#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define BUFFER_SIZE 255
#define MAX_ARRAY_LENGTH 150

typedef struct powerlifter
{
int lifter_ID;
char lifter_name[25];
char lifter_gender;
float lifter_weight;
char weight_category[10];
float squat[3];
float bench[3];
float deadlift[3];

} PL;

int counter = 0;
PL *bb = NULL;

void load_data();
void display_menu();
void add_new_competitor_result();
void view_all_competitor_results();
void sort_competitor_results_by_name();
void sort_competitor_results_by_category();
void find_disqualified_competitors();
void find_overall_best_lifter();
void save_data();
float findmax(float *seq);
float pts(PL guy);
float total(PL guy);

int main()
{
load_data();
int selection = 0;

//add_new_competitor_result();

do{
   display_menu();
   scanf("%d", &selection);

   switch (selection)
{
case 1: add_new_competitor_result();
break;
case 2: view_all_competitor_results(stdout);
break;
case 3: sort_competitor_results_by_name();
break;
case 4: sort_competitor_results_by_category();
break;
case 5:
find_disqualified_competitors();
break;
case 6: find_overall_best_lifter();
break;
case 7: save_data("results.txt");
break;

}

}while(selection != 7);

return 0;
} // end main

void display_menu()
{
printf("\n\n**************CROSSFIT GAMES***************\n");

printf("1. Add a competitor result\n");
printf("2. View all competitor results\n");
printf("3. Sort competitor results by name\n");
printf("4. Sort competitor results by weight category\n");
printf("5. Find disqualified competitors\n");
printf("6. Find the overall best lifter\n");
printf("7. Exit\n");

printf("*****************************\n");
printf("\nPlease enter your Choice: ");
}

void add_new_entry(char *buff)
{
   counter++;
   bb = realloc(bb, sizeof(PL) * (counter+1));

   bb[counter].lifter_ID = counter;

   //printf("individual.lifter_ID = %d\n", bb[counter].lifter_ID);

   char fName[25], sName[25];

   char *ch;

   ch = strtok(buff, " ");
   strcpy(fName, ch);

   ch = strtok(NULL, " ");
   strcpy(sName, ch);

   sprintf(bb[counter].lifter_name, "%s %s", fName, sName);

   ch = strtok(NULL, " ");
   bb[counter].lifter_gender = (char *) *ch;

   ch = strtok(NULL, " ");
   bb[counter].lifter_weight = atof(ch);

   ch = strtok(NULL, " ");
   strcpy(bb[counter].weight_category, ch);

   float fSquat, sSquat, tSquart;

   ch = strtok(NULL, " ");
   fSquat = atof(ch);

   ch = strtok(NULL, " ");
   sSquat = atof(ch);

   ch = strtok(NULL, " ");
   tSquart = atof(ch);

   bb[counter].squat[0] = fSquat;
   bb[counter].squat[1] = sSquat;
   bb[counter].squat[2] = tSquart;

   float fBench, sBench, tBench;
   ch = strtok(NULL, " ");
   fBench = atof(ch);
   ch = strtok(NULL, " ");
   sBench = atof(ch);
   ch = strtok(NULL, " ");
   tBench = atof(ch);

   bb[counter].bench[0] = fBench;
   bb[counter].bench[1] = sBench;
   bb[counter].bench[2] = tBench;

   float fDeadlift, sDeadlift, tDeadlift;

   ch = strtok(NULL, " ");
   fDeadlift = atof(ch);
   ch = strtok(NULL, " ");
   sDeadlift = atof(ch);
   ch = strtok(NULL, " ");
   tDeadlift = atof(ch);
   ch = strtok(NULL, " ");

   bb[counter].deadlift[0] = fDeadlift;
   bb[counter].deadlift[1] = sDeadlift;
   bb[counter].deadlift[2] = tDeadlift;

   reset_ind();
}

void load_data()
{
FILE *fp;

char buff[BUFFER_SIZE];

fp = fopen("exam.txt", "r");

while (fgets(buff, BUFFER_SIZE, (FILE*)fp) != NULL)
   add_new_entry(buff);

fclose(fp);
}

void add_new_competitor_result()
{
printf("Enter the new result: ");
char buff[BUFFER_SIZE];
fgets(buff, BUFFER_SIZE, stdin);
add_new_entry(buff);
}

int *ind = NULL;

void reset_ind()
{
if (ind != NULL) free(ind);
ind = (int *) calloc(counter + 2, sizeof(int));

for (int i=1; i<=counter; i++)
   ind[i] = i;
}

void view_all_competitor_results(FILE *f)
{
view_all_competitor_results_wix(f, 0);
}

void view_all_competitor_results_wix(FILE *f, int wix)
{
int i;
//fprintf(f, "ID\t\tName\tGender\tWeight\tWeight cat.\tSquat \tBench \t Deadlift");
fprintf(f, "%3s %-20s%10s%10s%20s%15s%15s%15s", "ID", "Name", "Gender", "Weight", "Weight Category", "Squat", "Bench", "Deadlift");
if (wix==1) printf(f,"%10s %10s\n\n","Total","Wix"); else fprintf(f,"\n\n");

for(i = 1; i <= counter; i++){
   PL pl = bb[ind[i]];

   fprintf(f, "%3d", pl.lifter_ID

Description In our discussions of dynamic memory management we dis...