You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
1.1 KiB
36 lines
1.1 KiB
// File: coin_change_greedy_test.go
|
|
// Created Time: 2023-07-23
|
|
// Author: Reanon (793584285@qq.com)
|
|
|
|
package chapter_greedy
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
)
|
|
|
|
func TestCoinChangeGreedy(t *testing.T) {
|
|
// 贪心：能够保证找到全局最优解
|
|
coins := []int{1, 5, 10, 20, 50, 100}
|
|
amt := 186
|
|
res := coinChangeGreedy(coins, amt)
|
|
fmt.Printf("coins = %v, amt = %d\n", coins, amt)
|
|
fmt.Printf("凑到 %d 所需的最少硬币数量为 %d\n", amt, res)
|
|
|
|
// 贪心：无法保证找到全局最优解
|
|
coins = []int{1, 20, 50}
|
|
amt = 60
|
|
res = coinChangeGreedy(coins, amt)
|
|
fmt.Printf("coins = %v, amt = %d\n", coins, amt)
|
|
fmt.Printf("凑到 %d 所需的最少硬币数量为 %d\n", amt, res)
|
|
fmt.Println("实际上需要的最少数量为 3 ，即 20 + 20 + 20")
|
|
|
|
// 贪心：无法保证找到全局最优解
|
|
coins = []int{1, 49, 50}
|
|
amt = 98
|
|
res = coinChangeGreedy(coins, amt)
|
|
fmt.Printf("coins = %v, amt = %d\n", coins, amt)
|
|
fmt.Printf("凑到 %d 所需的最少硬币数量为 %d\n", amt, res)
|
|
fmt.Println("实际上需要的最少数量为 2 ，即 49 + 49")
|
|
}
|