【C 語言的 LeetCode 30 天挑戰】第二十二天 (Subarray Sum Equals K)

LeetCode 2020/04/01 開始有個 30 天挑戰的活動，趁著這次機會跟大家一起寫看看。最近比較少寫，可能會卡關 XD 順便測試一下直播~ 【 C 語言的 LeetCode 30 天挑戰紀錄 】 第一天 (Single Number) : https://www.youtube.com/watch?v=Hy1hE0HBR3U&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=1 第二天 (Happy Number) : https://www.youtube.com/watch?v=sYjmFRujbRI&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=2 第三天 (Maximum Subarray) : https://www.youtube.com/watch?v=cL5tRclvvCI&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=3 第四天 (Move Zeroes) : https://www.youtube.com/watch?v=vy9QG75U77g&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=4 第五天 (Best Time to Buy and Sell Stock II) : https://www.youtube.com/watch?v=akTjUKEP7Co&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=5 第六天 (Group Anagrams) : https://www.youtube.com/watch?v=1zU77mcQJ-U&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=6 第七天 ( Counting Elements) : https://www.youtube.com/watch?v=HCFlfV1JJUw&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=7 第八天 (Middle of the Linked List) : https://www.youtube.com/watch?v=f4xocU8WIaU&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=8 第九天 (Backspace String Compare) : https://www.youtube.com/watch?v=aILH2R7zjXg&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=9 第十天 (Min Stack) : https://www.youtube.com/watch?v=Kih2_Cj9Zzg&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=10 第十一天 (Diameter of Binary Tree) : https://www.youtube.com/watch?v=pRSgKfgSw3g&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=11 第十二天 (Last Stone Weight) : https://www.youtube.com/watch?v=EWvYZuRqvIE&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=12 第十三天 (Contiguous Array) : https://www.youtube.com/watch?v=8I44drAGaV0&list=PLY_qIufNHc29OLToHki4t0Z5KIhUzdYxD&index=13