Submission #681884

#	Time^UTC-0	Username	Problem	Language	Result	Execution time	Memory
681884	2023-01-14 18:29:17	nutella	Virus Experiment (JOI19_virus)	C++17	0 / 100	2097 ms	45900 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

virus

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#include <bits/stdc++.h>
using namespace std;
constexpr int dx[]{-1, 0, 1, 0}, dy[]{0, 1, 0, -1};
struct DSU {
    vector<int> p, sz;
    vector<vector<int>> subtree;
    DSU() = default;
    DSU(int n) : p(n), sz(n, 1), subtree(n) {
        iota(p.begin(), p.end(), 0);
        for (int i = 0; i < n; ++i) {
            subtree[i] = {i};
        }
    }
    int leader(int x) {
        return x == p[x] ? x : p[x] = leader(p[x]);
    }
    bool unite(int a, int b) {
        a = leader(a), b = leader(b);
        if (a == b) {
            return false;
        }
        if (sz[a] < sz[b]) {
            swap(a, b);
 
 
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Compilation message (stderr)

virus.cpp: In function 'int main()':
virus.cpp:195:55: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  195 |                                 for (int aa = pnt; aa < vst.size() - 1; ++aa) {
      |                                                    ~~~^~~~~~~~~~~~~~~~
virus.cpp:200:55: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  200 |                                 for (int aa = pnt; aa < vst.size(); ++aa) {
      |                                                    ~~~^~~~~~~~~~~~
virus.cpp:208:55: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  208 |                                 for (int aa = pnt; aa < vst.size() - 1; ++aa) {
      |                                                    ~~~^~~~~~~~~~~~~~~~
virus.cpp:214:55: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  214 |                                 for (int aa = pnt; aa < stk.size(); ++aa) {
      |                                                    ~~~^~~~~~~~~~~~

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