import heapq

n,m = map(int, input().split())

a = list(map(int, input().split()))
b = list(map(int, input().split()))
a.append(10**10)
b.append(10**10)

aa = []
bb = []
for i in range(n):
  aa.append((a[i], i))
  bb.append((b[i], i))
  
aa.sort()
bb.sort() 
ok = [1 for _ in range(n)]


tt = []
for _ in range(m):
  t,c = map(int, input().split())
  tt.append((c, t))
  
tt.sort()

anow = 0
ha = []
bnow = 0
hb = []

for c,t in tt:
  #print(c,t)
  
  if(t==1):
    while(1):
      if(aa[anow][0] > c):
        break
      heapq.heappush(ha, (-b[aa[anow][1]], aa[anow][1]))
      anow+=1
      
    while(ha):
      _, i = heapq.heappop(ha)
      if(ok[i]==1):
        ok[i]=0
        #print(i)
        break
      
      
  else:
    while(1):
      if(bb[bnow][0] > c):
        break
      heapq.heappush(hb, (-a[bb[bnow][1]], bb[bnow][1]))
      bnow+=1
    while(hb):
      _, i = heapq.heappop(hb)
      if(ok[i]==1):
        ok[i]=0
        #print(i)
        break
  
        
print(sum(ok))