2021-10-09高精度加法

#include 
#include 

using namespace std ;

string num;
int a[110],b[110],c[110];

int main ( ) {
	
	cin >> num;
	int len1 = num.size();
	for ( int i = len1 ; i >= 1 ; i -- ) a[len1-i+1]=num[i-1]-'0';
	
	cin >> num;
	int len2 = num.size();
	for ( int i = len2 ; i >= 1 ; i -- ) b[len2-i+1]=num[i-1]-'0';
	
	int n=max(len1,len2);
	for ( int i = 1 ; i <= n ; i++ ){
	    c[i] = a[i] + b[i];
		if( c[i] >= 10 ) c[i]-=10,c[i+1]++;
	}
	
	if( c[n+1] > 0 ) cout << c[n+1];
	for ( int i = n ; i >= 1 ; i-- ) cout << c[i];
}