#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
#include <time.h>
int main(char argc, char* argv[]) {

    //checking if user provided 2 arguments
    if (argc != 3) {
        printf("Wrong number of arguments !\n");
        return 1;
    }

    int n, w;
    sscanf(argv[1], "%d", &n);
    sscanf(argv[2], "%d", &w);
    //creating an array that will contain float values that we will use later on
    float* myarray = (float*)malloc(n);

    srand(0);
    for (int i = 0; i < n; i++) {
        myarray[i] = 1000. * rand() / RAND_MAX;
    }

    float** doublearray = (float**)malloc(w * sizeof(float*));
    int columns = n / w;
    int modulo = n % w;

    //if n%w equals zero, distribute values equaly between rows
    if (modulo == 0) {
        for (int i = 0; i < w; i++) {
            doublearray[i] = (float*)malloc(columns * sizeof(float));
        }
    }
    //if n%w does not equal zero, increase last row size by modulo
    else {
        for (int i = 0; i < w - 1; i++) {
            doublearray[i] = (float*)malloc(columns * sizeof(float));
        }
        doublearray[w] = (float*)malloc((columns + modulo) * sizeof(float));
    }

    //distributing elements in 2 dimensional array
    int number = 0;
    for (int i = 0; i < w; i++) {
        for (int j = 0; j < sizeof(doublearray[i]); j++) {
            doublearray[i][j] = myarray[number];
            number++;
        }
    }

    //printing out the result
    for (int i = 0; i < w; i++) {
        for (int j = 0; j < sizeof(doublearray[i]); j++) {
            printf("%f", doublearray[i][j]);
            printf(" "); printf(" ");
        }
        printf("\n");
    }

    return 0;
}