Submission #1257126

#	Time	Username	Problem	Language	Result	Execution time	Memory
1257126		rpthirster	Sob (COCI19_sob)	C++20	110 / 110	337 ms	7296 KiB

sob

#include <bits/stdc++.h>
using namespace std;
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)

#define lo long long
#define fi first
#define se second

lo n,m,a;

bool used[1000005];


int main()
{   
    fio();

    cin >> n >> m;


    a = m;

    
    for(int i=n-1; i>=0; i--){
        while((i & a) != i){
            //cout << i << " " << a << endl; 
            a++;
        }
        cout << i << " " << a << endl;

        int temp = a+1;

        while((a != m) && (i != 0)){
            cout << --i << " " << --a << endl;
        }

        a = temp;
        m = temp;

    }
    
    return 0; 
}

• Subtask 1: 10 / 10
• Subtask 2: 29 / 29
• Subtask 3: 39 / 39
• Subtask 4: 32 / 32