Submission #335329

#	Time	Username	Problem	Language	Result	Execution time	Memory
335329		limabeans	Chessboard (IZhO18_chessboard)	C++17	8 / 100	1 ms	492 KiB

chessboard

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

template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl





using ll = long long;

const ll inf = 1e18;
const int maxn = 1e6 + 5;


ll n,k;


int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);  cout.tie(0);

    cin>>n>>k;
    assert(!k);

    ll res = inf;
    
    for (int i=1; i<n; i++) {
	if (n%i==0) {
	    ll black = (n/i)*(n/i)/2;
	    ll cur = i*i*black;
	    res=min(res,cur);
	}
    }


    cout<<res<<endl;    
    return 0;
}

• Subtask 1: 8 / 8
• Subtask 2: 0 / 8
• Subtask 3: 0 / 15
• Subtask 4: 0 / 16
• Subtask 5: 0 / 23
• Subtask 6: 0 / 30