Submission #1103956

#	Time	Username	Problem	Language	Result	Execution time	Memory
1103956		SteveBro	Connecting Supertrees (IOI20_supertrees)	C++17	Compilation error	0 ms	0 KiB

supertrees

#include <iostream>

using namespace std;
int n,mat[101][101];
void build(int b[][101])
{

}
int construct(int p[][101])
{
    int i,j;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            if(p[i][j]==3||p[i][j]!=p[j][i])
                return 0;
        }
    }
    for(i=1;i<=n;i++)
        if(p[i][i]!=0)
            return 0;
    int mat[101][101];
    build(mat);
    return 1;
}
int main()
{
    cin>>n;
   /// cout<<construct([[1, 1, 2, 2], [1, 1, 2, 2], [2, 2, 1, 2], [2, 2, 2, 1]]);
    return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cchjyW8t.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc8H2kJu.o:supertrees.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/cchjyW8t.o: in function `main':
grader.cpp:(.text.startup+0x39a): undefined reference to `construct(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)'
collect2: error: ld returned 1 exit status