1.1 KB | 1103 chars
"""
[9468: Islands in the Data Stream](https://www.acmicpc.net/problem/9468)
Tier: Silver 5
Category: ad_hoc, bruteforcing, implementation
"""
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta
SYS_INPUT = True
RECURSION_LIMIT = 10 ** 7
SET_RECURSION = False
BLANK = " "
if SET_RECURSION:
sys.setrecursionlimit(RECURSION_LIMIT)
inp = lambda : sys.stdin.readline().rstrip() if SYS_INPUT else input()
mii = lambda : [*map(int,inp().split())]
mfi = lambda : [*map(float,inp().split())]
ii = lambda : int(inp())
fi = lambda : float(inp())
isplit = lambda : inp().split()
p = print
def gcd(a, b): return gcd(b, a % b) if b > 0 else a
def lcm(a, b): return a * b // gcd(a, b)
def solve():
tc_num, *l = mii()
stk = []
cnt = 0
for i in l:
if len(stk) == 0:
stk.append(i)
else:
if i == stk[-1]:
continue
elif stk[-1] > i:
stk.pop()
cnt += 1
else:
stk.append(i)
p(f"{tc_num} {cnt}")
if __name__ == "__main__":
tc = ii()
for t in range(1, tc+1):
ret = solve()