Submission #765124

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
7651242023-06-24 08:29:17vjudge1Roadside Advertisements (NOI17_roadsideadverts)C++17
7 / 100
48 ms9684 KiB
#include <bits/stdc++.h>
#define ibase ios::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define pb push_back
#define ff first
#define int long long
#define ss second
using namespace std;
const int N = 5e4 + 3;
const int MOD = 1e9 + 7;
int a[N], ans[N], pos[N], cnt = 1, was[N], was1[N];
vector < pair < int, int > > g[N];
void dfs(int v){
cnt++;
for(auto to : g[v]){
a[cnt] = to.ss;
pos[to.ff] = cnt;
dfs(to.ff);
}
}
void solve(){
int n, sum = 0, po;
cin >> n;
set < int > s;
for(int i=1; i<n; i++){
int x, y, cost;
po = x;
cin >> x >> y >> cost;
was[y] = 1;
was1[x] = 1;
s.insert(x);
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

roadsideadverts.cpp: In function 'void solve()':
roadsideadverts.cpp:47:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::set<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     for(int i=1; i<=s.size(); i++){
      |                  ~^~~~~~~~~~
roadsideadverts.cpp:46:8: warning: 'po' may be used uninitialized in this function [-Wmaybe-uninitialized]
   46 |     dfs(z);
      |     ~~~^~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...