初学数据结构

typedef enum{ A, B, C, D } SchoolName;
typedef enum{Female,Male} SexType;
typedef struct
{
    char event[3];
    SexType sex;
    SchoolName school;
    int score;
}Component;
typedef struct{
    int MaleSum;
    int FemaleSum;
    int TotalSum;
}Sum;
Sum SumScore(SchoolName sn, Component a [], int n)
{
    Sum temp;
    temp.MaleSum = 0;
    temp.FemaleSum = 0;
    temp.TotalSum = 0;
    int i;
    for (i = 0; i < n; i++)
    {
        if (a[i].school = sn)
        {
            if (a[i].sex == Male)
                temp.MaleSum += a[i].score;
            if (a[i].sex == Female)
                temp.FemaleSum += a[i].score;
        }
    }
    temp.TotalSum = temp.MaleSum + temp.FemaleSum;
    return temp;
}

#include<iostream>
#include<cstdlib>
using namespace std;
#define MAXINT 65535
#define ArrSize 100
int fun(int i);
int main()
{
    int i, k;
    int a[ArrSize];
    cout << "Enter K:";
    cin >> k;
    if (k > ArrSize - 1)
        exit(0);
    for (i = 0; i <= k; i++)
    {
        if (i == 0)
            a[i] = 1;
        else
        {
            if (2 * i*a[i - 1] > MAXINT)
                exit(0);
            else
                a[i] = 2 * i*a[i - 1];
        }
    }
    for (i = 0; i <= k; i++)
    {
        if (a[i] > MAXINT)
            exit(0);
        else
            cout << a[i] << " ";
    }
    system("pause");
    return 0;
}

#include<iostream>
#include<cstdlib>
#define N 10
using namespace std;
double polynomail(int a [], int i, double x, int n);
int main()
{
    double x;
    int n, i;
    int a[N];
    cout << "input x:";
    cin >> x;
    cout << "input n:";
    cin >> n;
    if (n > N - 1)
        exit(0);
    cout << "input every number:";
    for (i = 0; i <= n; i++)
        cin >> a[i];
    cout << "The polynomail value is:" << polynomail(a, n, x, n)<<endl;
    return 0;
}
double polynomail(int a [], int i, double x,int n)
{
    if (i > 0)
        return a[n - i] + polynomail(a, i - 1, x, n)*x;
    else
        return a[n];
}