Submission #1031032

#	Time	Username	Problem	Language	Result	Execution time	Memory
1031032		Marco_Escandon	Rectangles (IOI19_rect)	C++17	Compilation error	0 ms	0 KiB

rect

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

long long count_rectangles(std::vector<std::vector<int> > a) {
	ll cont=0;
	ll n=a.size();ll m=a[0].size();
	for(int i=0; i<n-1; i++)
	{
		for(int j=0; j<m-1; j++)
		{
            ll c1=cont;
			for(int k=i+2; k<n; k++)
			{
				for(int l=j+2; l<m; l++)
				{
					ll pl=1;
					for(int o=i+1; o<k; o++)
					{
						for(int p=j+1; p<l; p++)
						{
							if(a[o][p]>=min(min(a[i][p],a[k][p]),min(a[o][j],a[o][l])))
							{
								pl=0;
								goto fin1;
							}
						}
					}
                    fin1:;
                    cont+=pl;
				}
            }
		}
	}
	return cont;
}

int main() {
	int n, m;
	cin>>n;
	cin>>m;
	vector<vector<int>> a(n, vector<int>(m));
	for (int i = 0; i < n; i++)	{
		for (int j = 0; j < m; j++) {
			cin>>a[i][j];
		}
	}

	long long result = count_rectangles(a);

	cout<<result;
	return 0;
}

Compilation message (stderr)

rect.cpp: In function 'long long int count_rectangles(std::vector<std::vector<int> >)':
rect.cpp:12:16: warning: unused variable 'c1' [-Wunused-variable]
   12 |             ll c1=cont;
      |                ^~
/usr/bin/ld: /tmp/cce9zJaT.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cchc9IOR.o:rect.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status