#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<ll, ll> pii;
typedef pair<ld, ld> pld;
ll n;
ll a[1000009], b[1000009], dif[1000009];
ll in[1000009], out[1000009];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
//freopen("in.txt", "r", stdin);
//freopen("out.txt", "w", stdout);
cin >> n;
for(ll i = 0; i < n; ++i)
cin >> a[i] >> b[i];
for(ll i = 0; i < n; ++i)
dif[i] = a[i]-b[i];
for(ll i = n-1; i >= 0; --i){
in[i] = out[i]*2-dif[i];
out[(i-1+n)%n] = in[i];
}
for(ll i = n-1; i >= 0; --i){
in[i] = out[i]*2-dif[i];
out[(i-1+n)%n] = in[i];
}
for(ll i = 0; i < n; ++i)
if(out[(i-1+n)%n] != in[i]){
cout << "No\n";
return 0;
}
cout << "Yes\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
5 ms |
384 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |