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Cod sursa(job #214856)
/**/
#include<fstream.h>
#include<string.h>
long A[100005],d,n;
char s[100005],cit[2];
ifstream fin("next.in");
ofstream fout("next.out");
long imparte()
{
long t=0,i;
for(i=1;i<=A[0];i++)
{
t=(t*10+A[i])%d;
}
return t;
}
int main()
{
long i,rest,trec=0;
fin.getline(s,100005);
// fin.getline(cit,2);
fin>>d;
n=strlen(s);
for(i=n-1;i>=0;i--)
A[++A[0]]=s[i]-'0';
rest=imparte();
i=1;
// rest=d-rest;
while(rest!=0)
{
d=A[i]+trec+rest%10;
A[i]=d%10;
trec=d/10;
i++;
rest/=10;
}
if(trec!=0)
A[i]+=trec;
if(i>A[0]) A[0]=i;
for(i=A[0];i>=1;i--)
fout<<A[i];
fout<<'\n';
fout.close();
return 0;
}