problem code:-MINFD
for _ in range(int(input())):
a,n = map(int, input().split())
s = list(map(int, input().split()))
count = 0
sa = 0
if sum(s)<n:
print("-1")
else:
for i in s:
if sa<n:
count+=1
sa+=i
print(count)
I can’t understand what wrong I’m doing here