Coloring cube

#include <iostream>
#include <algorithm>
#include <queue>
using namespace std;

void task5(){
    int n;
    cin >> n;
    vector<int> nums(n);

    vector<int> daysNeeded(n,0);
    for(int i = 0; i < n; i++){
        cin >> nums[i];
    }

    for(int i = 0; i < n; i++){
        for(int j = i; j < n; j += nums[i]){
            ++daysNeeded[j];
        }
    }

    for(int i = 0; i < n; i++){
        cout << daysNeeded[i] << " ";
    }
}

void task4(){
    int n; 
    cin >> n;

    for(int i = 0; i < n; i++){
        for(int j = 0; j < n; j++){
            for(int k = 0; k < n; k++){
                if((k + j + i) % 3 == 0) 
                   cout << "R" << " ";
                else if((k+j +i) % 3 == 1)
                    cout << "G" << " ";
                else
                    cout << "B" << " ";
            }
            cout << endl;
        }
    }
}
int main() {
    

task4();
    return 0;

}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED