高精度加法

#include <iostream>
#include <vector>
#include <memory.h>
using namespace std;
int main()
{vector<int> ans;string a;string b;cin >> a >> b;while (a.length() < b.length()){a = '0' + a;}while (b.length() < a.length()){b = '0' + b;}int numb = a.length()-1;int x = 0;while (numb >=0){int temp = a[numb]-'0' + b[numb] -'0';int shu = temp % 10;ans.push_back(shu+x);	x = temp / 10;numb--;}if (x != 0){ans.push_back(x);}for (int i = ans.size() - 1; i >= 0; i--){cout << ans[i];}
}

高精度减法