Submission #717657

#	Time	Username	Problem	Language	Result	Execution time	Memory
717657		Urvuk3	Bank (IZhO14_bank)	C++17	100 / 100	139 ms	8532 KiB

bank

#include <bits/stdc++.h>

using namespace std;

#define ll long long
const int INF=1e9,MOD=1e9+7;
const ll LINF=1e18;
#define fi first
#define se second
#define pii pair<int,int>
#define mid ((l+r)/2)
#define sz(a) (int((a).size()))
#define all(a) a.begin(),a.end()
#define endl "\n"
#define pb push_back

void PRINT(int x) {cerr << x;}
void PRINT(ll x) {cerr << x;}
void PRINT(double x) {cerr << x;}
void PRINT(char x) {cerr << '\'' << x << '\'';}
void PRINT(string x) {cerr << '\"' << x << '\"';}
void PRINT(bool x) {cerr << (x ? "true" : "false");}

template<typename T,typename V>
void PRINT(pair<T,V>& x){
    cerr<<"{";
    PRINT(x.fi);
    cerr<<",";
    PRINT(x.se);
    cerr<<"}";
}
template<typename T>
void PRINT(T &x){
    int id=0;
    cerr<<"{";
    for(auto _i:x){
        cerr<<(id++ ? "," : "");
        PRINT(_i);
    }
    cerr<<"}";
}
void _PRINT(){
    cerr<<"]\n";
}
template<typename Head,typename... Tail>
void _PRINT(Head h,Tail... t){
    PRINT(h);
    if(sizeof...(t)) cerr<<", ";
    _PRINT(t...);
}

#define Debug(x...) cerr<<"["<<#x<<"]=["; _PRINT(x)

void Solve(){
    int N,M; cin>>N>>M;
    vector<int> a(N+1),b(M);
    for(int i=1;i<=N;i++) cin>>a[i];
    for(int i=0;i<M;i++) cin>>b[i];
    vector<int> dp((1<<M),0),left((1<<M),0);
    for(int m=0;m<(1<<M);m++){
        //string sm=""; for(int j=M-1;j>=0;j--) sm.pb('0'+(int)((m&(1<<j))>0));
        //Debug(sm);
        for(int i=0;i<M;i++){
            if(m&(1<<i)){
                int m1=m^(1<<i);
                //string sm1=""; for(int j=M-1;j>=0;j--) sm1.pb('0'+(int)((m1&(1<<j))>0));
                //Debug(sm1);
                int dp_new=dp[m1]+(dp[m1]==N ? 0 : (left[m1]+b[i]==a[dp[m1]+1]));
                if(dp_new>dp[m]){
                    dp[m]=dp_new;
                    if(dp_new==dp[m1]+1) left[m]=0;
                    else left[m]=left[m1]+b[i];
                }
            }
        }
        if(dp[m]==0){
            for(int i=0;i<M;i++){
                if(m&(1<<i)){
                    left[m]+=b[i];
                }
            }
        }
        //Debug(dp[m],left[m]);
        //cerr<<endl;
    }
    cout<<(dp[(1<<M)-1]==N ? "YES" : "NO")<<endl;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int t; t=1;
    //cin>>t;
    while(t--){
        Solve();
    }
    return 0;
}

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