Submission #752577

#	Time	Username	Problem	Language	Result	Execution time	Memory
752577		pemguimn	Bank (IZhO14_bank)	C++14	100 / 100	100 ms	8572 KiB

bank

#include <bits/stdc++.h>
// #define int long long
#define pii pair<int, int>
#define pb push_back
#define gcd __gcd
#define endl "\n"
#define task "hihi"
using namespace std;
const int N = 25, MOD = 1e9 + 7, INF = 2e9 + 5;  
int n, m, a[N], b[N];
pii dp[1 << N];
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen(task".inp", "r", stdin);
    //freopen(task".out", "w", stdout);
    cin >> n >> m;
    a[n] = INF;
    for(int i = 0; i < n; i++) cin >> a[i];
    for(int i = 0; i < m; i++) cin >> b[i];
    for(int mask = 0; mask < (1 << m); mask++) dp[mask] = {-1, INF};
    dp[0] = {0, 0};
    bool check = false;
    for(int mask = 0; mask < (1 << m); mask++){
        if(dp[mask].first == -1) continue;
        for(int i = 0; i < m; i++){
            if(mask & (1 << i)) continue;
            int nxt = dp[mask].first;   
            if(a[nxt] == dp[mask].second + b[i]){
                dp[mask | (1 << i)] = max(dp[mask | (1 << i)], {dp[mask].first + 1, 0});
            } else if(dp[mask].second + b[i] < a[nxt]){
                dp[mask | (1 << i)] = max(dp[mask | (1 << i)], {dp[mask].first, dp[mask].second + b[i]});
            }
        }
        if(dp[mask].first == n) check = true;
    }
    if(check) cout << "YES";
    else cout << "NO";
    return 0;
}

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