玩原神玩的

#include <bits/stdc++.h>
using namespace std;

int main(){
string s1,s2;
int a,b,nums[105],count=-1,len1,len2,len3,tmp;
cin >> s1 >> s2;
len1 = s1.size();
len2 = s2.size();

if(len1>len2){
	for(int i = 0 ;i<len1-len2;i++){
		s2 = "0"+s2;
	} 
	len2 = len1;
}
else if(len2>len1){
	for(int i = 0 ;i<len2-len1;i++){
		s1 = "0"+s1;
	} 
	len1 = len2;
}

// cout << s2 <<endl;

len3 = max(len1,len2);
for (int i = 0 ; i<101;i++){
	nums[i] = 0;
}
for (int i = 0;i<len3;i++){
	a = s1[len1-i-1]-'0';
	b = s2[len2-i-1]-'0';
	count ++;
	
	if (a<0|| a >9) a=0;
	else if (b<0 || b>9) b=0;

// cout <<s1[a] << ' ' << s2[b] << endl;
// cout << a << ' '<<b<<endl;
nums[i] += a+b;
if (nums[i]>9){
// cout << nums[i]<<endl;
nums[i+1] = 1;
nums[i] %=10;
}
// cout << nums[i]<<endl;
}
// cout << count;
if (nums[len3+1])count++;
if (nums[count]==0)count++;
for (int j = count;j>-1;j--){
cout << nums[j];
}
return 0;
}