Minimum Pizzas | codechef solution

 

Problem

Each pizza consists of $4$ slices. There are $N$ friends and each friend needs exactly $X$ slices.

Find the minimum number of pizzas they should order to satisfy their appetite.

Input Format

• The first line of input will contain a single integer $T$, denoting the number of test cases.
• Each test case consists of two integers $N$ and $X$, the number of friends and the number of slices each friend wants respectively.

Output Format

For each test case, output the minimum number of pizzas required.

Constraints

• $1 \leq T \leq 100$
• $1 \leq N, X \leq 10$

Sample 1:

Input

Output

4
1 5
2 6
4 3
3 5

2
3
3
4

Explanation:

Test case $1$: There is only $1$ friend who requires $5$ slices. If he orders $1$ pizza, he will get only $4$ slices. Thus, at least $2$ pizzas should be ordered to have required number of slices.

Test case $2$: There are $2$ friends who require $6$ slices each. Thus, total $12$ slices are required. To get $12$ slices, they should order $3$ pizzas.

Test case $3$: There are $4$ friends who require $3$ slices each. Thus, total $12$ slices are required. To get $12$ slices, they should order $3$ pizzas.

Test case $4$: There are $3$ friends who require $5$ slices each. Thus, total $15$ slices are required. To get $15$ slices, they should order at least $4$ pizzas.

Code:-

t=int(input())

for i in range(t):

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

k=n*x

if k%4==0:

print(k//4)

else:

print((k//4)+1)

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