Submission #730415

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
730415	2023-04-25 20:26:35	caganyanmaz	Thousands Islands (IOI22_islands)	C++17	26 / 100	41 ms	6144 KiB

islands

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#include <bits/stdc++.h>
#define pb push_back
#define pp pop_back
using namespace std;
vector<int> path;
vector<bool> visited;
vector<vector<int>> g;
vector<array<int, 2>> edges;
vector<int> result;
void add(int next_node, int node)
{
        int next_edge;
        for (next_edge = 0; next_edge < g[next_node].size() && edges[g[next_node][next_edge]][1] != node; next_edge++);
        assert(next_edge < g[next_node].size());
        result.pb(g[next_node][next_edge]);
        reverse(g[next_node].begin(), g[next_node].end());
}
bool dfs(int node)
{
        if (g[node].size() > 2 || (g[node].size() > 1 && node == 0))
        {
                for (int i : path)
                        result.pb(i);
                if (node != 0)
                        for (int i = g[node].size()-1; i >= 0; i--)
                                if (edges[g[node][i]][1] == edges[path.back()][0])
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

islands.cpp: In function 'void add(int, int)':
islands.cpp:16:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |         for (next_edge = 0; next_edge < g[next_node].size() && edges[g[next_node][next_edge]][1] != node; next_edge++);
      |                             ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from islands.cpp:1:
islands.cpp:17:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         assert(next_edge < g[next_node].size());
      |                ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~

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