20250527 finished.
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@ -678,3 +678,5 @@ mod p2942_find_words_containing_character;
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mod p2131_longest_palindrome_by_concatenating_two_letter_words;
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mod p1857_largest_color_value_in_a_directed_graph;
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mod p2894_divisible_and_non_divisible_sums_difference;
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@ -0,0 +1,31 @@
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/**
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* [2894] Divisible and Non-divisible Sums Difference
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*/
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pub struct Solution {}
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// submission codes start here
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impl Solution {
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pub fn difference_of_sums(n: i32, m: i32) -> i32 {
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(1..=n)
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.filter_map(|x| if x % m != 0 { Some(x) } else { None })
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.sum::<i32>()
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- (1..=n)
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.filter_map(|x| if x % m == 0 { Some(x) } else { None })
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.sum::<i32>()
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}
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}
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// submission codes end
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_2894() {
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assert_eq!(19, Solution::difference_of_sums(10, 3));
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assert_eq!(15, Solution::difference_of_sums(5, 6));
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assert_eq!(-15, Solution::difference_of_sums(5, 1));
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}
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}
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