Submission #512465

#	Time	Username	Problem	Language	Result	Execution time	Memory
512465		Killer2501	Ceste (COCI17_ceste)	C++14	160 / 160	371 ms	17680 KiB

ceste

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define ull unsigned long long
#define pb push_back
#define pll pair<ll, ll>
#define pii pair<int, int>
#define fi first
#define se second
using namespace std;
const int N = 2e5+5;
const int M = (1<<17);
const ll inf = 1e15;
const int mod = 1e9+7;
int n, t, k, a[N], c[N], d[N], m;
ll ans, tong, b[N];
string s;
struct node
{
    int id, x, y;
    node(){}
    node(int _id, int _x, int _y)
    {
        id = _id;
        x = _x;
        y = _y;
    }
    bool operator < (const node& u) const
    {
        return x > u.x;
    }
};
vector<node> adj[N];
void sol()
{
    cin >> n >> m;
    while(m -- > 0)
    {
        int x, y, t, c;
        cin >> x >> y >> t >> c;
        adj[x].pb(node(y, t, c));
        adj[y].pb(node(x, t, c));
    }
    fill_n(b, n+1, inf);
    fill_n(d, n+1, mod);
    priority_queue< node > pq;
    pq.push(node(1, 0, 0));
    while(!pq.empty())
    {
        node u = pq.top();
        pq.pop();
        //cout << u.id <<" "<<u.x <<" "<<u.y <<'\n';
        if(u.y > d[u.id])continue;
        d[u.id] = u.y;
        b[u.id] = min(b[u.id], 1ll * u.x * u.y);
        for(node v: adj[u.id])
        {
            pq.push(node(v.id, u.x+v.x, u.y+v.y));
        }
    }
    for(int i = 2; i <= n; i ++)
    {
        if(b[i] == inf)cout << -1 << '\n';
        else cout << b[i] << '\n';
    }
}
int main()
{
    cin.tie(0);
    cout.tie(0);
    ios_base::sync_with_stdio(0);
    #define task "test"
    if(fopen(task".inp", "r"))
	{
		freopen(task".inp", "r", stdin);
		freopen(task".out", "w", stdout);
    }
    int ntest = 1;
    //cin >> ntest;
    while(ntest -- > 0)
    sol();
}

Compilation message (stderr)

ceste.cpp: In function 'int main()':
ceste.cpp:75:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   75 |   freopen(task".inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
ceste.cpp:76:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |   freopen(task".out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 16 / 16
• Subtask 3: 16 / 16
• Subtask 4: 16 / 16
• Subtask 5: 16 / 16
• Subtask 6: 16 / 16
• Subtask 7: 16 / 16
• Subtask 8: 16 / 16
• Subtask 9: 16 / 16
• Subtask 10: 16 / 16