제출 #362743

#제출 시각아이디문제언어결과실행 시간메모리
362743sumit_kk10은행 (IZhO14_bank)C++14
100 / 100
766 ms202348 KiB
#include<bits/stdc++.h>
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
using namespace std;
const int MOD = 1e9 + 7;
const int N = 1e6 + 2;
vector<long long int> pos[N];
int n, m, a[N], b[N];
bool vis[N];
long long dp[20][(1LL << 20) + 1];

bool go(int i, long long mask){
	if(i == n)
		return true;
	if(dp[i][mask] != -1)
		return dp[i][mask];
	bool ans = false;
	for(auto k : pos[a[i]]){
		if((mask & k) != 0) 
			continue;
		ans = (ans | go(i + 1, (mask | k)));
	}
	return dp[i][mask] = ans;
}

void solve() {
	memset(dp, -1, sizeof dp);
    cin >> n >> m;
    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 < (1LL << m); ++mask){
		long long sum = 0;
		for(int j = 0; j < m; ++j)
			if(mask & (1LL << j))
				sum += b[j];
		pos[sum].push_back(mask);
	}
   	cout << (go(0, 0) ? "YES\n" : "NO\n");
}

int main() {
    fast;
    int t = 1;
    // cin >> t;
    while(t--)
        solve();
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'bool go(int, long long int)':
bank.cpp:22:21: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   22 |  return dp[i][mask] = ans;
      |         ~~~~~~~~~~~~^~~~~
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