AcWing 3596. a+b
原题链接
简单
#include<iostream>
#include<vector>
#include<cstring>
using namespace std;
vector<int> add(vector<int> &A, vector<int> &B)
{
vector<int> C;
int t = 0;
if (A.size() < B.size())
return add(B, A);
for(int i = 0; i < A.size(); i++)
{
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;
while(cin >> a >> b)
{
vector<int> 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');
vector<int> ans = add(A, B);
for(int i = ans.size() - 1; i >= 0; i--)
cout << ans[i];
puts("");
}
}