#include <stdio.h>
#include <stdlib.h>

float tomb[100][100];
float max;

float maxfg(void)
{
  int i, j;
  float max;

  max = tomb[0][0];
  for (i = 0; i < 100; i++) {
    for (j = 0; j < 100; j++) {
      if (tomb[i][j] > max) {
        max = tomb[i][j];
      }
    }
  }
  return max;  
}

void main(void)
{
  max = maxfg();
  printf("max = %f\n", max);
}