Submission #1303816

#	Time	Username	Problem	Language	Result	Execution time	Memory
1303816		peanut	은행 (IZhO14_bank)	C++20	100 / 100	95 ms	8648 KiB

bank

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<ll, ll>;
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define mp make_pair
int dx[] = {0, 0, 1, -1};
int dy[] = {1, -1, 0, 0};
template<class X, class Y> bool maximize (X &x, const Y &y) {return x < y ? x = y, 1 : 0;}
template<class X, class Y> bool minimize (X &x, const Y &y) {return x > y ? x = y, 1 : 0;}
const int maxn = 1e5 + 5;
const int MOD = 1e9 + 7;
const int INF = 0x3f3f3f3f;

int n, m;
int salary[20], notes[20];
pair<int, int> dp[1 << 20];
int main()
{
    ios::sync_with_stdio(false); cin.tie(0);
    //freopen(".INP", "r", stdin);
    //freopen(".OUT", "w", stdout);
    cin >> n >> m;
    for (int i = 0; i < n; ++i) cin >> salary[i];
    for (int i = 0; i < m; ++i) cin >> notes[i];

    for (int i = 0; i < (1 << m); ++i) dp[i] = {-1, -1};
    dp[0] = {0, 0};
    for (int i = 0; i < (1 << m); ++i) {
        for (int j = 0; j < m; ++j) {
            if (i >> j & 1) {
                pair<int, int> t = dp[i^(1<<j)];
                if (t.fi == -1) continue;
                if (notes[j] + t.se == salary[t.fi]) {
                    dp[i] = {t.fi + 1, 0};
                }
                else if (notes[j] + t.se < salary[t.fi]) {
                    dp[i] = {t.fi, t.se + notes[j]};
                }
            }
        }
        if (dp[i].fi == n) {
            cout << "YES";
            return 0;
        }
    }
    cout << "NO";
    return 0;
}

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