Code shared from the Rust Playground

playground.rs

fn minimalNumberOfCoins(coins: Vec<i32>, price: i32) -> i32 {
    let mut dp = vec![100; (price + 1) as usize];
    dp[0] = 0;
    for coin in &coins {
        for target in coin..price {
            dp[price as usize] = min(1 + dp[(price - coin) as usize], dp[(price) as usize])
        }
    }
    return dp[price as usize];
}

}