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695

# Sum or Product

Difficulty: EASY
Contributed By
Avg. time to solve
15 min
Success Rate
80%

Problem Statement

#### For example

``````Given ‘N’ = 4, ‘Q’ = 1.
Then the answer is 10 because the sum of all integers between 1 and 4 are 1, 2, 3, and 4. Hence 1 + 2 + 3 + 4 is equal to 10.
``````
##### Input format:
``````The first line of input contains an integer ‘T’ denoting the number of test cases.

Next, ‘T’ lines contain two space-separated integers ‘N’, where ‘N’ is the number given and ‘Q’, denoting the type of query.
``````
##### Output Format :
``````For each test case, You are supposed to return an integer denoting the sum or product of ‘N’ numbers.
``````
##### Note:
``````You are not required to print the expected output; it has already been taken care of. Just implement the function.
``````
##### Constraints:
``````1 <= ‘T’ <= 10
1 <= ‘N’ <= 10^4
1 <= ‘Q’ <= 2

Time Limit: 1 sec.
``````

#### Sample Input 1 :

``````2
4 1
4 2
``````

#### Sample Output 1 :

``````10
24
``````

#### Explanation of the Sample Input 1:

``````In the first test case, the answer is 10 because all integers between 1 and 4 are 1, 2, 3, and 4. Hence 1 + 2 + 3 + 4 is equal to 10.

In the second test case, the answer is 25 because all integers between 1 and 4 are 1, 2, 3, and 4. Hence 1 * 2 * 3 * 4 is equal to 24.
``````

#### Sample Input 2 :

``````2
5 1
5 2
``````

#### Sample Output 2 :

``````15
120
``````
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