逆向考虑即可解决
#include<iostream>
using namespace std;
const int maxn= 100000 +5;
int a[maxn][4];//0-x,1-y,2-x-length,3-y-length
int main(){
int n,flag=0;
cin>>n;
for(int i=1;i...
逆向考虑即可解决
#include<iostream>
using namespace std;
const int maxn= 100000 +5;
int a[maxn][4];//0-x,1-y,2-x-length,3-y-length
int main(){
int n,flag=0;
cin>>n;
for(int i=1;i...