C Primer Plus 第六版第十章编程练习答案

部分习题代码丢失，需要请联系博主。
编译环境：Visual Studio 2017

#include<stdio.h>
#include<stdlib.h>
//2.
void copy_arr(double target1[], double source[], int n);
void copy_ptr(double *p, double *pp, int n);
void copy_ptrs(double *start, double source[], double *end);
int main()
{
    int i;
    double source[5] = { 1.1,2.2,3.3,4.4,5.5 };
    double target1[5];
    double target2[5];
    double target3[5];
    double *p, *pp;
    double *start;
    p = target2;
    pp = source;
    start = target3;
    copy_arr(target1, source, 5);
    copy_ptr(p, pp, 5);
    copy_ptrs(start, source, source+5);

    printf("target1=");
    for (i = 0; i < 5; i++)
        printf("%lf ", target1[i]);
    printf("\n");

    printf("target2=");
    for (i = 0; i < 5; i++)
        printf("%lf ", target2[i]);
    printf("\n");

    printf("target3=");
    for (i = 0; i < 5; i++)
        printf("%lf ", target3[i]);

    system("pause");
    return 0;
}
void copy_arr(double target1[], double source[], int n)
{
    int i;
    for (i = 0; i < n; i++)
        target1[i] = source[i];
    return 0;   
}
void copy_ptr(double *p, double *pp, int n)
{
    int i;
    for (i = 0; i < n; i++)
        *(p+i) = *(pp+i);
    return 0;
}
void copy_ptrs(double *start, double source[], double *end)
{

    while (source<end)
    {
       *start = *source;
       start++;
       source++;
    }

    return 0;
}
//3.
int maxx(int num[], int n);
int main()
{
    int i;
    int num[10];
    for (i = 0; i < 10; i++)
        scanf("%d", &num[i]);
    i = maxx(num, sizeof num / sizeof num[0