Cod sursă (job #578834)

#include <bits/stdc++.h>
 
 
using namespace std;

 
int n, k, col, rind, on_off;
unsigned a[50005];
 
int Primeste(int pos)
{
    int val = (a[pos >> 5] >> (pos & 31)) & 1;
    return val;
}
void Pregateste(int pos, int val)
{
    unsigned ant = ~(1 << (pos & 31));
    a[pos >> 5] = (a[pos >> 5] & ant) ^ (val << (pos & 31));
}
void Solve(int i)
{
    for(int bit = i / 32; bit >= 1; bit--)
    {
        a[bit] = a[bit] ^ (a[bit] << 1);
        a[bit] = a[bit] ^ (a[bit - 1] >> 31);
    }
    a[0] = a[0] ^ (a[0] << 1);
}
 
int main()
{
	
ifstream cin("beculete.in");
ofstream cout("beculete.out");
    cin >> n >> k;
 
    Pregateste(1, 1);
    for(int i = 2; i <= n; i++)
    {
        int last = Primeste(i - 1);
 
        Solve(i);
        Pregateste(i, last);
 
        while(rind <= i && k >= 0)
        {
            if(rind == i)
                Pregateste(col, on_off);
 
            cin >> rind >> col >> on_off;
            k--;
        }
    }
 
    for(int i = 1; i <= n; i++)
        cout << Primeste(i) << " ";
    return 0;
}