Submission #576149

#	Time	Username	Problem	Language	Result	Execution time	Memory
576149		Vanilla	Comparing Plants (IOI20_plants)	C++17	Compilation error	0 ms	0 KiB

plants

#include <bits/stdc++.h>
#include "supertrees.h"
using namespace std;
const int maxn = 1002;
int dsu[3][maxn];
set <int> comp [3][maxn];

int get_dad (int x, int d[]) {
	return d[x] = (x == d[x] ? x: get_dad(d[x], d));
}

void merge (int a, int b, int d[]){
	a = get_dad(a, d);
	b = get_dad(b, d);
	d[b] = a;
}


int construct(vector<vector<int>> p) {
	int n = p.size();
	vector <vector <int> > b (n, vector <int> (n));
	for (int i = 0; i < n; i++){
		dsu[0][i] = dsu[1][i] = dsu[2][i] = i;
		comp[0][i].insert(i);
		comp[1][i].insert(i);
	}
	for (int i = 0; i < n; i++){
		for (int j = 0; j < i; j++){
			merge(i,j, dsu[p[i][j]]);
		}
	}
	for (int i = 0; i < n; i++){
		for (int j = 0; j < i; j++){
			if (p[i][j] == 0 && (get_dad(i, dsu[1]) == get_dad(j, dsu[1]) || get_dad(i, dsu[2]) == get_dad(j, dsu[2]))) {
				// cout << i << " " << j << " " << get_dad(i, dsu[1]) << " " << get_dad(j, dsu[1]) << "\n";
				return 0;
			}
			if (p[i][j] == 1) comp[1][get_dad(i, dsu[1])].insert(j);
			if (p[i][j] == 2) comp[2][get_dad(i, dsu[2])].insert(j);
			// if (get_dad(i, dsu[1]) == get_dad(j, dsu[1]) && get_dad(i, dsu[2]) == get_dad(j, dsu[2])) return 0;
		}
	}
	for (int i = 0; i < n; i++){
		if (comp[1][i].size() != 1) {
			// cout << "1 " << i << ": ";
			vector <int> v;
			for (int j: comp[1][i]) {
				// cout << j << " ";
				v.push_back(j);
			}
			// cout << "\n";
			for (int j = 0; j < v.size() - 1; j++){
				b[v[j]][v[j + 1]] = b[v[j + 1]][v[j]] = 1;
			}
		}
		if (comp[2][i].size() != 1){
			// cout << "2 " << i << ": ";
			vector <int> v;
			for (int j: comp[2][i]) {
				// cout << j << " ";
				v.push_back(j);
			}
			// cout << "\n";
			for (int j = 0; j < v.size(); j++){
				b[v[j]][v[(j + 1) % v.size()]] = b[v[(j + 1) % v.size()]][v[j]] = 1;
			}
		}
	}
	// for (int i = 0; i < n; i++){
	// 	for (int j = 0; j <i; j++){
	// 		if (b[i][j]) {
	// 			cout << j << " " << i << "\n";
	// 		}
	// 	}
	// }
	build(b);
	return 1;
}

Compilation message (stderr)

plants.cpp:2:10: fatal error: supertrees.h: No such file or directory
    2 | #include "supertrees.h"
      |          ^~~~~~~~~~~~~~
compilation terminated.