Submission #721132

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
7211322023-04-10 10:49:45Jarif_RahmanKeys (IOI21_keys)C++17
67 / 100
3040 ms52956 KiB
#include "keys.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
struct dsu{
int n;
vector<int> sz, p;
vector<bool> bl;
dsu(int _n): n(_n){
sz.resize(n, 1);
bl.assign(n, 0);
p.resize(n);
for(int i = 0; i < n; i++) p[i] = i;
}
int get(int x){
if(p[x] != x) p[x] = get(p[x]);
return p[x];
}
void unite(int a, int b){
a = get(a), b = get(b);
if(a == b) return;
if(sz[b] > sz[a]) swap(a, b);
sz[a]+=sz[b];
sz[b] = 0;
p[b] = a;
 
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Compilation message (stderr)

keys.cpp: In function 'void bfs(int)':
keys.cpp:122:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  122 |     if(reachable.size() < P){
      |        ~~~~~~~~~~~~~~~~~^~~
keys.cpp:128:30: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  128 |     else if(reachable.size() == P){
      |             ~~~~~~~~~~~~~~~~~^~~~
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