dsalgo 0.3.10

A package for Datastructures and Algorithms.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

pub fn sum_arithmetic_progression(
    a: i64,
    b: i64,
    count: u64,
) -> i64 {
    assert!(count > 0);

    if count == 1 {
        assert!(a == b);
    } else {
        assert!((b - a) % (count as i64 - 1) == 0);
    }

    (a + b) * count as i64 / 2
}

#[cfg(test)]

mod tests {

    #[test]

    fn test() {
        use super::*;

        assert_eq!(sum_arithmetic_progression(1, 10, 10), 55);

        assert_eq!(sum_arithmetic_progression(1, 9, 5), 25);
    }
}