#include "bits/stdc++.h"
using namespace std;
#define endl "\n"
#define ll long long int
#define pb push_back
#define mp make_pair
#define fi first
#define se second
const long long MOD = 1e9+7;
const long long INF = 1e18;
int nx[4] = {0, 0, -1, 1};
int ny[4] = {1, -1, 0, 0};
int rectangle(int r, int c, int h, int w, int q[300][300])
{
int res = 1e8;
/*for(int i = 0; i<=r-h; i++)
{
for(int j = 0; j<=c-w; j++)
{
set<int> arr;
for(int k = i; k<h+i; k++)
{
for(int t = j; t<w+j; t++)
{
arr.insert(q[k][t]);
}
}
int len = int(arr.size());
int curr = *next(arr.begin(),len/2);
res = min(res, curr);
}
}*/
for(int i = 0; i<=r-h; i++)
{
set<int> arr;
for(int k = i; k<h+i; k++)
{
for(int j = 0; j<w; j++)
{
arr.insert(q[k][j]);
}
}
int len = int(arr.size());
int curr = *next(arr.begin(), len/2);
res = min(res, curr);
for(int j = 0; j<c-w; j++)
{
for(int k = i; k<h+i; k++)
{
arr.erase(q[k][j]);
}
for(int k = i; k<h+i; k++)
{
arr.insert(q[k][j+w]);
}
int len = int(arr.size());
int curr = *next(arr.begin(), len/2);
cout << curr << endl;
res = min(res, curr);
}
}
return res;
}
Compilation message
/usr/bin/ld: /tmp/ccQU9CxQ.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
