Submission #140661

# Submission time Handle Problem Language Result Execution time Memory
140661 2019-08-04T10:34:39 Z eohomegrownapps Crocodile's Underground City (IOI11_crocodile) C++14
Compilation error
0 ms 0 KB
#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll INF = 1e18;
vector<vector<pair<ll,ll> > > adjlist;
vector<ll> safe;
vector<ll> shortest;
vector<ll> secshortest;
ll n;

void dijkstra(){
	priority_queue<pair<ll,ll>,vector<pair<ll,ll> >,greater<pair<ll,ll> > > pq;
	for (ll i : safe){
		pq.push(make_pair(0,i));
	}
	while (pq.size()>0){
		auto f = pq.top();
		pq.pop();
		if (f.first>secshortest[f.second]){
			continue;
		}
		//cout<<"process "<<f.second<<endl;
		for (auto i : adjlist[f.second]){
			if (secshortest[i.second]>secshortest[f.second]+i.first){
				if (secshortest[f.second]+i.first<=shortest[i.second]){
					secshortest[i.second]=shortest[i.second];
					shortest[i.second]=secshortest[f.second]+i.first;
				} else {
					secshortest[i.second]=secshortest[f.second]+i.first;
				}
				pq.push(make_pair(secshortest[i.second],i.second));
			}
		}
		/*for (ll i : shortest){
			cout<<(i==INF?-1:i)<<" ";
		}cout<<endl;
		for (ll i : secshortest){
			cout<<(i==INF?-1:i)<<" ";
		}cout<<endl;
		cout<<"==="<<endl;*/
	}
}

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]) {
	n=N;
	adjlist.resize(n);
	safe.resize(K);
	shortest.resize(n,INF);
	secshortest.resize(n,INF);
	for (int i = 0; i<M; i++){
		adjlist[R[i][0]].push_back(make_pair(L[i],R[i][1]));
		adjlist[R[i][1]].push_back(make_pair(L[i],R[i][0]));
	}
	for (int i = 0; i<K; i++){
		safe[i]=P[i];
		shortest[P[i]]=0;
		secshortest[P[i]]=0;
	}
	dijkstra();
	return secshortest[0];
}


#include "crocodile.h"
#include <stdio.h>
#include <stdlib.h>

#define MAX_N 50000
#define MAX_M 10000000

static int N, M;
static int R[MAX_M][2];
static int L[MAX_M];
static int K;
static int P[MAX_N];
static int solution;

inline 
void my_assert(int e) {if (!e) abort();}

void read_input()
{
  int i;
  my_assert(3==scanf("%d %d %d",&N,&M,&K));
  for(i=0; i<M; i++)
    my_assert(3==scanf("%d %d %d",&R[i][0],&R[i][1],&L[i]));
  for(i=0; i<K; i++)
    my_assert(1==scanf("%d",&P[i]));
  my_assert(1==scanf("%d",&solution));
}

int main()
{
  int ans;
  read_input();
  ans = travel_plan(N,M,R,L,K,P);
  if(ans==solution)
    printf("Correct.\n");
  else
    printf("Incorrect. Returned %d, Expected %d.\n",ans,solution);

  return 0;
}

Compilation message

/tmp/ccoNuYm2.o: In function `read_input()':
grader.cpp:(.text+0x0): multiple definition of `read_input()'
/tmp/cchnyKqZ.o:crocodile.cpp:(.text+0x0): first defined here
/tmp/ccoNuYm2.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/cchnyKqZ.o:crocodile.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status