Garso signalai

#include <iostream>
#include <cstdio> // ivedimas

using namespace std;

int main()
{
    freopen("duom.txt", "r", stdin); // ivedimas
    int n, m[31][51], k;

    cin >> n >> k; // ivedimas
    for(int i=0; i<n; i++)
    {
        for(int j=0; j<k; j++) cin >> m[i][j]; // ivedimas
    }

    for(int i=0; i<n; i++)
    {
        for(int j=0; j<k; j++)
        {
            if(j==0) cout << (m[i][j]+m[i][j+1])/2 << " ";
            else if(j==k-1) cout << (m[i][j]+m[i][j-1])/2 << " ";
            else cout << (m[i][j-1]+m[i][j+1]+m[i][j])/3 << " ";
        }
        cout << endl;
    }
    return 0;
}