（模拟+数组下标0开始）acwing 1219. 移动距离

1219. 移动距离

题目链接https://www.acwing.com/problem/content/1221/
题目：

#include
#include
#include
using namespace std;
int main(){
     
    int w,n,m;
    cin>>w>>n>>m;
    int x1,x2,y1,y2;
    n--;
    m--;
    x1=n/w;
    x2=m/w;
    if(x1%2==0) y1=n%w;
    else y1=w-n%w-1;
    if(x2%2==0) y2=m%w;
    else y2=w-m%w-1;
    //cout<
    //cout<
    printf("%d",abs(x2-x1)+abs(y2-y1));
    return 0;
}