Urkupillit

#include <bits/stdc++.h>


#define ll long long

using namespace std;


int main()
{
    ll n, k, sum=0, add=0; cin >> n >> k;
    if(n==1)cout << 1;
    else if(k==0){
        for(int i = 1; i <= n; ++i){
            cout << i << " ";
        }
    }
    else{
        if(k<n){
            while(k>=sum){
        ++add;
        sum+=add;
    }
    sum -= add;
    for(int i = add; i > 0; --i){
        cout << i << " ";
    }
    if(!(k-sum)){
        for(int i = add+1; i <= n; ++i){
            cout << i << " ";
        }
    }
    else{
        for(int i = add + 2; i <= add + 1 + (k-sum); ++i){
            cout << i << " ";
        }
        cout << add+1 << " ";
        for(int i = add + 2 + k - sum; i <= n; ++i){
            cout << i << " ";
        }
    }
    }
    else{
        cout << n << " "; //we have n - 1 things
        k -= (n-1); n-=1;
        while(k>=sum){
        ++add;
        sum+=add;
    }
    sum -= add;
    for(int i = add; i > 0; --i){
        cout << i << " ";
    }
    if(!(k-sum)){
        for(int i = add+1; i <= n; ++i){
            cout << i << " ";
        }
    }
    else{
        for(int i = add + 2; i <= add + 1 + (k-sum); ++i){
            cout << i << " ";
        }
        cout << add+1 << " ";
        for(int i = add + 2 + k - sum; i <= n; ++i){
            cout << i << " ";
        }
    }
    }
    }




    return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 1

Verdict: ACCEPTED

Test 3

Group: 1

Verdict: ACCEPTED

Test 4

Group: 1

Verdict: ACCEPTED

Test 5

Group: 1

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: ACCEPTED

Test 10

Group: 2

Verdict: WRONG ANSWER

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED