multDk.txt

#include <conio.h> 
#include <iostream>
#include <cstdio>  
using namespace std;
int R=10;
void mult(int *T1, int k)
{
	int i, p = 0, R = 10;

	for (i = 1; i <= T1[0]; i++)
	{
		int temp = (T1[i] * k) + p;
		T1[i] = temp % R;
		p = temp / R;
	}

	while (p > 0)
	{
		T1[0]++;
		T1[T1[0]] = p % R;
		p /= R;
	}
}
void add(int *T1, int *T2, int* T3) 
{
    int n = (T1[0] > T2[0]) ? T1[0] : T2[0];
	int p = 0, i, R =10;

    for (i = 1; i <= n; i++)
    {
        int temp = T1[i] + T2[i] + p;
		T3[i] = temp % R; 
        p = temp / R; 
    }
    
    if (p > 0) 
    {
    	n++; 
    	T3[n] = p; 
    }
    
    T3[0] = n;
}
void strtomasiv(char *str, int *T)
{
	int i;

	T[0] = strlen(str); 
for (i = 0; i < T[0]; i++)
{
				T[T[0] - i] = str[ i] -'0';
}
}
void out1(int *T)
{
  int i, j, p;

for (i = T[0]; i > 0; i--)
  {
  	cout << T[i];
  }
  
  cout << endl;
}
void main(){
	int a[100];
	int b[100];
	int c[100];
	char str[100],st[100];
	scanf("%s", str);
	strtomasiv(str,a);
	out1(a);
	scanf("%s", st);
	strtomasiv(st,b);
	out1(b);

add(a,b,c);
out1(c);
mult(a,5);
out1(a);
cin>>str;
}