vector--OJ1

链接: link

class Solution {
public:int singleNumber(vector<int>& nums) {int ret=0;for(auto a : nums){ret^=a;}return ret;}
};

链接: link

class Solution {
public:vector<vector<int>> generate(int numRows) {vector<vector<int>> aa;for (int i = 0; i < numRows; i++){vector<int> a;a.resize(i + 1, 1);for (int j = 1; j < i ; j++){a[j] = aa[i - 1][j] + aa[i - 1][j - 1];}aa.push_back(a);}return aa; }
};