/* FILE: randMatrix.cpp  last change: 3-Jul-2014  author: Romeo Rizzi
 * randomly generates a random nxn matrix of integers in the range [minV,maxV] with all elements in last column at maxV.
 * Usage syntax:
 *   > randMatrix n minV maxV seed
 */

#include <iostream>
#include <cassert>
#include <cstdlib>
#include <ctime>

using namespace std;

int n, minV, maxV, seed;

int RandNumber(int min, int max) {
  return min + (int) ( (max-min +1) * (double( rand()-0.000000000001 ) / RAND_MAX ) );
}

int main(int argc, char** argv) {
  n = atoi(argv[1]);
  minV = atoi(argv[2]); maxV = atoi(argv[3]);
  srand(time(NULL));  if(argc > 4) srand( atoi(argv[4]) );

  cout << n << endl;
  for(int i = 0; i < n; i++) {
    for(int j = 0; j < n; j++) {
      int tmp = RandNumber(minV, maxV);
      if( j == n-1 )
          cout << maxV << " ";
      else
          cout << tmp << " ";
    }
    cout << endl;
  }
  return 0;
}