Submission #414872

#	Time	Username	Problem	Language	Result	Execution time	Memory
414872		JediMaster11	Traffic (IOI10_traffic)	C++17	Compilation error	0 ms	0 KiB

traffic

#include <bits/stdc++.h>
#include "traffic.h"
using namespace std;
 
 
#define ll long long
#define uint unsigned int
#define ull unsigned long long
#define endl "\n"
#define elif else if
#define fo(i, a, b) for (int i = a; i < (int)b; i++)
#define rfo(i, a, b) for (int i = a - 1; i >= b; i--)
#define v(i) vector<i>
#define vll vector<long long>
#define vstr vector<string>
#define pairll pair<long long, long long>
#define vpairll vector<pair<long long, long long>>
#define print(x) cout << x << "\n"
 
#define pushall(x, n)                   \
    x.resize(n);                        \
    for (int zz = 0; zz < (int)n; zz++) \
    {                                   \
        cin >> x[zz];                   \
    }
 
 
 
 
const int MAX_N = 1e6 + 3e2;
vector<int> adj[MAX_N];
 
int dfss(int u, int p, int P[]) {
    int ans = P[u];
    for(int to : adj[u]) {
        if(to == p) continue;
        ans += dfss(to, u, P);
    }
    return ans;
}
 
int LocateCentre(int Nn, int P[], int S[], int D[]) {
  	int n = Nn;
    for(int i = 0; i < N-1; i++) {
        adj[S[i]].push_back(D[i]);
        adj[D[i]].push_back(S[i]);
    }
 
    int ans = 2147483647, ret = -1;
    for(int i = 0; i < N; i++) {
        int max_traffic = -2147483648;
        for(int to : adj[i]) {
            max_traffic = max(max_traffic, dfss(to, i, P));
        }
        if(max_traffic < ans) {
            ans = max_traffic;
            ret = i;
        }
    }
    return ret;
}

Compilation message (stderr)

traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:44:24: error: 'N' was not declared in this scope
   44 |     for(int i = 0; i < N-1; i++) {
      |                        ^
traffic.cpp:50:24: error: 'N' was not declared in this scope
   50 |     for(int i = 0; i < N; i++) {
      |                        ^
traffic.cpp:43:8: warning: unused variable 'n' [-Wunused-variable]
   43 |    int n = Nn;
      |        ^