题意描述思路AC代码#include<bits/stdc++.h>#define x first#define y second#define PB push_back#define m
image.pngAC代码#include<bits/stdc++.h>#define x first#define y second#define PB push_back#define mst(x,a) memset(x,a,sizeof(x))#define all(a) begin(a),end...