其实很简单。。
#include
#include
using namespace std;
int main()
{
string a,b;
long long n,m,sum = 0,_sum = 0;
cin >> a >> n >> b >> m;
for(unsigned int i = 0; i < a.size(); i++)
if((a[i]-'0') == n) sum = sum*10+(a[i]-'0');
for(unsigned int i = 0; i < b.size(); i++)
if((b[i]-'0') == m) _sum = _sum*10+(b[i]-'0');
cout << sum+_sum << endl;
return 0;
}
