Submission #852638

#	Time	Username	Problem	Language	Result	Execution time	Memory
852638		btkhg	Bank (IZhO14_bank)	C++14	100 / 100	158 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:27:10: 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