duizhuangxiang.png
Two Sum.png
1.Two Sum II
Two Sum II.png
2.triangle-count
for(i=0到n)枚举一条边,找j<i,k<j的和大于所对应的边。
![triangle-count.png](http://upload-images.jianshu.io/upload_images/2919800-0f386cfeee7aeb9b.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
3.给n个数组要求其中k大的元素
还可以两两归并
1.png
2.png
4.Kth Largest Element
5.nuts-bolts-problem
灌水类题目
1. Trapping Rain Water
2.Container With Most Water
前向型或者追击型(窗口类,快慢类)
1.Minimum Size Subarray Sum
2.Longest Substring Without Repeating Characters
3. Minimum Window Substring
4. Longest Substring with at Most k Distinct Characters
k1.png
k2.png
窗口类指针.png
总结.png
前向型指针.png