Submission #405744

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
405744	2021-05-16 21:08:28	ly20	Stations (IOI20_stations)	C++17	100 / 100	1067 ms	968 KiB

stations

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#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1123;
int t, ent[MAXN], sd[MAXN], prof[MAXN];
vector <int> grafo[MAXN];
void dfs(int v, int p) {
    ent[v] = t;
    t++;
    for(int i = 0; i < grafo[v].size(); i++) {
        int viz = grafo[v][i];
        if(viz == p) continue;
        prof[viz] = prof[v] + 1;
        dfs(viz, v);
    }
    sd[v] = t;
    t++;
}
vector<int> label(int n, int k, vector<int> u, vector<int> v) {
  vector<int> labels;
  for(int i =0 ; i < n; i++) grafo[i].clear();
    for(int i = 0; i < u.size(); i++) {
        grafo[u[i]].push_back(v[i]);
        grafo[v[i]].push_back(u[i]);
    }
    prof[0] = 0;
    t = 0;
    dfs(0, 0);
    set <pair <int, int> > s;
    map <pair <int, int>, int> mp;
 
 
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Compilation message (stderr)

stations.cpp: In function 'void dfs(int, int)':
stations.cpp:10:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for(int i = 0; i < grafo[v].size(); i++) {
      |                    ~~^~~~~~~~~~~~~~~~~
stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:22:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |     for(int i = 0; i < u.size(); i++) {
      |                    ~~^~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:52:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |  for(int i = 0; i < c.size(); i++) {
      |                 ~~^~~~~~~~~~
stations.cpp:63:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |         for(int i = 0; i < c.size(); i++) {
      |                        ~~^~~~~~~~~~
stations.cpp:71:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |         for(int i = 1; i < temp.size(); i++) {
      |                        ~~^~~~~~~~~~~~~
stations.cpp:80:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |         for(int i = 0; i < c.size(); i++) {
      |                        ~~^~~~~~~~~~
stations.cpp:88:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |         for(int i = 0; i < temp.size() - 1; i++) {
      |                        ~~^~~~~~~~~~~~~~~~~
stations.cpp:60:2: warning: 'tp' may be used uninitialized in this function [-Wmaybe-uninitialized]
   60 |  if(tp == 0) {
      |  ^~

• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61