Submission #944386

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
944386	2024-03-12 16:25:31	FucKanh	Regions (IOI09_regions)	C++14	0 / 100	1754 ms	43100 KiB

regions

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#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
using namespace std;
const int maxn = 2e5 + 2;
const int maxr = 25002;
int cnt[450][maxr], c[maxr], tin[maxn], tout[maxn], t, h[maxn], id[maxn], sz[maxr];
vector<int> a[maxn], in[maxn], out[maxn];
void dfs(int u, int pa = -1) {
    tin[u] = ++t;
    if (!c[h[u]]) c[h[u]] = u;
    for (int i = 0; i < a[u].size(); i++) {
        int v = a[u][i];
        if (v == pa) continue;
        dfs(v, u);
    }
//    cerr << "out " << u << " " << h[u] << " : " << c[h[u]] << endl;
    tout[u] = t;
    in[h[u]].push_back(tin[u]);
    out[h[u]].push_back(tout[u]);
}
void dfsc(int u, int check, int pa = -1) {
    if (h[u] == check && c[check] == 0) c[check] = u;
    for (int i = 0; i < a[u].size(); i++) {
        int v = a[u][i];
 
 
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Compilation message (stderr)

regions.cpp: In function 'void dfs(int, int)':
regions.cpp:16:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for (int i = 0; i < a[u].size(); i++) {
      |                     ~~^~~~~~~~~~~~~
regions.cpp: In function 'void dfsc(int, int, int)':
regions.cpp:29:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for (int i = 0; i < a[u].size(); i++) {
      |                     ~~^~~~~~~~~~~~~
regions.cpp: In function 'int main()':
regions.cpp:89:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |             for (int i = 1; i < in[r1].size() && pos < in[r2].size(); i++) {
      |                             ~~^~~~~~~~~~~~~~~
regions.cpp:89:54: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |             for (int i = 1; i < in[r1].size() && pos < in[r2].size(); i++) {
      |                                                  ~~~~^~~~~~~~~~~~~~~
regions.cpp:90:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |                 while (pos < in[r2].size() && in[r2][pos] < in[r1][i]) pos++;
      |                        ~~~~^~~~~~~~~~~~~~~
regions.cpp:91:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |                 while (pos < in[r2].size() && in[r2][pos] >= in[r1][i] && out[r2][pos] <= out[r1][i]) ans++, pos++;
      |                        ~~~~^~~~~~~~~~~~~~~

• Subtask 1: 0 / 15
• Subtask 2: 0 / 85