Submission #817715

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
817715	2023-08-09 15:14:56	LucaIlie	Mergers (JOI19_mergers)	C++17	56 / 100	3069 ms	105824 KiB

mergers

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#include <bits/stdc++.h>
using namespace std;
const int MAX_N = 5e5;
const int MAX_LOG_N = 19;
int state[MAX_N + 1], parent[MAX_LOG_N + 1][MAX_N + 1], depth[MAX_N + 1], uplus[MAX_N + 1], uminus[MAX_N + 1];
vector<int> edges[MAX_N + 1], cities[MAX_N + 1];
set<int> stateEdges[MAX_N + 1];
struct DSU {
    int p[MAX_N + 1];
    void init( int k ) {
        for ( int u = 1; u <= k; u++ )
            p[u] = u;
    }
    int find( int u ) {
        if ( p[u] == u )
            return u;
        p[u] = find( p[u] );
        return p[u];
    }
    void merge( int u, int v ) {
        u = find( u );
        v = find( v );
        if ( u == v )
            return;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

mergers.cpp: In function 'int main()':
mergers.cpp:117:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  117 |         for ( int i = 0; i < cities[s].size() - 1; i++ ) {
      |                          ~~^~~~~~~~~~~~~~~~~~~~~~
mergers.cpp:141:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  141 |         for ( int i = 0; i < cities[s].size() - 1; i++ ) {
      |                          ~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 24 / 24
• Subtask 3: 0 / 14
• Subtask 4: 22 / 22
• Subtask 5: 0 / 30