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Cod sursa(job #293106)
#include<fstream>
#include<string.h>
#define N 1000005
using namespace std;
char sir[N];
int rst[100001];
int ok, nr[N];
long long d, rest;
void add(int A[], int B[])
{
int i, t = 0;
for (i=1; i<=A[0] || i<=B[0] || t; i++, t/=10)
A[i] = (t += A[i] + B[i]) % 10;
A[0] = i - 1;
}
int mod(int A[], long B)
{
int i, t = 0;
for (i = A[0]; i > 0; i--)
t = (t * 10 + A[i]) % B;
return t;
}
int main()
{
ifstream f("next.in");
ofstream g("next.out");
int lung, k = 1, i;
char c;
f.get(sir, 1000004);
lung = strlen(sir);
for(i = 0; i < lung; i++)
nr[lung-i] = sir[i]-'0';
nr[0] = lung;
f.get();
f>>d;
rest = (d - mod(nr,d))%d;
while(rest)
{
rst[++rst[0]] = rest%10;
rest/= 10;
}
add(nr, rst);
for(i = nr[0]; i >= 1; i--)
g<<nr[i];
return 0;
}