#include<bits/stdc++.h>
/*
#pragma optimize ("g",on)
#pragma GCC optimize("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
*/
//01001101 01100001 01101011 01101000 01100001 01100111 01100001 01111001
using namespace std;
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define ll long long
#define pb push_back
#define sz(a) a.size()
#define nl '\n'
#define popb pop_back()
#define ld double
#define ull unsigned long long
#define ff first
#define ss second
#define fix fixed << setprecision
#define pii pair<int, int>
#define E exit (0)
#define int long long
const int inf = 1e9, N = 2e5 + 1, mod = 998244353;
vector<pii> dir = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};
main() {
//freopen("cowrect.in", "r", stdin);
//freopen("cowrect.out", "w", stdout);
ios_base::sync_with_stdio(NULL);
cin.tie(NULL);
int n, k;
cin >> n >> k;
int cnt0 = 0, cnt1 = 0;
for (int i = 1; i <= k; i++) {
int x1, y1, x2, y2;
cin >> x1 >> y1 >> x2 >> y2;
if (x1 % 2 == y1 % 2) {
cnt0++;
}else {
cnt1++;
}
}
if (k == 0) {
int mn = inf;
for (int val = 1; val < n; val++) {
if (n % val) continue;
int x = n * n / val / val;
mn = min(mn, x / 2 * val * val);
}
cout << mn;
}else {
cout << min(cnt0 + n * n / 2 - cnt1, cnt1 + n * n / 2 + 1 - cnt0);
}
}
Compilation message
chessboard.cpp:36:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
36 | main() {
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
312 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
19 ms |
368 KB |
Output is correct |
2 |
Correct |
6 ms |
580 KB |
Output is correct |
3 |
Correct |
14 ms |
1188 KB |
Output is correct |
4 |
Correct |
19 ms |
1072 KB |
Output is correct |
5 |
Correct |
18 ms |
1480 KB |
Output is correct |
6 |
Correct |
10 ms |
1088 KB |
Output is correct |
7 |
Correct |
3 ms |
444 KB |
Output is correct |
8 |
Correct |
12 ms |
1088 KB |
Output is correct |
9 |
Correct |
32 ms |
2376 KB |
Output is correct |
10 |
Correct |
24 ms |
1444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
19 ms |
368 KB |
Output is correct |
2 |
Correct |
6 ms |
580 KB |
Output is correct |
3 |
Correct |
14 ms |
1188 KB |
Output is correct |
4 |
Correct |
19 ms |
1072 KB |
Output is correct |
5 |
Correct |
18 ms |
1480 KB |
Output is correct |
6 |
Correct |
10 ms |
1088 KB |
Output is correct |
7 |
Correct |
3 ms |
444 KB |
Output is correct |
8 |
Correct |
12 ms |
1088 KB |
Output is correct |
9 |
Correct |
32 ms |
2376 KB |
Output is correct |
10 |
Correct |
24 ms |
1444 KB |
Output is correct |
11 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
312 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
19 ms |
368 KB |
Output is correct |
10 |
Correct |
6 ms |
580 KB |
Output is correct |
11 |
Correct |
14 ms |
1188 KB |
Output is correct |
12 |
Correct |
19 ms |
1072 KB |
Output is correct |
13 |
Correct |
18 ms |
1480 KB |
Output is correct |
14 |
Correct |
10 ms |
1088 KB |
Output is correct |
15 |
Correct |
3 ms |
444 KB |
Output is correct |
16 |
Correct |
12 ms |
1088 KB |
Output is correct |
17 |
Correct |
32 ms |
2376 KB |
Output is correct |
18 |
Correct |
24 ms |
1444 KB |
Output is correct |
19 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
20 |
Halted |
0 ms |
0 KB |
- |