#include <algorithm>
#include <bitset>
#include <cassert>
#include <chrono>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <deque>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <limits>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <ratio>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#include <climits>
#define ll long long
#define ld long double
#define mp make_pair
#define pb push_back
#define in insert
#define vll vector<ll>
#define endl "\n"
#define pll pair<ll,ll>
#define f first
#define s second
#define FOR(i,a,b) for(int i=(a),_b=(b); i<=_b; i++)
#define int ll
#define sz(x) (ll)x.size()
#define all(x) (x.begin(),x.end())
using namespace std;
const ll INF = 1e12;
const ll N =(1e6+5); // TODO : change value as per problem
const ll MOD = 1e9+7;
int a[N],b[N];
int n;
int nxt(int x){
if(x == n) return 1;
return x+1;
}
void solve(){
cin >> n;
for(int i = 1;i <= n;i++){
cin >> a[i] >> b[i];
}
for(int i = 1;i <= n;i++){
int ta[n+1],tb[n+1];
for(int j = 1;j<=n;j++) ta[j]= a[j],tb[j] = b[j];
int operations = 1;
int cur = i;
while(operations <= 1e5){
bool ok = true;
for(int j = 1;j<=n;j++)
ok &= (ta[j] == tb[j]);
if(ok){
cout<<"Yes\n";
return;
}
int k = nxt(cur);
if(ta[cur] > tb[cur]){
int x = ta[cur]-tb[cur];
if(x&1) x--;
ta[cur] -= x;
ta[k] += (x/2);
}
cur = k;
operations++;
}
}
cout<<"No\n";
}
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(NULL);
// freopen(".in","r",stdin);freopen(".out","w",stdout);
ll tt=1;
// cin >> tt;
while(tt--){
solve();
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
384 KB |
Output is correct |
2 |
Correct |
0 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
0 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
9 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
384 KB |
Output is correct |
2 |
Correct |
0 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
0 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
9 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
6 ms |
384 KB |
Output is correct |
2 |
Correct |
0 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
0 ms |
384 KB |
Output is correct |
5 |
Correct |
0 ms |
384 KB |
Output is correct |
6 |
Correct |
0 ms |
384 KB |
Output is correct |
7 |
Correct |
0 ms |
384 KB |
Output is correct |
8 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
9 |
Halted |
0 ms |
0 KB |
- |