Question

我有两个数组：

数组1：

<dependency>

数组2：

e[0] = 21.145;
e[1] = 17.152;
e[2] = 15.541;
e[3] = 0.095;
e[4] = -10.515;

我需要合并并订购这些数组。这是我的代码，但它正在为逆序（作为升序）工作。我希望有关降序数组合并的帮助。我尝试更换操作员，但它没有工作。我错在哪里？

double *f = new double[5];
f[0] = 18.458;
f[1] = 11.542;
f[2] = 7.152;
f[3] = 1.243;
f[4] = -12.758;

Answer 1

使用正确的符号，代码可以正常工作：

#include <iostream>

void mergeArrays(double * arr1, double  * arr2, int n1, int n2, double * arr3)
{
    int i = 0, j = 0, k = 0;

    while (i<n1 && j <n2)
    {
        if (arr1[i] > arr2[j])
            arr3[k++] = arr1[i++];
        else
            arr3[k++] = arr2[j++];
    }
    while (i < n1)
        arr3[k++] = arr1[i++];

    while (j < n2)
        arr3[k++] = arr2[j++];
}

int main()
{
    double *e = new double[5];
    e[0] = 21.145;
    e[1] = 17.152;
    e[2] = 15.541;
    e[3] = 0.095;
    e[4] = -10.515;
    double *f = new double[5];
    f[0] = 18.458;
    f[1] = 11.542;
    f[2] = 7.152;
    f[3] = 1.243;
    f[4] = -12.758;
    double *g = new double[10];
    mergeArrays(e,f,5,5,g);
    for(int i=0;i<10;i++)
        std::cout<<g[i]<<std::endl;
    delete e;
    delete f;
    delete g;

    return 0;
}

结果：

C ++ - 合并两个按降序排序的排序数组

1 个答案: