Submission #953737

#	Time	Username	Problem	Language	Result	Execution time	Memory
953737		Trisanu_Das	Connecting Supertrees (IOI20_supertrees)	C++17	Compilation error	0 ms	0 KiB

supertrees

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

int n, par[1005];

int find(int u){
  return (par[u] == u ? u : find(par[u]));
}

void union(int u, int v){
  par[find(u)] = find(b);
}

int construct(vector<vector<int> > p){
  n = p.size();
  for(int i = 0; i < n; i++) par[i] = i;
  vector<vector<int> > b(n, vector<int>(n));
  for(int i = 0; i < n; i++){
    for(int j = 0; j < n; j++){
      if(p[i][j] && find(i) != find(j)){
        union(i, j);
        adj[i][j] = adj[j][i] = 1;
      }else if(!p[i][j] && find(i) == find(j)) return 0;
    }
  }
  build(b);
  return 1;
}

Compilation message (stderr)

supertrees.cpp:11:11: error: expected identifier before '(' token
   11 | void union(int u, int v){
      |           ^
supertrees.cpp:11:12: error: expected unqualified-id before 'int'
   11 | void union(int u, int v){
      |            ^~~
supertrees.cpp:11:12: error: expected ')' before 'int'
   11 | void union(int u, int v){
      |           ~^~~
      |            )
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:22:9: error: expected primary-expression before 'union'
   22 |         union(i, j);
      |         ^~~~~
supertrees.cpp:23:9: error: 'adj' was not declared in this scope
   23 |         adj[i][j] = adj[j][i] = 1;
      |         ^~~