Submission #1087958

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1087958	2024-09-13T15:36:35 Z	T0p_	Crocodile's Underground City (IOI11_crocodile)	C++14	Compilation error	0 ms	0 KB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>
 
using namespace std;
 
const int MAX_N = 100000 + 5;
 
int degree[MAX_N];
long long mn_1[MAX_N], mn_2[MAX_N];
bool is_process[MAX_N];
vector<pair<int, long long>> g[MAX_N];
 
void update(int u, long long v) {
  if (v < mn_1[u]) {
    mn_2[u] = mn_1[u];
    mn_1[u] = v;
  }
  else {
    mn_2[u] = min(mn_2[u], v);
  }
}
 
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]) {
  for (int i=0 ; i<N ; i++) {
    mn_1[i] = mn_2[i] = 2e9;
  }
 
  for (int i=0 ; i<M ; i++) {
    g[R[i][0]].push_back({ R[i][1], L[i] });
    g[R[i][1]].push_back({ R[i][0], L[i] });
 
    degree[R[i][0]]++;
    degree[R[i][1]]++;
  }
 
  queue<int> topo;
 
  for (int i=0 ; i<K ; i++) {
    is_process[P[i]] = true;
    topo.push(P[i]);
    mn_1[P[i]] = mn_2[P[i]] = 0;
  }
  
  while (!topo.empty()) {
    int u = topo.front();
    topo.pop();
 
    for (pair<int, long long> edge : g[u]) {
      degree[edge.first]--;
      update(edge.first, mn_2[u] + edge.second);
 
      if (i != 0 && !is_process[edge.first] && degree[edge.first] == 1) {
        is_process[edge.first] = true;
        topo.push(edge.first);
      }
    }
  }
 
  return mn_2[0];
}

Compilation message

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:52:11: error: 'i' was not declared in this scope
   52 |       if (i != 0 && !is_process[edge.first] && degree[edge.first] == 1) {
      |           ^