Submission #1985518

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Source Code Expand

 
#include <bits/stdc++.h>
using namespace std;
using vi=vector<int>;
using vvi=vector<vi>;
using vs=vector<string>;
using msi=map<string,int>;
using mii=map<int,int>;
using pii=pair<int,int>;
using vlai=valarray<int>;
using ll=long long;
#define rep(i,n) for(int i=0;i<n;i++)
#define range(i,s,n) for(int i=s;i<n;i++)
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define fs first
#define sc second
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define INF 1e9
#define EPS 1e-9
 
constexpr ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
constexpr ll lcm(ll a,ll b){return a*b/gcd(a,b);}

int main(){
	ll a,b,c,d;
	cin>>a>>b>>c>>d;
	a=abs(a-c);
	b=abs(b-d);
	if(a>b)swap(a,b);
	ll r=gcd(a,b);
	a/=r,b/=r;
	cout<<(a==0?0:(a+b-1)*r)<<endl;
	return 0;
}

Submission Info

Judge Result