Submission #1303814

#	Time	Username	Problem	Language	Result	Execution time	Memory
1303814		peanut	은행 (IZhO14_bank)	C++20	71 / 100	1096 ms	8552 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];
int sum[1 << 20];
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) {
        for (int j = 0; j < m; ++j) {
            if (i >> j & 1) sum[i] += notes[j];
        }
    }
    memset(dp, -1, sizeof dp);
    dp[0] = 0;
    for (int i = 0; i < (1 << m); ++i) {
        if (dp[i] == -1) continue;
        if (dp[i] == n) {
            cout << "YES\n";
            return 0;
        }
        int comp = (~i) & ((1 << m) - 1);
        for (int j = comp; j; j = (j-1) & comp) {
            if (sum[j] == salary[dp[i]]) maximize(dp[i | j], dp[i] + 1);
        }
    }
    cout << "NO\n";
    return 0;
}

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