C++ 代码

#include<bits/stdc++.h>
using namespace std;

int main()
{
    int w,m,n;
    int x1,x2,y1,y2;
    cin >> w >> m >> n;
    m--;
    n--;
    x1 = m / w;
    x2 = n / w;
    y1 = m % w;
    y2 = n % w;
    if(x1%2 != 0)
        y1 = w - 1 - y1;
    if(x2%2 != 0)
        y2 = w - 1 - y2;
    cout << abs(x1-x2) + abs(y1-y2);
    return 0;
}