# Help in MARCHA1

Can someone help me with this one.

here is the link to my code.
https://www.codechef.com/viewsolution/16308609

So after reading the question, we know that you will get mugged "if there is a subset of your banknotes that sums to m ".

Let isSubSetSum(int set[], int n, int sum) be the function to find whether there is a subset of set[] with sum equal to sum. n is the number of elements in set[].

The isSubsetSum problem can be divided into two subproblems

(a) Include the last element, recur for n = n-1, sum = sum – set[n-1]

(b) Exclude the last element, recur for n = n-1.

``````#include <bits/stdc++.h>

using namespace std;

int arr;

bool isSubsetSum(int set[], int n, int sum) {
if (sum == 0)
return true;
if (n == 0 && sum != 0)
return false;
if (set[n - 1] > sum)
return isSubsetSum(set, n - 1, sum);
return isSubsetSum(set, n - 1, sum) || isSubsetSum(set, n - 1, sum - set[n - 1]);
}

int main() {
int t;
cin >> t;
while (t--) {
int n, sum;
cin >> n >> sum;
for (int k = 0; k < n; k++) cin >> arr[k];
if (isSubsetSum(arr, n, sum))
printf("Yes\n");
else
printf("No\n");
}
return 0;
}
``````

TEST CASE:

1

15 5042

726

505

299

293

686

184

656

372

708

836

498

247

704

469

648

EXPECTED OUTPUT:

Yes