oj.uz

Submission #917736

# Submission time Handle Problem Language Result Execution time Memory
917736 2024-01-28T17:00:06 Z dilanyan Chessboard (IZhO18_chessboard) C++17
39 / 100
 58 ms 1884 KB 
//-------------dilanyan------------\\ 
 
#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
#include<stdio.h>
using namespace std;
 
//------------------KarginDefines--------------------\\ 
 
#define ll long long
#define pb push_back
#define all(u) (u).begin(), (u).end()
#define pqueue priority_queue
#define upper upper_bound
#define lower lower_bound
#define umap unordered_map
#define uset unordered_set
#define Kargin ios_base::sync_with_stdio(false);cin.tie(NULL);
#define Usaco freopen(".in", "r", stdin); freopen(".out", "w", stdout);
 
 
//-------------------KarginConstants------------------\\ 
 
const ll mod = 1000000007;
const ll inf = 1e9 + 15;
 
//-------------------KarginCode------------------------\\ 
 
const int N = 100005;
ll x[N], y[N];

void KarginSolve() {
    ll n, k;
    cin >> n >> k;
    ll sq = sqrt(n);
    vector<ll> div;
    for (ll i = 1;i <= sq;i++) {
        if (n % i == 0) {
            div.pb(i);
            if (i * i != n) div.pb(n / i);
        }
    }
    for (int i = 0;i < k;i++) cin >> x[i] >> y[i] >> x[i] >> y[i];
    ll ans = inf;
    for (ll d : div) {
        if (d == n) continue;
        ll c = (n * n) / (d * d);
        ll fw = c / 2, fb = (c + 1) / 2;
        fw *= d * d, fb *= d * d;
        for (int i = 0;i < k;i++) {
            int dx = (x[i] + d - 1) / d, dy = (y[i] + d - 1) / d;
            if (dx & 1) {
                if (dy & 1) fw++, fb--;
                else fw--, fb++;
            }
            else {
                if (dy & 1) fw--, fb++;
                else fw++, fb--;
            }
        }
        ans = min(ans, min(fw, fb));
    }
    cout << ans << '\n';
}
 
int main() {
    //Usaco
    Kargin;
    int test = 1;
    //cin >> test;
    while (test--) {
        KarginSolve();
    }
    return 0;
}

Compilation message

chessboard.cpp:1:1: warning: multi-line comment [-Wcomment]
    1 | //-------------dilanyan------------\\
      | ^
chessboard.cpp:8:1: warning: multi-line comment [-Wcomment]
    8 | //------------------KarginDefines--------------------\\
      | ^
chessboard.cpp:22:1: warning: multi-line comment [-Wcomment]
   22 | //-------------------KarginConstants------------------\\
      | ^
chessboard.cpp:27:1: warning: multi-line comment [-Wcomment]
   27 | //-------------------KarginCode------------------------\\
      | ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 1372 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 428 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 428 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 7 ms 860 KB Output is correct
17 Correct 20 ms 1736 KB Output is correct
18 Correct 23 ms 1880 KB Output is correct
19 Correct 52 ms 1624 KB Output is correct
20 Correct 58 ms 1884 KB Output is correct
21 Correct 17 ms 1628 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 13 ms 1116 KB Output is correct
24 Correct 27 ms 1832 KB Output is correct
25 Correct 3 ms 600 KB Output is correct
26 Correct 14 ms 1116 KB Output is correct
27 Correct 18 ms 1372 KB Output is correct
28 Correct 23 ms 1816 KB Output is correct
29 Correct 7 ms 860 KB Output is correct
30 Correct 1 ms 508 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 1372 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 17 ms 1372 KB Output isn't correct
10 Halted 0 ms 0 KB -