답안 #21909

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
21909	2017-04-26T22:52:36 Z	iletavcioski	악어의 지하 도시 (IOI11_crocodile)	C++	컴파일 오류	0 ms	0 KB

crocodile

#include<iostream>
#include<vector>
#include<queue>
#include<cstdio>
using namespace std;
typedef long long ll;
bool oznaceni[100001];
struct node
{
   int a;
   ll val;
};
const bool operator <(const node &x,const node&y)
{
    return x.val>y.val;
}
vector<vector<pair<int,ll> > > v;
using namespace std;
int main()
{
    int n,m,k;
    cin>>n>>m>>k;
    vector<pair<int,ll> > vec;
    v.insert(v.begin(),n+1,vec);
    vector<ll> dist1(n+1,1e9+1);
    vector<ll> dist2(n+1,1e9+1);
    for(int i=0;i<m;i++)
    {
        int a,b;
        ll c;
        cin>>a>>b>>c;
        v[a].push_back(make_pair(b,c));
        v[b].push_back(make_pair(a,c));
    }
    priority_queue<node> pq;
    for(int i=0;i<k;i++)
    {
        int a;
        cin>>a;
        node g;
        g.a=a;
        g.val=0;
        pq.push(g);
        dist1[a]=dist2[a]=0;
    }
    while(!pq.empty())
    {
        node g=pq.top();
        pq.pop();
        int topi=g.a;
        ll tops=g.val;
        for(int i=0;i<v[topi].size();i++)
        {
            if(tops+v[topi][i].second<dist1[v[topi][i].first])
            {
                int go=v[topi][i].first;
                dist2[go]=dist1[go];
                dist1[go]=tops+v[topi][i].second;
                node gg;
                gg.a=go;
                gg.val=dist2[go];
                pq.push(gg);

            }
            else if(tops+v[topi][i].second<dist2[v[topi][i].first])
            {
                int go=v[topi][i].first;
                dist2[go]=tops+v[topi][i].second;
                node gg;
                gg.a=go;
                gg.val=v[topi][i].second+tops;
                pq.push(gg);
            }
        }
    }
    cout<<dist2[0]<<endl;
    return 0;
}
/*
5 7 2
0 2 4
0 3 3
3 2 2
2 1 10
0 1 100
0 4 7
3 4 9
1 3
*/

Compilation message

crocodile.cpp: In function 'int main()':
crocodile.cpp:52:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i=0;i<v[topi].size();i++)
                      ^
/tmp/cckiSjzr.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/cca8eITn.o:crocodile.cpp:(.text.startup+0x0): first defined here
/tmp/cckiSjzr.o: In function `main':
grader.cpp:(.text.startup+0x2d): undefined reference to `travel_plan(int, int, int (*) [2], int*, int, int*)'
collect2: error: ld returned 1 exit status