Submission #525977

#	Time	Username	Problem	Language	Result	Execution time	Memory
525977		tkwiatkowski	Quality Of Living (IOI10_quality)	C++17	Compilation error	0 ms	0 KiB

quality

/*
	Zadanie: 
	Autor: Tomasz Kwiatkowski
*/

#include <bits/stdc++.h>
#include "quality.h"
#define fi first
#define se second
#define pb push_back

using namespace std;
typedef long long ll;

const int MAXN = 1e6 + 7;
const int INF = 1e9 + 7;

bool check(int m, int R, int C, int H, int W, int *Q[3001])
{
	vector<vector<int>> pref(R + 1, vector<int>(C + 1));
	for (int i = 1; i <= R; ++i)
		for (int j = 1; j <= C; ++j)
			pref[i][j] = pref[i - 1][j] + pref[i][j - 1] - pref[i - 1][j - 1] + (Q[i - 1][j - 1] >= m);
	for (int i = 1; i <= R-H+1; ++i)
		for (int j = 1; j <= C-W+1; ++j)
			if (2*(pref[i + H - 1][j + W - 1] - pref[i - 1][j + W - 1] - pref[i + H - 1][j - 1] + pref[i - 1][j - 1]) >= H*W)
				return true;
	return false;
}

int rectangle(int R, int C, int H, int W, int *Q[3001])
{
	int lo = 1, hi = R*C;
	while (lo < hi) {
		int mid = (lo + hi + 1) / 2;
		if (check(mid, R, C, H, W, Q))
			lo = mid;
		else
			hi = mid - 1;
	}
	return lo;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccCWL1Kz.o: in function `main':
grader.cpp:(.text.startup+0xe9): undefined reference to `rectangle(int, int, int, int, int (*) [3001])'
collect2: error: ld returned 1 exit status