Submission #481477

#	Time	Username	Problem	Language	Result	Execution time	Memory
481477		Qkake	Quality Of Living (IOI10_quality)	C++17	Compilation error	0 ms	0 KiB

quality

#include <bits/stdc++.h>
using namespace std;

const int MX = 3030;

bool ok(int level, int R, int C, int r, int c, int Q[MX][MX]) {
	int sum[MX][MX];
	for (int i = 1; i <= R; i++) for (int j = 1; j <= C; j++) 
		sum[i][j] = sum[i][j - 1] + sum[i - 1][j] - sum[i - 1][j - 1] + (Q[i][j] < level ? -1 : 1);
	for (int i = 1; i + r - 1 <= R; i++) for (int j = 1; j + c - 1 <= C; j++) 
		if (sum[i + r - 1][j + c - 1] - sum[i - 1][j + c - 1] - sum[i + r - 1][j - 1] + sum[i - 1][j - 1] > 0) return true;
	return false;
}

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

Compilation message (stderr)

/usr/bin/ld: /tmp/ccVOiu4j.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