oj.uz

Submission #515593

# Submission time Handle Problem Language Result Execution time Memory
515593 2022-01-19T10:13:26 Z Theo830 Cat (info1cup19_cat) C++17
3.75 / 100
 708 ms 9100 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e9+7;
const ll MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<ii,ll>
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
int main(void){
    ll t;
    cin>>t;
    while(t--){
        ll n;
        cin>>n;
        ll arr[n];
        vll a[2];
        f(i,0,n){
            cin>>arr[i];
            arr[i] = min(arr[i],n + 1 - arr[i]);
            a[i >= n/2].pb(arr[i]);
        }
        reverse(all(a[1]));
        if(a[0] == a[1]){
            cout<<"0 0\n";
        }
        else{
            cout<<"-1\n";
        }
    }
}

Subtask #1
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 204 KB Wrong answer
2 Halted 0 ms 0 KB -

Subtask #2
1.5 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 204 KB Correctly distinguished between possibility and impossibility
2 Correct 36 ms 648 KB Correctly distinguished between possibility and impossibility

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 204 KB Wrong answer
2 Halted 0 ms 0 KB -

Subtask #4
2.25 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 204 KB Correctly distinguished between possibility and impossibility
2 Correct 36 ms 648 KB Correctly distinguished between possibility and impossibility
3 Correct 708 ms 7416 KB Correctly distinguished between possibility and impossibility
4 Correct 693 ms 9100 KB Correctly distinguished between possibility and impossibility
5 Correct 672 ms 8636 KB Correctly distinguished between possibility and impossibility

Subtask #5
0.0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 204 KB Wrong answer
2 Halted 0 ms 0 KB -