Submission #963587

#	Time	Username	Problem	Language	Result	Execution time	Memory
963587		maxFedorchuk	Bank (IZhO14_bank)	C++17	100 / 100	156 ms	600 KiB

bank

    #include<bits/stdc++.h>
    using namespace std;
    int a[21],b[21],n,m;
    void dfs(int x,int sum,int state,int k,int num)
    {
        int i;
        if(x>n)
        {
            cout<<"YES";
            exit(0);
        }
        if(sum==0)
        {
            dfs(x+1,a[x+1],state,0,num);
            return;
        }
        for(i=k;i<m;i++)
        {
            if(m-num-1<n-x) break;
            if(state&(1<<i) || sum<b[i]) continue;
            dfs(x,sum-b[i],state+(1<<i),i+1,num+1);
        }
    }
    int main()
    {
        int i;
        scanf("%d %d",&n,&m);
        for(i=1;i<=n;i++) cin>>a[i];
        for(i=0;i<m;i++) cin>>b[i];
        dfs(1,a[1],0,0,0);
        cout<<"NO";
        return 0;
    }

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |         scanf("%d %d",&n,&m);
      |         ~~~~~^~~~~~~~~~~~~~~

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