Untitled

// #include "stdafx.h" crap not needed
#include <stdio.h>
#include <string.h>
// #include <conio.h> crap not needed
#include <stdlib.h>


#define NO_OF_STUDENTS 4        // too lazy for 20

struct data {
  char name[20];
  int age;
  int weight;
};

int main()
{
  struct data Students[NO_OF_STUDENTS]; // 20 students.
  int Counter = 0;

  for (Counter = 0; Counter < NO_OF_STUDENTS; ++Counter) {
    scanf("%s", Students[Counter].name); //what about "[Counter"] after name??
    scanf("%d", &Students[Counter].age);
    scanf("%d", &Students[Counter].weight);
  }

  for (Counter = 0; Counter < NO_OF_STUDENTS; ++Counter) {
    printf("Name=%s, ", Students[Counter].name);
    printf("Age=%d, ", Students[Counter].age);
    printf("Weight=%d\n", Students[Counter].weight);
  }


qsort (Students[20].age,20, sizeof(int), compare); // i dont know what do with this


system("pause");

  return 0;
}


int compare (const void * a, const void * b)
{
    return ( *(int*)a - *(int*)b );
}