Multiply and sum
Statement
Goal
Given a number you must multiply it by itself and all numbers below it and return the total sum of each multiplication.Example 1:
Input = 5
5*5+5*4+5*3+5*2+5*1=75
return 75
Example 2:
Input = 3
3*3+3*2+3*1=18
return 18
Input
Line 1: An integer N as the number to use to multiply.
Output
Line 1: An integer.
Constraints
0 ≤ N ≤ 9999
Example
Input
4
Output
40
Game modes
Fastest, Shortest, Reverse
Test cases
Test 1 Test
Input
4
Output
40
Validator 1 Validator
Input
7
Output
196
Test 2 Test
Input
5
Output
75
Validator 2 Validator
Input
8
Output
288
Test 3 Test
Input
15
Output
1800
Validator 3 Validator
Input
25
Output
8125
Test 4 Test
Input
58
Output
99238
Validator 4 Validator
Input
93
Output
406503
Test 5 Test
Input
502
Output
63379006
Validator 5 Validator
Input
685
Output
160944175
Test 6 Test
Input
0
Output
0
Validator 6 Validator
Input
0
Output
0
Test 7 Test
Input
5210
Output
70723952550
Validator 7 Validator
Input
9635
Output
447270478050
Solution language
Solution
Stub generator input