Submission #443406

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
443406	2021-07-10 12:58:26	urd05	Keys (IOI21_keys)	C++17	37 / 100	946 ms	24248 KiB

keys

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#include <bits/stdc++.h>
using namespace std;
int ret[2000];
int p[2000];
set<int> s[2000];
bool used[2000];
typedef pair<int,int> P;
vector<P> edge[2000];
int find(int a) {
    return p[a]<0?a:p[a]=find(p[a]);
}
void merge(int a,int b) {
    a=find(a);
    b=find(b);
    if (a==b) {
        return;
    }
    if (s[a].size()<s[b].size()) {
        swap(a,b);
    }
    for(auto now:s[b]) {
        if (!used[now])
            s[a].insert(now);
    }
    p[a]+=p[b];
    p[b]=a;
    s[b].clear();
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

keys.cpp: In function 'std::vector<int> find_reachable(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
keys.cpp:61:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |          for(int j=0;j<temp.size();j++) {
      |                      ~^~~~~~~~~~~~
keys.cpp:69:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |          for(int j=0;j<edge[key].size();j++) {
      |                      ~^~~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 17 / 17
• Subtask 4: 0 / 30
• Subtask 5: 0 / 33