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-rw-r--r--rust/difference-of-squares/src/lib.rs6
1 files changed, 3 insertions, 3 deletions
diff --git a/rust/difference-of-squares/src/lib.rs b/rust/difference-of-squares/src/lib.rs
index fdf2e93..fa4847c 100644
--- a/rust/difference-of-squares/src/lib.rs
+++ b/rust/difference-of-squares/src/lib.rs
@@ -1,11 +1,11 @@
pub fn square_of_sum(n: u32) -> u32 {
- todo!("square of sum of 1...{n}")
+ (1..=n).fold(0, |a,b| a+b).pow(2)
}
pub fn sum_of_squares(n: u32) -> u32 {
- todo!("sum of squares of 1...{n}")
+ (1..=n).fold(0, |a,b| a+b.pow(2))
}
pub fn difference(n: u32) -> u32 {
- todo!("difference between square of sum of 1...{n} and sum of squares of 1...{n}")
+ square_of_sum(n) - sum_of_squares(n)
}