#include <stdio.h>

#define ROWS 5
#define COLS 4

int main(void) {

  double table [ROWS][COLS] =
    {{ 3.1,  5.5,  2.7, 19.3},
     { 0.2, 15.4, 16.9, -3.0},
     { 7.2,  5.4, 18.0, 13.7},
     {17.8, 15.4, 18.6,  3.0},
     { 7.1, -5.4,  8.7,  0.3}};

  double min_el = table[0][0], max_el = table[0][0];

  int i,j;

  for(i = 0; i < ROWS; i++)
    for(j = 0; j < COLS; j++){
      if (table[i][j] < min_el) min_el = table[i][j];
      if (table[i][j] > max_el) max_el = table[i][j];
    };

  printf("\nThe minimun element is %f, and the maxium is %f\n\n", min_el, max_el);
  return 0;
}