Submission #580543

#	Time	Username	Problem	Language	Result	Execution time	Memory
580543		yutabi	Bank (IZhO14_bank)	C++14	44 / 100	1092 ms	468 KiB

bank

#include <bits/stdc++.h>
using namespace std;


#define pb push_back


typedef long long ll;
typedef pair <ll,ll> ii;

int n;
int m;

vector <int> s;
vector <int> x;

bool DP2[1001][1001];

int main()
{
    scanf("%d %d",&n,&m);

    if(n==1){
    
    for(int i=0;i<n;i++)
    {
        int a;

        scanf(" %d",&a);

        s.pb(a);
    }

    for(int i=0;i<m;i++)
    {
        int a;

        scanf(" %d",&a);

        x.pb(a);
    }

    DP2[0][0]=1;

    for(int i=0;i<m;i++)
    {
        for(int j=0;j<1001;j++)
        {
            if(x[i]+j<1001 && DP2[i][j]==1)
            {
                DP2[i+1][x[i]+j]=1;
            }

            if(DP2[i][j])
            {
                DP2[i+1][j]=1;
            }
        }
    }

    if(DP2[m][s[0]])
    {
        printf("YES");
    }

    else
    {
        printf("NO");
    }}

    else{

    bool table[n+1][1<<m];

    bool DP[n+1][1<<m];

    for(int i=0;i<1<<m;i++)
    {
        DP[0][i]=1;

        table[0][i]=0;
    }

    for(int j=1;j<n+1;j++)
    {
        for(int i=0;i<1<<m;i++)
        {
            DP[j][i]=0;

            table[j][i]=0;
        }
    }

    for(int i=0;i<n;i++)
    {
        int a;

        scanf(" %d",&a);

        s.pb(a);
    }

    for(int i=0;i<m;i++)
    {
        int a;

        scanf(" %d",&a);

        x.pb(a);
    }

    for(int i=0;i<1<<m;i++)
    {
        int a=i;

        int sum=0;

        for(int j=0;j<m;j++,a/=2)
        {
            if(a%2)
            {
                sum+=x[j];
            }
        }

        for(int j=0;j<n;j++)
        {
            if(s[j]==sum)
            {
                table[j][i]=1;
            }
        }
    }

    for(int i=0;i<n;i++)
    {
        for(int j=0;j<1<<m;j++)
        {
            for(int k=0;k<1<<m;k++)
            {
                if(((j&k)==0) && DP[i][j] && table[i][k])
                {
                    DP[i+1][j|k]=1;
                }
            }
        }
    }

    if(DP[n][(1<<m)-1]==1)
    {
        printf("YES");
    }

    else
    {
        printf("NO");
    }}
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     scanf("%d %d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~
bank.cpp:29:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |         scanf(" %d",&a);
      |         ~~~~~^~~~~~~~~~
bank.cpp:38:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |         scanf(" %d",&a);
      |         ~~~~~^~~~~~~~~~
bank.cpp:98:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   98 |         scanf(" %d",&a);
      |         ~~~~~^~~~~~~~~~
bank.cpp:107:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  107 |         scanf(" %d",&a);
      |         ~~~~~^~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 25 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29