Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
x=[]
y=[]
p=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    x.append(xt)
    y.append(yt)
    p.append([xt,yt])
ans=10**20
x.sort()
y.sort()
p.sort(key=lambda xt:xt[0])

for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            for l in range(k+1,N):
                ymin=y[k]
                ymax=y[l]
                A=(xmax-xmin)*(ymax-ymin)
                ct=0
                for m in range(N):
                    if xmin<=p[m][0] and p[m][0]<=xmax and ymin<=p[m][1] and p[m][1]<=ymax:
                        ct+=1
                if ct==K:
                    ans=min(ans,A)
                    break
print(ans)


Fixed submission:
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
x=[]
y=[]
point=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    x.append(xt)
    y.append(yt)
    point.append([xt,yt])
ans=10**20
x.sort()
y.sort()
point.sort(key=lambda x:x[1])


for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            ymin=y[k]
#            ymax=y[l]
#            
            ct=0
            for p in point:
                if xmin<=p[0] and p[0]<=xmax and ymin<=p[1]:
                    ct+=1
                if ct==K:
                    A=(xmax-xmin)*(p[1]-ymin)
                    ans=min(ans,A)
                    break
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
x=[]
y=[]
p=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    x.append(xt)
    y.append(yt)
    p.append([xt,yt])
ans=10**20
x.sort()
y.sort()
for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            for l in range(k+1,N):
                ymin=y[k]
                ymax=y[l]
                A=(xmax-xmin)*(ymax-ymin)
                ct=0
                for m in range(N):
                    if xmin<=p[m][0] and p[m][0]<=xmax and ymin<=p[m][1] and p[m][1]<=ymax:
                        ct+=1
                if ct==K:
                    ans=min(ans,A)
                    break
print(ans)


Fixed submission:
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
x=[]
y=[]
point=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    x.append(xt)
    y.append(yt)
    point.append([xt,yt])
ans=10**20
x.sort()
y.sort()
point.sort(key=lambda x:x[1])


for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            ymin=y[k]
#            ymax=y[l]
#            
            ct=0
            for p in point:
                if xmin<=p[0] and p[0]<=xmax and ymin<=p[1]:
                    ct+=1
                if ct==K:
                    A=(xmax-xmin)*(p[1]-ymin)
                    ans=min(ans,A)
                    break
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
xl=[]
yl=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    xl.append(xt)
    yl.append(yt)
ans=10**20
x=sorted(xl)
y=sorted(yl)
for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            for l in range(k+1,N):
                ymin=y[k]
                ymax=y[l]
                A=(xmax-xmin)*(ymax-ymin)
                ct=0
                for m in range(N):
                    if xmin<=xl[m] and xl[m]<=xmax and ymin<=yl[m] and yl[m]<=ymax:
                        ct+=1
                if ct==K:
                    ans=min(ans,A)
                    break
print(ans)



Fixed submission:
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
x=[]
y=[]
point=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    x.append(xt)
    y.append(yt)
    point.append([xt,yt])
ans=10**20
x.sort()
y.sort()
point.sort(key=lambda x:x[1])


for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            ymin=y[k]
#            ymax=y[l]
#            
            ct=0
            for p in point:
                if xmin<=p[0] and p[0]<=xmax and ymin<=p[1]:
                    ct+=1
                if ct==K:
                    A=(xmax-xmin)*(p[1]-ymin)
                    ans=min(ans,A)
                    break
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
xl=[]
yl=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    xl.append(xt)
    yl.append(yt)
ans=10**20
x=sorted(xl)
y=sorted(yl)
for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            for l in range(k+1,N):
                ymin=y[k]
                ymax=y[l]
                A=(xmax-xmin)*(ymax-ymin)
                ct=0
                for m in range(N):
                    if xmin<=xl[m] and xl[m]<=xmax and ymin<=yl[m] and yl[m]<=ymax:
                        ct+=1
                if ct>=K:
                    ans=min(ans,A)
print(ans)



Fixed submission:
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
x=[]
y=[]
point=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    x.append(xt)
    y.append(yt)
    point.append([xt,yt])
ans=10**20
x.sort()
y.sort()
point.sort(key=lambda x:x[1])


for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            ymin=y[k]
#            ymax=y[l]
#            
            ct=0
            for p in point:
                if xmin<=p[0] and p[0]<=xmax and ymin<=p[1]:
                    ct+=1
                if ct==K:
                    A=(xmax-xmin)*(p[1]-ymin)
                    ans=min(ans,A)
                    break
print(ans)

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
x=[]
y=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    x.append(xt)
    y.append(yt)
ans=10**20
for i in range(N):
    for j in range(N):
        if i!=j and x[i]<x[j]:
            xmin=x[i]
            xmax=x[j]
        else:
            continue
        for k in range(N):
            for l in range(N):
                if k!=l and y[k]<y[l]:
                    ymin=y[k]
                    ymax=y[l]
                else:
                    continue
                A=(xmax-xmin)*(ymax-ymin)
                ct=0
                for m in range(N):
                    if xmin<=x[m] and x[m]<=xmax and ymin<=y[m] and y[m]<=ymax:
                        ct+=1
                if ct>=K:
                    ans=min(ans,A)
print(ans)



Fixed submission:
import sys
input = sys.stdin.readline

N, K=map(int,input().strip().split(' '))
x=[]
y=[]
point=[]
for i in range(N):
    xt,yt=map(int,input().strip().split(' '))
    x.append(xt)
    y.append(yt)
    point.append([xt,yt])
ans=10**20
x.sort()
y.sort()
point.sort(key=lambda x:x[1])


for i in range(N):
    for j in range(i+1,N):
        xmin=x[i]
        xmax=x[j]
        for k in range(N):
            ymin=y[k]
#            ymax=y[l]
#            
            ct=0
            for p in point:
                if xmin<=p[0] and p[0]<=xmax and ymin<=p[1]:
                    ct+=1
                if ct==K:
                    A=(xmax-xmin)*(p[1]-ymin)
                    ans=min(ans,A)
                    break
print(ans)