Submission #721316

#	Time	Username	Problem	Language	Result	Execution time	Memory
721316		vjudge1	Uzastopni (COCI17_uzastopni)	C++17	56 / 80	260 ms	65536 KiB

uzastopni

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);

    ll n; cin >> n;

    ll k = n/2+1;
    
    if(k >= 8*1e7){
        return 0;
    }
    
    vector<ll> table(k+1);
    table[1] = 1;
    for(ll i = 2; i <= k; i++){
        if(table[i-1] == n){
           cout << 1 <<" "<< i-1 <<"\n";
        }
        table[i] = ((i*(i+1))/2);
    }
    ll pos = upper_bound(table.begin(), table.end(), n) - table.begin();

    for(ll i = pos; i <= k; i++){
        if(binary_search(table.begin(), table.end(), table[i]-n)){
            cout << lower_bound(table.begin(), table.end(), table[i]-n)-table.begin()+1 <<" "<< i <<"\n";
        }
    }






}

• Subtask 1: 56 / 80