Submission #837235

#	Time	Username	Problem	Language	Result	Execution time	Memory
837235		Sohsoh84	Thousands Islands (IOI22_islands)	C++17	0 / 100	32 ms	48092 KiB

islands

#include "islands.h"
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 1e6 + 10;

int deg[MAXN], n, m;
vector<int> f[MAXN];

variant<bool, vector<int>> find_journey(int n_, int m_, vector<int> U_, vector<int> V_) {
	n = n_;
	m = m_;
	for (int i = 0; i < m; i++) deg[U_[i]]++, f[MAXN];

	if (deg[0] >= 2 && deg[1] >= 1) return vector<int>({f[0][0], f[1][0], f[0][1], f[0][0], f[1][0], f[0][1]});
	return false;
}

Compilation message (stderr)

islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, std::vector<int>, std::vector<int>)':
islands.cpp:14:50: warning: right operand of comma operator has no effect [-Wunused-value]
   14 |  for (int i = 0; i < m; i++) deg[U_[i]]++, f[MAXN];
      |                                            ~~~~~~^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 0 / 24
• Subtask 5: 0 / 45