind, vl));
                }
            }
        }
    }
    if (dp[(1 << m) - 1].ff == n) {
        cout << "YES\n";
    }
    else cout << "NO\n";
    return 0;
}

/// ---- - --------  ------ -------- -- - - -
/// Just a reminder. Ubuntu password is I O I
/// ---- - --------  ------ -------- -- - - -

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