Submission #855842

#	Time	Username	Problem	Language	Result	Execution time	Memory
855842		Trisanu_Das	Chessboard (IZhO18_chessboard)	C++17	Compilation error	0 ms	0 KiB

chessboard

#include <iostream>
#include <algorithm>
#include <climits>
#define int long long
using namespace std;
 
int f(int s, int a) {
	a %= s * 2;
	return min(a, s * 2 - a);
}
 
int main() {
	int x1[N], y1[N], x2[N], y2[N];
	int n, k, temp, ans;
	cin >> n >> k;
	for (i = 0; i < k; i++){
      cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      --x1[i]; --y1[i];
    }
	ans = LLONG_MAX;
	for (i = 1; i < n; i++)
		if (n % i == 0) {
			k = (n / i) * (n / i) / 2 * i * i;
			for (i = 0; i < n; i++) temp += (f(i, x2[i]) - f(i, x1[i])) * (f(i, y2[i]) - f(i, y1[i]));
			ans = min(ans, min(temp, n * n - temp));
		}
	cout << ans << '\n';
}

Compilation message (stderr)

cc1plus: error: '::main' must return 'int'
chessboard.cpp: In function 'int main()':
chessboard.cpp:13:9: error: 'N' was not declared in this scope
   13 |  int x1[N], y1[N], x2[N], y2[N];
      |         ^
chessboard.cpp:16:7: error: 'i' was not declared in this scope
   16 |  for (i = 0; i < k; i++){
      |       ^
chessboard.cpp:17:14: error: 'x1' was not declared in this scope
   17 |       cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |              ^~
chessboard.cpp:17:23: error: 'y1' was not declared in this scope
   17 |       cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                       ^~
chessboard.cpp:17:32: error: 'x2' was not declared in this scope
   17 |       cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                                ^~
chessboard.cpp:17:41: error: 'y2' was not declared in this scope
   17 |       cin >> x1[i] >> y1[i] >> x2[i] >> y2[i];
      |                                         ^~
chessboard.cpp:21:7: error: 'i' was not declared in this scope
   21 |  for (i = 1; i < n; i++)
      |       ^
chessboard.cpp:24:42: error: 'x2' was not declared in this scope
   24 |    for (i = 0; i < n; i++) temp += (f(i, x2[i]) - f(i, x1[i])) * (f(i, y2[i]) - f(i, y1[i]));
      |                                          ^~
chessboard.cpp:24:56: error: 'x1' was not declared in this scope
   24 |    for (i = 0; i < n; i++) temp += (f(i, x2[i]) - f(i, x1[i])) * (f(i, y2[i]) - f(i, y1[i]));
      |                                                        ^~
chessboard.cpp:24:72: error: 'y2' was not declared in this scope
   24 |    for (i = 0; i < n; i++) temp += (f(i, x2[i]) - f(i, x1[i])) * (f(i, y2[i]) - f(i, y1[i]));
      |                                                                        ^~
chessboard.cpp:24:86: error: 'y1' was not declared in this scope
   24 |    for (i = 0; i < n; i++) temp += (f(i, x2[i]) - f(i, x1[i])) * (f(i, y2[i]) - f(i, y1[i]));
      |                                                                                      ^~