제출 #994745

#제출 시각아이디문제언어결과실행 시간메모리
994745hmm789Portal (BOI24_portal)C++14
10 / 100
15 ms2020 KiB
#include <bits/stdc++.h> using namespace std; #define int long long #define MOD 1000000007 int gcd(int a, int b) { if(a > b) swap(a, b); if(a == 0) return b; else return gcd(a, b%a); } int32_t main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n; cin >> n; int x[n], y[n], gx = 0, gy = 0; for(int i = 0; i < n; i++) cin >> x[i] >> y[i]; for(int i = 1; i < n; i++) { gx = gcd(abs(x[i]-x[i-1]), gx); gy = gcd(abs(y[i]-y[i-1]), gy); } if(gx*gy == 0) cout << -1; else cout << gx*gy; }
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