Apk #2 (Gleb)

#include <ctime>
#include <stdlib.h>
#include <iostream>
#include <iomanip>
#include <numeric>
#include <chrono>
#define sizeMatrix 300
#define cycleValue 100000

int main()
{
    //initialization
    int matr[10000][10000], sum[10000];
    for (int i = 0; i < 10000; i++)
    {
        for (int j = 0; j < 10000; j++)
        {
            matr[i][j] = rand() % 100;
        }
        sum[i] = 0;
    }
    //calculating sum of columns (result in sum[])
    for (int i = 0; i < 10000; i++)
    {
        for (int j = 0; j < 10000; j++)
        {
            sum[i] += matr[j][i];
        }
    }
}