Submission #856572

---

Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n,t,a[51],dp[51][2501];

ll solve(ll i, ll sum, ll m)
{
    if(i>n)
    {
        //cout<<sum<<" "<<m<<endl;
        if(sum==m)
            return 1;
        else return 0;
    }

    if(dp[i][sum]!=-1)return dp[i][sum];

    ll r1=0,r2=0;

    if(a[i]+sum<=m)
        r1=solve(i+1,sum+a[i],m);

    r2=solve(i+1,sum,m);

    return dp[i][sum]=r1+r2;
}

int main()
{
    ll i,j,k,cumsum=0,ans=0;

    scanf("%lld %lld",&n,&t);

    for(i=1; i<=n; i++)
    {
        scanf("%lld",&a[i]);
        cumsum+=a[i];
    }

    for(k=t; k<=cumsum; k+=t)
    {

        for(i=0; i<51; i++)
        {
            for(j=0; j<2501; j++)
            {
                dp[i][j]=-1;
            }
        }
        ans+=solve(1,0,k);
    }

    printf("%lld\n",ans);

    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:32:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld",&n,&t);
                             ^
./Main.cpp:36:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&a[i]);
                            ^

Judge Result