Submission #237212

#	Time	Username	Problem	Language	Result	Execution time	Memory
237212		kartel	Ceste (COCI17_ceste)	C++14	0 / 160	2577 ms	131076 KiB

ceste

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#define F first
#define S second
#define pb push_back
#define N +2005
#define MaxS N * N
#define M ll(1e9 + 7)
#define sz(x) (int)x.size()
//#define re return
#define oo ll(1e18)
#define el '\n'
#define pii pair <int, int>
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef long double ld;

int f[N][N * N / 100];
int i, j, n, m, u, v, t, c;
vector <pair <int, pair <int, int> > > g[N];
bool mrk[N];

void dfs(int v)
{
    if (mrk[v]) return;
    mrk[v] = 1;

    for (auto re : g[v])
    {
        int u = re.F;
        int t = re.S.F;
        int c = re.S.S;
        if (mrk[u]) continue;

        for (j = 0; j < N * N / 100; j++)
          if (j + t < N * N / 100 && f[u][j + t] > f[v][j] + c)
            f[u][t + j] = f[v][j] + c;

        dfs(u);
    }

    mrk[v] = 0;
}

int main()
{
    srand(time(0));
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

//    in("input.txt");
//    out("output.txt");

    cin >> n >> m;
    for (i = 1; i <= n; i++)
    {
        cin >> u >> v >> t >> c;
        g[v].pb({u, {t, c}});
        g[u].pb({v, {t, c}});
    }

    for (i = 1; i <= n; i++)
      for (j = 0; j < N * N / 100; j++) f[i][j] = 1e9;

    f[1][0] = 0;
    dfs(1);

    for (i = 2; i <= n; i++)
    {
        ll mn = 1e18;
        for (j = 1; j < N * N / 100; j++)
            if (f[i][j] * 1ll * j < mn)
        {
            mn = f[i][j] * 1ll * j;
        }

        if (mn == 1e18) cout << "-1" << el;
        else cout << mn << el;
    }

}

//  x ^ 2 + y ^ 2 = 1
//  x * a_i + y * b_i
//  a_i = -b_i * tan(alpha)
//  a_i / -b_i = tan(alpha)
//  alpha = atan(a_i / (-b_i))

• Subtask 1: 0 / 16
• Subtask 2: 0 / 16
• Subtask 3: 0 / 16
• Subtask 4: 0 / 16
• Subtask 5: 0 / 16
• Subtask 6: 0 / 16
• Subtask 7: 0 / 16
• Subtask 8: 0 / 16
• Subtask 9: 0 / 16
• Subtask 10: 0 / 16