Submission #961133

#	Time	Username	Problem	Language	Result	Execution time	Memory
961133		Kavelmydex	Bank (IZhO14_bank)	C++17	100 / 100	95 ms	8652 KiB

bank

#include <bits/stdc++.h>
using namespace std;
// #define int long long
#define pi pair<int,int>
#define vi vector<int>
#define rep(i,x,n) for(int i=x; i<n; ++i)
#define For(i,n) rep(i,0,n)
#define endl "\n"
#define sp ' '
#define pb push_back
#define f first
#define s second
#define sz size()
#define all(x) (x).begin(),(x).end()
 
const int N = 20, OO = 2e9, mod = 1e9+7, mx = 1e3+1;
const int dx[]{0,1}, dy[]{1,0};
void tr(int a, int b){cout << a << sp << b << endl;}
void cmx(int &a, int b){a = max(a,b);}
void cmn(int &a, int b){a = min(a,b);}

int dp[1<<N], a[N], b[N];
int sum[1<<N];

int32_t main() {
    ios::sync_with_stdio(0); cin.tie(0); 
    // freopen("talent.in", "r", stdin);
    // freopen("talent.out", "w", stdout);
    int n,m; cin >> n >> m;
    For(i,n) cin >> a[i];
    For(i,m) cin >> b[i];
    memset(dp,-1,sizeof(dp));
    dp[0] = 0;
    for(int msk=1; msk < 1<<m; ++msk){
        For(i,m) if((1<<i)&msk){
            int other = msk-(1<<i);
            if(dp[other]==-1) continue;

            if(sum[other]+b[i] == a[dp[other]]){
                dp[msk] = dp[other]+1;
            }else if(sum[other]+b[i] < a[dp[other]]){
                dp[msk] = dp[other];
                sum[msk] = sum[other]+b[i];
            }
        }
        if(dp[msk]==n){
            cout << "YES" << endl;
            return 0;
        }
    }
    cout << "NO" << endl;
    return 0;
}
/*
Just some notices : 
I believe you can do it !
You've done things that were harder ... 
Stay calm and focused  =)
*/

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