Submission #1314627

#	Time	Username	Problem	Language	Result	Execution time	Memory
1314627		arman.khachatryan	Gift (IZhO18_nicegift)	C++20	0 / 100	80 ms	9124 KiB

nicegift

#include <bits/stdc++.h>
using namespace std;
const int N=2e6+10;
int a[N];
int main() {
    int n, k;
    cin>>n>>k;
    for(int i=0; i<n; i++){
        cin>>a[i];
    }
    int g;
    for(int i=1; i<=k; i++){
        if(n%i==0 && k%i==0){
            g=i;
        }
    }
    if((n*a[0])%k!=0){
        cout<<-1;
        return 0;
    }
    cout<<n/g<<'\n';
    for(int i=0; i<n/g; i++){
        cout<<a[0]*g/k<<" ";
        for(int j=0; j<k; j++){
            cout<<(i*g+j)%n+1LL<<" ";
        }
        cout<<'\n';
    }
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 12
• Subtask 4: 0 / 19
• Subtask 5: 0 / 51