1058. A+B in Hogwarts (20)

#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <algorithm>

#include <cstring>

using namespace std;

int main()
{
//    freopen("in.txt","r",stdin);

long long a[3],b[3],c[3],carry;
scanf("%lld.%lld.%lld %lld.%lld.%lld",&a[0],&a[1],&a[2],&b[0],&b[1],&b[2]);
c[2]=(a[2]+b[2])%29;
carry=(a[2]+b[2])/29;
c[1]=(a[1]+b[1]+carry)%17;
carry=(a[1]+b[1]+carry)/17;
c[0]=(a[0]+b[0]+carry);

printf("%lld.%lld.%lld",c[0],c[1],c[2]);

return 0;
}