代码:
#include <iostream>
#include <vector>
using namespace std;
vector<int> add(vector<int> &A, vector<int> &B)
{
vector<int> C;
int t = 0;
for (int i = 0; i < A.size() || i < B.size(); i++)
{
if(i < A.size()) t += A[i];
if(i < B.size()) t += B[i];
C.push_back(t % 10);
t /= 10;
}
if(t) C.push_back(1);
return C;
}
int main()
{
string a, b;
vector<int> A, B;
cin >> a >> b;
for(int i = a.size() - 1; i >= 0; i--) A.push_back(a[i] - '0');
for(int i = b.size() - 1; i >= 0; i--) B.push_back(b[i] - '0');
auto C = add(A, B);
for(int i = C.size() - 1; i >= 0; i--) printf("%d", C[i]);
return 0;
}