Submission #341195

#	Time	Username	Problem	Language	Result	Execution time	Memory
341195		IZhO_2021_I_want_Silver	Chessboard (IZhO18_chessboard)	C++14	0 / 100	1 ms	364 KiB

chessboard

#include <iostream>
#include <algorithm>
#include <vector>
#include <cmath>
#include <set>
#include <map>
#include <iomanip>
#include <cassert>
#include <stack>
#include <queue>
#include <deque>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>-

using namespace std;
//using namespace __gnu_pbds;

typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;

// template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
//  order_of_key (k) : Number of items strictly smaller than k .
//  find_by_order(k) : K-th element in a set (counting from zero).
#define sz(a) (int)a.size()
#define all(a) a.begin(), a.end()
#define pb push_back
#define ppb pop_back
#define mkp make_pair
#define F first
#define S second
#define lb lower_bound
#define ub upper_bound
#define show(a) cerr << #a <<" -> "<< a <<" "
#define nl cerr <<"\n"
//#define int ll

const int N = 2e5 + 5;
const int oo = 1e9 + 5;

int n, k, ans = oo;

void solve() {
    cin >> n >> k;
    for (int sz = 1; sz < n; ++sz) {
        if (n % sz == 0) {
            if ((n / sz) %  2 == 0) { ans = min(ans, n * sz); }
            else { ans = min(ans, n * sz + sz * sz * ((n / sz) / 2)); }
        }
    }
    cout << ans;
}

 main () {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int tests = 1;
	//cin >> tests;
	while (tests --) {
		solve();
	}
	return 0;
}
/*
    Just Chalish!
*/

Compilation message (stderr)

chessboard.cpp:54:8: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   54 |  main () {
      |        ^

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