Problem: There is a farm whose length and width are A yard and B yard, respectively. A farmer, John, made a vertical road and a horizontal road inside the farm from one border to another, as shown below: (The gray part represents the roads.)    What is the area of this yard excluding the roads? Find it.

Submission attempts (in order):
import sys

N = float(input())
t = 3
prime_number = []
while t <= N / 15.0:
    l = []
    for i in range(t+1):
        if i != 0:
            if t % i == 0:
                l.append(i)
    if l == [1, t]:
        prime_number.append(t)
    t += 1
n = len(prime_number)
ans = 0
if n < 3:
    print(0)
    sys.exit()
else:
    for i in prime_number:
        for j in prime_number:
            if j != i:
                for k in prime_number:
                    if k != i and k != j:
                        if i * j * k <= N:
                            ans += 1
ans = ans / 6
if N >= 189:
    ans += 2
elif N >= 135:
    ans += 1
print(int(ans))

import sys

N = float(input())
t = 3
prime_number = []
while t <= N / 15.0:
    l = []
    for i in range(t+1):
        if i != 0:
            if t % i == 0:
                l.append(i)
    if l == [1, t]:
        prime_number.append(t)
    t += 1
n = len(prime_number)
ans = 0
if n < 3:
    print(0)
    sys.exit()
else:
    for i in prime_number:
        for j in prime_number:
            if j != i:
                for k in prime_number:
                    if k != i and k != j:
                        if i * j * k <= N:
                            ans += 1
ans = ans / 6
if N >= 189:
    ans += 2
elif N >= 135:
    ans += 1
print(int(ans))

import sys

N = float(input())
t = 3
prime_number = []
while t <= N / 15.0:
    l = []
    for i in range(t+1):
        if i != 0:
            if t % i == 0:
                l.append(i)
    if l == [1, t]:
        prime_number.append(t)
    t += 1
n = len(prime_number)
ans = 0
if n < 3:
    print(0)
    sys.exit()
else:
    for i in prime_number:
        for j in prime_number:
            if j != i:
                for k in prime_number:
                    if k != i and k != j:
                        if i * j * k <= N:
                            ans += 1
ans = ans / 6
if N >= 189:
    ans += 2
elif N >= 135:
    ans += 1
print(int(ans))

import sys

N = float(input())
t = 3
prime_number = []
while t <= N / 15.0:
    l = []
    for i in range(t+1):
        if i != 0:
            if t % i == 0:
                l.append(i)
    if l == [1, t]:
        prime_number.append(t)
    t += 1
n = len(prime_number)
ans = 0
if n < 3:
    print(0)
    sys.exit()
else:
    for i in prime_number:
        for j in prime_number:
            if j != i:
                for k in prime_number:
                    if k != i and k != j:
                        if i * j * k <= N:
                            ans += 1
ans = ans / 6
if N >= 189:
    ans += 2
elif N >= 135:
    ans += 1
print(int(ans))

a, b = [int(_) for _ in input().split()]
ans = (a - 1) * (b - 1)
print(ans)

a, b = [int(_) for _ in input().split()]
ans = (a - 1) * (b - 1)
print(ans)

a, b = [int(_) for _ in input().split()]
ans = (a - 1) * (b - 1)
print(ans)

a, b = [int(_) for _ in input().split()]
ans = (a - 1) * (b - 1)
print(ans)

Verdicts: Runtime Error

Runtime Error

Runtime Error

Runtime Error

Accepted

Accepted

Accepted

Accepted