CSES - Aalto Competitive Programming 2026 - wk5 - Wed

Submission details
Task:	Coloring cube
Sender:	aalto26ew_007
Submission time:	2026-09-30 16:55:45 +0300
Language:	C++ (C++20)
Status:	READY
Result:	ACCEPTED

Test results
test	verdict	time
#1	ACCEPTED	0.00 s	details
#2	ACCEPTED	0.00 s	details
#3	ACCEPTED	0.00 s	details
#4	ACCEPTED	0.00 s	details
#5	ACCEPTED	0.01 s	details
#6	ACCEPTED	0.01 s	details
#7	ACCEPTED	0.01 s	details
#8	ACCEPTED	0.02 s	details
#9	ACCEPTED	0.03 s	details
#10	ACCEPTED	0.03 s	details

Code

#include <bits/stdc++.h>
using namespace std;

#define all(x)  begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define sz(x)   (int)(x).size()                                 // signed size: avoids the unsigned .size() wrap bug

using ll  = long long;
using pii = pair<int,int>;
using vi  = vector<int>;

#ifdef LOCAL                                                    // compile with -DLOCAL to enable, silent on the judge
#define dbg(...) cerr << "[" << #__VA_ARGS__ << "] = ", dbg_out(__VA_ARGS__)
template<class T> void dbg_out(T x) { cerr << x << '\n'; }
template<class T, class... R> void dbg_out(T x, R... r) { cerr << x << ", "; dbg_out(r...); }
#else
#define dbg(...)
#endif

int main() {
    cin.tie(0)->sync_with_stdio(0);                             // never mix with scanf/printf after this
    int n; cin >> n; 
    // int p; cin >> p; 
    // // int n,m; cin >> n >> m; 
    // // vi a(n); for (auto &x : a) cin >> x;

    if (n==2){
        cout << "R G\nB R\n\nB R\nG B\n";
        return 0;
    }
    
    // for (int n = 3; n < 100; n++)
    // {
        /* code */

    int a =0, b=0, c=0;

    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
        {
            for (int k = 0; k < n; k++)
            {   
                char chr;

                if ((k+j+i) % 2 == 0){
                    
                    // cout << "ok";
                    if (a >= n*n*n/6.0){
                        chr = 'B';
                        c ++;
                    } else {
                        chr = 'R';
                        a ++;
                    }

                } else {

                    if (b >= n*n*n/3.0){
                        chr = 'R';
                        a ++;
                    } else {
                        chr = 'G';
                        b ++;
                    }
                }
                // cout << a << " " << b << " "<< c <<  "\n";
                cout << chr << " \n"[k==n-1];
                
            }
        }
        
        cout << "\n";



    }
        

    //     if (abs(min(a,min(b,c)) - max(a,max(b,c))) > 1){
    //         cout << a << " " << b << " "<< c <<  "  fail \n";
    //         return 0;
    //     }
    // }


    // cout << ;
    return 0;
}

Test details

Test 1

Verdict: ACCEPTED

input
`3` view save

correct output
`R G B G B R B R G G B R ...` view save

user output
`R G R G R G R G R G B G ...` view save

Test 2

Verdict: ACCEPTED

input
`5` view save

correct output
`R G B R G G B R G B B R G B R R G B R G G B R G B ...` view save

user output
`R G R G R G R G R G R G R G R G R G R G R G R G R ...` view save

Test 3

Verdict: ACCEPTED

input
`6` view save

correct output
`R G B R G B G B R G B R B R G B R G R G B R G B G B R G B R ...` view save

user output
`R G R G R G G R G R G R R G R G R G G R G R G R R G R G R G ...` view save

Test 4

Verdict: ACCEPTED

input
`10` view save

correct output
`R G B R G B R G B R G B R G B R G B R G B R G B R G B R G B R G B R G B R G B R G B R G B R G B R G ...` view save

user output
`R G R G R G R G R G G R G R G R G R G R R G R G R G R G R G G R G R G R G R G R R G R G R G R G R G ...` view save

Test 5

Verdict: ACCEPTED

input
`50` view save

correct output
`R G B R G B R G B R G B R G B ...` view save

user output
`R G R G R G R G R G R G R G R ...` view save

Test 6

Verdict: ACCEPTED

input
`53` view save

correct output
`R G B R G B R G B R G B R G B ...` view save

user output
`R G R G R G R G R G R G R G R ...` view save

Test 7

Verdict: ACCEPTED

input
`63` view save

correct output
`R G B R G B R G B R G B R G B ...` view save

user output
`R G R G R G R G R G R G R G R ...` view save

Test 8

Verdict: ACCEPTED

input
`95` view save

correct output
`R G B R G B R G B R G B R G B ...` view save

user output
`R G R G R G R G R G R G R G R ...` view save

Test 9

Verdict: ACCEPTED

input
`99` view save

correct output
`R G B R G B R G B R G B R G B ...` view save

user output
`R G R G R G R G R G R G R G R ...` view save

Test 10

Verdict: ACCEPTED

input
`100` view save

correct output
`R G B R G B R G B R G B R G B ...` view save

user output
`R G R G R G R G R G R G R G R ...` view save

Aalto Competitive Programming 2026 - wk5 - Wed

Coloring cube

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Tasks

Submissions (aalto26ew_007)