Submission #718763

#	Time	Username	Problem	Language	Result	Execution time	Memory
718763		sysia	Bank (IZhO14_bank)	C++17	100 / 100	114 ms	16836 KiB

bank

//Sylwia Sapkowska
#include <bits/stdc++.h>
using namespace std;

void __print(int x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ", "; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? ", " : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif

#define int long long
typedef pair<int, int> T;
const int oo = 1e18, oo2 = 1e9+7, K = 30;

void solve(){
	int n, m; cin >> n >> m;
	vector<T>dp ((1<<m), {-oo, -oo});
	dp[0] = T{0, 0};
	vector<int>a(n), b(m);
	for (int i = 0; i<n; i++) cin >> a[i];
	for (int i = 0; i<m; i++) cin >> b[i];
	
	for (int mask = 1; mask < (1<<m); mask++){
		for (int i = 0; i<m; i++){
			if (mask&(1<<i)){
				if (dp[mask^(1<<i)].second + b[i] == a[dp[mask^(1<<i)].first]){
					dp[mask] = max(dp[mask], T{dp[mask^(1<<i)].first+1, 0});
				} else {
					dp[mask] = max(dp[mask], T{dp[mask^(1<<i)].first, dp[mask^(1<<i)].second + b[i]});
				}		
			}
		}
        if (dp[mask].first == n) {
            cout << "YES\n";
            return;
        }
	}
    cout << "NO\n";
}

int32_t main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	solve();
	
	return 0;
}

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