1020A - New Building for SIS - CodeForces Solution

#include<iostream>
#include<cmath>
#include<algorithm>
#include<climits>
#define ll long long
using namespace std;
int main(){
    int n, h, a, b, k;
    cin>>n>>h>>a>>b>>k;
    while(k--){
        int floor[4];
        for(int i=0; i<4; i++){
            cin>>floor[i];
        }
        if(floor[0]==floor[2]){
            cout<<abs(floor[3]-floor[1])<<endl;
        }
        else{
            int count=abs(floor[2]-floor[0]);
            if(floor[1]>=a && floor[1]<=b){
                cout<<count+abs(floor[3]-floor[1])<<endl;
            }
            else if(floor[1]<a){
                cout<<abs(floor[1]-a)+count+abs(a-floor[3])<<endl;
            }
            else if(floor[1]>b){
                cout<<abs(floor[1]-b)+count+abs(floor[3]-b)<<endl;
            }
        }
    }
    return 0;
}