36 lines
555 B
Rust
36 lines
555 B
Rust
fn factorial_loop() -> i64 {
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let mut product = 1;
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let mut i = 1;
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while i <= 10 {
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product *= i;
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i += 1;
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}
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product
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}
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fn index_for_loop() -> usize {
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let mut sum = 0;
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let a = [0, 10, 20, 30];
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for i in 0..a.len() {
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sum += a[i];
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}
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sum
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}
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fn for_loop() -> usize {
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let mut sum = 0;
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let a = [0, 10, 20, 30];
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for &n in &a {
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sum += n;
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}
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sum
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}
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fn main() {
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assert_eq!(factorial_loop(), 3628800);
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assert_eq!(index_for_loop(), 60);
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assert_eq!(for_loop(), 60);
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}
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