Python题解

n,m = map(int,input().split())
l = []
for i in range(n):
a,b = map(int,input().split())
l.append([a,b])
l.sort(key = lambda x:(-x[1],x[0]))
count = l[int(m*1.5)-1][1]
cnt = 0
for i in l:
if i[1]>=count:
cnt+=1
else:
break
print(f"{count} {cnt}")
for i in range(cnt):
print(f"{l[i][0]} {l[i][1]}")