for d in range(int(input())):
n,q=map(int,input().split());l=list(map(int,input().split()));a=0;s=""
for i in range(n-1,-1,-1):
if l[i]<=a:s+='1'
elif q>a:s+='1';a+=1
else:s+='0'
print(s[::-1])148B - Escape | 847G - University Classes |
1110A - Parity | 1215B - The Number of Products |
604C - Alternative Thinking | 1204C - Anna Svyatoslav and Maps |
322A - Ciel and Dancing | 1689B - Mystic Permutation |
1711B - Party | 1702D - Not a Cheap String |
1714F - Build a Tree and That Is It | 1703F - Yet Another Problem About Pairs Satisfying an Inequality |
610A - Pasha and Stick | 1200A - Hotelier |
1091A - New Year and the Christmas Ornament | 1352B - Same Parity Summands |
1102A - Integer Sequence Dividing | 630B - Moore's Law |
1004A - Sonya and Hotels | 1680B - Robots |
1690A - Print a Pedestal (Codeforces logo) | 1295A - Display The Number |
1077A - Frog Jumping | 1714G - Path Prefixes |
1369C - RationalLee | 289B - Polo the Penguin and Matrix |
1716A - 2-3 Moves | 1670B - Dorms War |
1716B - Permutation Chain | 987A - Infinity Gauntlet |