제출 #1013246

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1013246		vjudge1	Bank (IZhO14_bank)	C++17	100 / 100	753 ms	3416 KiB

bank

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using pl = pair<ll, ll>;
using tl = tuple<ll, ll, ll>;
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define sz(x) ll(x.size())
#define pb emplace_back
#define F first
#define S second
const ll inf = 1e17;
const ll mod = 1e9 + 7;
const ll N = 1e5*5+10;
const ll K = 300;

inline ll add(ll a, ll b){
    if(a + b >= mod)
        return a + b - mod;
    return a + b;
}

void solve() {
    ll n, m;
    cin >> n >> m;
    vector<ll> a(n), b(m);
    for(auto &i : a)
        cin >> i;
    for(auto &i : b)
        cin >> i;
    vector<vector<bool>> dp(n+1, vector<bool> (1<<m));
    ll pr = 0;
    dp[0][0]=1;
    bool yes = 0;
    for(ll i = 0; i < n; i++){
        pr += a[i];
        for(ll mask = 0; mask < (1<<m); mask++){
            if(dp[i][mask] == 0)continue;
            ll sum = 0;
            for(ll j = 0; j < m; j++)
                sum+=((mask>>j)&1)*b[j];
            if(sum == pr)
                dp[i+1][mask] = 1, yes|=(i == n-1);
            for(ll j = 0; j < m; j++){
                if((mask>>j)&1)continue;
                ll to = (mask|(1<<j));
                dp[i][to] = 1;
            }
        }
    }
    cout << (yes ? "YES" : "NO") ;
}



int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    ll t = 1, i=1;
    //cin >> t;
    while (t--) {
        //cout << "Case " << i++ << ":\n";
        solve();
    }
}

컴파일 시 표준 에러 (stderr) 메시지

bank.cpp: In function 'int main()':
bank.cpp:59:15: warning: unused variable 'i' [-Wunused-variable]
   59 |     ll t = 1, i=1;
      |               ^

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