#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int n,m,sx,sy,ans[410][410];
bool vis[410][410];
int nx[8] = {-2,-1,1,2,2,1,-1,-2},ny[8] = {1,2,2,1,-1,-2,-2,-1};
struct Node{
	int x,y,dep;
};
queue<Node> q;
int read(){
	int x = 0,w = 1;
	char ch = getchar();
	while(ch < '0' || ch > '9'){
		if(ch == '-')	w = -w;
		ch = getchar();
	}
	while(ch >= '0'&& ch <= '9'){
		x = x * 10 + ch - '0';
		ch = getchar();
	}
	return w * x;
}
void print(int x){
	if(x < 0) putchar('-'),x = -x;
	if(x > 9) print(x / 10);
	putchar(x % 10 + '0');
}
int main(){
	cin >> n >> m >> sx >> sy;
	for(int i = 1;i <= n;i++){
		for(int j = 1;j <= m;j++){
			ans[i][j] = -1;
			vis[i][j] = false;
		}
	}
	q.push({sx,sy,0});
	while(!q.empty()){
		int kx = q.front().x,ky = q.front().y,d = q.front().dep;
		q.pop();
		ans[kx][ky] = d,vis[kx][ky] = true;
		for(int i = 0;i < 8;i++){
			int x = kx = nx[i],y = ky + ny[i];
			//cout << x << " " << y << " " << vis[x][y] << endl;
			if(x >= 1 && y >= 1 && x <= n && y <= m) if(!vis[x][y]) q.push({x,y,d + 1});
		}
	}
	for(int i = 1;i <= n;i++){
		for(int j = 1;j <= m;j++){
			cout << ans[i][j] << " ";
		}
		cout << endl;
	}
	return 0;
} 

坐标移动自查过没有问题，但不知道为什么从第三次跳跃就变成“1 3”而不是设置的“2 3”了。