a716121的专栏

class Solution { public: string intToRoman(int num) { string res=""; int nums[]={1000,900,500,400,100,90,50,40,10,9,5,4,1}; string str[]={"M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"}; int i=0; wh...

class Solution { public int maxProfit(int[] prices) { int pro=0,max=0; for(int i=0;i<prices.length-1;i++){ for(int j=i;j<prices.length;j++){ pro=prices[j]-prices[i]; if(pro>max)...

class Solution { public int findContentChildren(int[] g, int[] s) { if(g==null||s==null) return 0; Arrays.sort(g); Arrays.sort(s); int i=0,j=0; while(i<g.length&&j<s.length){ if(g[...