My issue
My code
t=int(input())
for i in range(t):
n=int(input())
a=list(map(int,input().strip().split()))[:n]
sum=a[0]
for i in range(1,n):
if a[i]-1==a[i-1]:
sum+=a[i]
print(sum)
Problem Link: CodeChef: Practical coding for everyone