Submission #42461

#	Time	Username	Problem	Language	Result	Execution time	Memory
42461		bash	Chessboard (IZhO18_chessboard)	C++14	Compilation error	0 ms	0 KiB

chessboard

/**
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*/
#include <bits/stdc++.h>

#define F first
#define S second
#define endl '\n'
#define pb push_back

#define int __int64

const long long MOD = 1e9 + 7;
const long long MAXN = 1e6 + 1;
using namespace std;

typedef long long ll;

long long readInt() {
    bool minus1 = false;
    long long result = 0;
    char ch;
    ch = getchar();
    while (true) {
        if (ch == '-') break;
        if (ch >= '0' && ch <= '9') break;
        ch = getchar();
    }
    if (ch == '-') minus1 = true; else result = ch-'0';
    while (true) {
        ch = getchar();
        if (ch < '0' || ch > '9') break;
        result = result*10 + (ch - '0');
    }
    if (minus1)
        return -result;
    else
        return result;                                              
}

int n, k;

pair <pair <int, int> ,pair <int, int> > a[MAXN];

int check(int v) {
	int kvad = v * v;
	int kolvo_1 = (n/v) / 2;
	int kolvo_2 = ((n/v)+1) / 2;
	int ans_1 = kvad * (kolvo_1 * kolvo_1 + kolvo_2 * kolvo_2); /// BLACK First
	int ans_2 = kvad * (kolvo_1 * kolvo_2 + kolvo_2 * kolvo_1); /// WHITE First
	
	for (int i = 1; i <= k; i++) {
		int x = a[i].first.first;                              
		int y = a[i].first.second;
		int num_x = (x + v - 1) / v;
		int num_y = (y + v - 1) / v;
		if ((num_x + num_y) % 2 == 0) {
			ans_1 --;
			ans_2 ++;
		} else {
			ans_1 ++;
			ans_2 --;
		}
	}
	return min(ans_1, ans_2);
}

 main() {
	#ifdef IZI_KATKA
	assert(freopen("input", "r", stdin));
    assert(freopen("output", "w", stdout));
    #endif
    n = readInt(), k = readInt();
	for (int i = 1; i <= k; i++) {
		a[i] = {{readInt(), readInt()}, {readInt(), readInt()}};		
	}
	check(1);                                                              
	int ans = 4e18;
	ans = min(check(1), ans);
	for (int i = 2; i * i <= n; i++) {
		if (n % i == 0) {
			ans = min(ans, check(i));
			ans = min(ans, check(n/i));						 
		}
	}
	cout << ans;
    return 0;
}

Compilation message (stderr)

chessboard.cpp:11:13: error: '__int64' does not name a type
 #define int __int64
             ^
chessboard.cpp:41:1: note: in expansion of macro 'int'
 int n, k;
 ^
chessboard.cpp:11:13: error: '__int64' was not declared in this scope
 #define int __int64
             ^
chessboard.cpp:43:13: note: in expansion of macro 'int'
 pair <pair <int, int> ,pair <int, int> > a[MAXN];
             ^
chessboard.cpp:11:13: error: '__int64' was not declared in this scope
 #define int __int64
             ^
chessboard.cpp:43:18: note: in expansion of macro 'int'
 pair <pair <int, int> ,pair <int, int> > a[MAXN];
                  ^
chessboard.cpp:43:21: error: template argument 1 is invalid
 pair <pair <int, int> ,pair <int, int> > a[MAXN];
                     ^
chessboard.cpp:43:21: error: template argument 2 is invalid
chessboard.cpp:11:13: error: '__int64' was not declared in this scope
 #define int __int64
             ^
chessboard.cpp:43:30: note: in expansion of macro 'int'
 pair <pair <int, int> ,pair <int, int> > a[MAXN];
                              ^
chessboard.cpp:11:13: error: '__int64' was not declared in this scope
 #define int __int64
             ^
chessboard.cpp:43:35: note: in expansion of macro 'int'
 pair <pair <int, int> ,pair <int, int> > a[MAXN];
                                   ^
chessboard.cpp:43:38: error: template argument 1 is invalid
 pair <pair <int, int> ,pair <int, int> > a[MAXN];
                                      ^
chessboard.cpp:43:38: error: template argument 2 is invalid
chessboard.cpp:43:40: error: template argument 1 is invalid
 pair <pair <int, int> ,pair <int, int> > a[MAXN];
                                        ^
chessboard.cpp:43:40: error: template argument 2 is invalid
chessboard.cpp:11:13: error: '__int64' does not name a type
 #define int __int64
             ^
chessboard.cpp:45:1: note: in expansion of macro 'int'
 int check(int v) {
 ^
chessboard.cpp:68:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  main() {
       ^
chessboard.cpp: In function 'int main()':
chessboard.cpp:73:5: error: 'n' was not declared in this scope
     n = readInt(), k = readInt();
     ^
chessboard.cpp:73:20: error: 'k' was not declared in this scope
     n = readInt(), k = readInt();
                    ^
chessboard.cpp:11:13: error: '__int64' was not declared in this scope
 #define int __int64
             ^
chessboard.cpp:74:7: note: in expansion of macro 'int'
  for (int i = 1; i <= k; i++) {
       ^
chessboard.cpp:74:18: error: 'i' was not declared in this scope
  for (int i = 1; i <= k; i++) {
                  ^
chessboard.cpp:77:9: error: 'check' was not declared in this scope
  check(1);                                                              
         ^
chessboard.cpp:11:13: error: '__int64' was not declared in this scope
 #define int __int64
             ^
chessboard.cpp:78:2: note: in expansion of macro 'int'
  int ans = 4e18;
  ^
chessboard.cpp:79:2: error: 'ans' was not declared in this scope
  ans = min(check(1), ans);
  ^
chessboard.cpp:80:11: error: expected ';' before 'i'
  for (int i = 2; i * i <= n; i++) {
           ^
chessboard.cpp:80:18: error: 'i' was not declared in this scope
  for (int i = 2; i * i <= n; i++) {
                  ^