#include <iostream>
#include <string>
#include <stdlib.h>
#include <fstream>
using namespace std;

void PrtRandArr(float a[][100],int m,int n){
	for(int i=0;i<m;i++)
		for (int j = 0; j < n; j++) {
			a[i][j] =(float) rand() / 7;
			
		}
}

void ConvertMatrixToChar(float a[][100], int m, int n, char *s) {
	ofstream f("temp.txt");
	for (int i = 0; i < m; i++)
		for (int j = 0; j < n; j++) f << a[i][j] << " ";
	f.close();
	ifstream ff("temp.txt");	
	ff.getline(s, 100);
}


void main() {
	float a[100][100];
	int m = 3, n = 4;
	PrtRandArr(a, m, n);
	char s[100];
	ConvertMatrixToChar(a, m, n, s);
	cout << s;
}