代码暂存

#include<stdio.h>
#include<stdlib.h>
#pragma warning (disable:4996)
typedef struct
{
    int data[1000];
    int length;
}SqList;

void CreatList(SqList *&L, int a[], int n)
{
    int i = 0, k = 0;
    L = (SqList*)malloc(sizeof(SqList));
    while (i < n)
    {
        L->data[k]=a[i];
        k++; i++;
    }
    L->length = k; 
}

void InitList(SqList *&L)
{
    L = (SqList*)malloc(sizeof(SqList));
    L->length = 0;
}

void Destroy(SqList *&L)
{
    free(L);
}

void fun(SqList *L, int x, int y)
{
    int k = 0;
    for (int i = 0; i < L->length; i++)
    {
        if (L->data[i] < x||L->data[i] > y)
        {
            L->data[k] = L->data[i];
            k++;
        }
    }
    L->length =k;
}

void fun2(SqList *L, int x, int y)
{
    int i, j;
    for (i = 0; i < L->length; i++)
    {
        if (L->data[i] >= x && L->data[i] <= y)
        {
            for (j = i; j < L->length - 1; j++)
                L->data[j] = L->data[j + 1];
            L->length--;
        }
    }
}

void print(SqList *L)
{
    for (int i = 0; i < L->length; i++)
    {
        printf("%d ", L->data[i]);
    }
    printf("\n");
}

int main()
{
    int n,a[1000],x,y;
    scanf("%d %d %d", &n,&x,&y);
    for (int i = 0; i < n; i++)
        scanf("%d", &a[i]);
    SqList* L;
    InitList(L);
    CreatList(L,a,n);
    fun(L, x, y);
    print(L);
    return 0;
}

#include<stdio.h>
#include<time.h>
#pragma warning (disable:4996)

long long int factor1(int n)
{
    long long int ans = 0, total = 1;
    for (int i = 1; i <= n; i++)
    {
        total = 1;
        for (int j = 1; j <= i; j++)
        {
            total *= j;
        }
        ans += total;
    }
    return ans;
}

long long int factor2(int n)
{
    long long int ans = 0, total = 1;
    for (int i = 1; i <= n; i++)
    {
        total *= i;
        ans += total;
    }
    return ans;
}

int main()
{

    int n,begin,end;
    scanf("%d", &n);
    begin = clock();
    printf("1: %lld\n", factor1(n));
    end = clock();
    printf("time: %dms\n", end - begin);
    begin = clock();
    printf("2: %lld\n", factor2(n));
    end = clock();
    printf("time: %dms\n", end - begin);
    return 0;
}