题解 | 数组元素处理

#include <iostream>
using namespace std;


void func(int* p, int n);

int main() {

    int arr[6] = { 0 };
    for (int i = 0; i < 6; i++) {
        cin >> arr[i];
    }

    func(arr, 6);

    for (int i = 0; i < 6; i++) {
        if (i == 5) {
            cout << arr[i] << endl;
        } else {
            cout << arr[i] << " ";
        }
    }

    return 0;
}

void func(int* p, int n) {

   int id = 0;
   for(int i=0;i<n;i++)      
   {
    if(p[i]!=0)
    {
        int temp = p[i];
        p[i] = p[id];
        p[id] = temp;				//模仿前面大佬的代码，这样写更容易理解
        id++;						//大佬代码：p[id++] = temp;
   }
   }
}