Submission #892835

#	Time	Username	Problem	Language	Result	Execution time	Memory
892835		LinhLewLew	Bank (IZhO14_bank)	C++17	100 / 100	102 ms	8972 KiB

bank

// PhuThuyRuntime <3
// A secret makes a woman woman

#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define fo(i, l, r) for(int i = l; i <= r; i++)
#define foi(i, l, r) for(int i = l; i >= r; i--)
#define elif else if
#define el cout << "\n";
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define pil pair<int, ll>
#define fi first
#define se second
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#define ll long long
#define ull unsigned long long
#define pob pop_back
#define bs binary_search
#define vi vector<int>
#define vii vector<pair<int, int>>
#define getbit(i, j) (i >> j) & 1
#define offbit(i, j) (1 << j) ^ i
#define onbit(i, j) (1 << j) | i
const int N = 1e5 + 2;
const ll mod = 1e9 + 7;
const int inf = INT_MAX;
const int base = 31;
const long double EPS = 1e-9;
const long double pi = acos(-1.0);
int n, m, a[N], b[N];
void inp(){
     cin >> n >> m;
     fo(i, 1, n) cin >> a[i - 1];
     fo(i, 1, m) cin >> b[i - 1];
}
pii dp[1 << 20];
void sol(){
     fo(mask, 1, (1 << m) - 1){
          fo(i, 0, m - 1){
               if(getbit(mask, i)){
                    auto it = dp[offbit(mask, i)];
                    if(it.se + b[i] == a[it.fi]){
                         it.fi++;
                         it.se = 0;
                    }
                    else it.se += b[i];
                    if(it.fi == n){
                         cout << "YES\n";
                         return;
                    }
                    dp[mask] = max(dp[mask], it);
               }
          }
     }
     cout << "NO";
}
int main(){
     ios_base::sync_with_stdio(false);
     cin.tie(NULL);
     inp();
     sol();
     return 0;
}

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