Submission #672543

#	Time	Username	Problem	Language	Result	Execution time	Memory
672543		mmk	Crocodile's Underground City (IOI11_crocodile)	C++14	Compilation error	0 ms	0 KiB

crocodile

#include "crocodile.h"
#include<bits/stdc++.h>
#define INF 0x3f3f3f3f3f3f3f3f
#define ll long long
using namespace std;
const int MAXN = 1e5+10;
ll Dist1[MAXN], Dist2[MAXN];
int marc[MAXN];
vector<ll> grafo[MAXN];
vector<ll> weight[MAXN];
ll travel_plan(int n, int m, int R[][2], int L[], int K, int P[])
{
	for(int i = 0; i < n; i++)
	{
		ll a = R[i][0];
		ll b = R[i][1];
		grafo[a].push_back(b);
		grafo[b].push_back(a);
		weight[a].push_back(L[i]);
		weight[b].push_back(L[i]);
	}
	set<pair<ll,ll>> s;
	for(int i = 0; i < n; i++)
	{
		Dist1[i] = INF;
		Dist2[i] = INF;
	}
	for(int i = 0; i < k; i++)
	{
		Dist1[P[i]] = 0;
		Dist2[P[i]] = 0;
		s.insert({0,P[i]});
	}
	while(!s.empty())
	{
		ll cur = s.begin()->second;
		if(marc[cur] == 1) continue;
		marc[cur] = 1;
		for(int i = 0; i < grafo[cur].size(); i++)
		{
			ll viz = grafo[cur][i];
			ll p = weight[cur][i];
			if(Dist2[cur] + p < Dist1[viz])
			{
				Dist2[viz] = Dist1[viz];
				Dist1[viz] = Dist2[cur] + p;
				s.insert({Dist2[viz],viz});
			}
			else if(Dist2[cur] + p < Dist2[viz])
			{
				Dist2[viz] = Dist2[cur] + p;
				s.insert({Dist2[viz],viz});
			}
		}
	}
	return Dist2[0];
}

Compilation message (stderr)

crocodile.cpp:11:4: error: ambiguating new declaration of 'long long int travel_plan(int, int, int (*)[2], int*, int, int*)'
   11 | ll travel_plan(int n, int m, int R[][2], int L[], int K, int P[])
      |    ^~~~~~~~~~~
In file included from crocodile.cpp:1:
crocodile.h:1:5: note: old declaration 'int travel_plan(int, int, int (*)[2], int*, int, int*)'
    1 | int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]);
      |     ^~~~~~~~~~~
crocodile.cpp: In function 'long long int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:28:21: error: 'k' was not declared in this scope
   28 |  for(int i = 0; i < k; i++)
      |                     ^
crocodile.cpp:39:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |   for(int i = 0; i < grafo[cur].size(); i++)
      |                  ~~^~~~~~~~~~~~~~~~~~~