AcWing 1812. Square pasture (enumeration)

subject ：1812. Square pasture

Answer key ： Map these two rectangles to x Axis and y On the shaft , Find the maximum interval , Then multiply the length of the two intervals .

#include<bits/stdc++.h>
#define x first
#define y second
using namespace std;
typedef long long LL;
typedef pair<int ,int> PII;
const int N=1e5+10;
const int mod=100000007;

int main(){
    
    int a[2][4];
    int b,c,d,e;
    b=20,c=0,d=20,e=0;
    for(int i=0;i<2;i++){
    
        cin>>a[i][0]>>a[i][1]>>a[i][2]>>a[i][3];
        b=min(a[i][0],b);
        b=min(a[i][2],b);
        c=max(a[i][0],c);
        c=max(a[i][2],c);
        d=min(a[i][1],d);
        d=min(a[i][3],d);
        e=max(a[i][1],e);
        e=max(a[i][3],e);
    }
    int t=max(0,c-b);
    t=max(t,max(0,e-d));
    cout<<t*t;
    return 0;
}