Submission #300315

#	Time	Username	Problem	Language	Result	Execution time	Memory
300315		junseo	Connecting Supertrees (IOI20_supertrees)	C++17	Compilation error	0 ms	0 KiB

supertrees

#include "supertrees.h"
#include <bits/stdc++.h>
#define fi first
#define se second
#define eb emplace_back
#define all(v) (v).begin(), (v).end()
#define rmin(r, x) r = min(r, x)
#define rmax(r, x) r = max(r, x)
#define ends ' '
#define endl '\n'
#define fastio ios_base::sync_with_stdio(0), cin.tie(0)
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int maxn = 1e3 + 10;

int n;
vector<vector<int> b;

int construct(vector<std::vector<int>> p) {
	n = p.size();
	b.resize(n);
	for(int i = 0; i < n; ++i)	b[i].resize(n);
	for(int i = 0; i < n - 1; ++i)	b[i][i + 1] = b[i + 1][i] = 1;
	build(b);
	return 1;
}

Compilation message (stderr)

supertrees.cpp:20:20: error: template argument 1 is invalid
   20 | vector<vector<int> b;
      |                    ^
supertrees.cpp:20:20: error: template argument 2 is invalid
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:24:2: error: 'b' was not declared in this scope
   24 |  b.resize(n);
      |  ^