oj.uz

Submission #750213

# Submission time Handle Problem Language Result Execution time Memory
750213 2023-05-29T07:54:42 Z singlabharat Cyberland (APIO23_cyberland) C++17
15 / 100
 1144 ms 29672 KB 
#include "cyberland.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<int>;
using vs = vector<string>;
using vb = vector<bool>;
using vvi = vector<vector<int>>;
using pii = pair<int, int>;
using vpii = vector<pair<int, int>>;
using si = set<int>;
using mii = map<int, int>;
#define sz(x) (int)size(x)
#define pb emplace_back
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define fr first
#define sc second
#define fo(i, end) for (int i = 0; i < end; i++)
#define foo(i, start, end) for (int i = start; i < end; i++)
template<typename T> inline void domin(T &x, T y) {if (y < x) x = y;}
template<typename T> inline void domax(T &x, T y) {if (y > x) x = y;}
template<typename T, typename U> ostream& operator<<(ostream &os, const pair<T, U> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template < typename T_container, typename T = typename enable_if < !is_same<T_container, string>::value, typename T_container::value_type >::type > ostream & operator<<(ostream &os, const T_container &a) { os << '{'; string sep; for (const T &x : a) os << sep << x, sep = ", "; return os << '}';}
void debug() {cerr << endl;}
template <typename Head, typename... Tail> void debug(Head h, Tail... t) {cerr << h << ' '; debug(t...);}
#ifdef singlabharat
#define debug(...) cerr << "(" << #__VA_ARGS__ << ") : ", debug(__VA_ARGS__)
#else
#define debug(...)
#endif
const int MX = 2e5 + 2, MOD = 1e9 + 7;
double INF = 1e18;

double solve(int N, int M, int K, int H, vector<int> x, vector<int> y, vector<int> c, vector<int> arr) {
    domin(K, 80);

    vector<vpii> g(N);
    fo(i, M) {
        g[x[i]].pb(pair(y[i], c[i]));
        g[y[i]].pb(pair(x[i], c[i]));
    }

    using state = tuple<double, int, int>;

    vb vis(N);
    queue<int> q;
    q.push(0);
    vis[0] = true;
    while (!empty(q)) {
        int u = q.front();
        q.pop();
        for (auto [v, _] : g[u]) {
            if (!vis[v]) {
                vis[v] = true;
                q.push(v);
            }
        }
    }

    if (!vis[H]) return -1;

    // {dist, divs, u}
    priority_queue < state, vector<state>, greater<state>> pq;
    vector<vector<double>> dist(N, vector<double>(K + 1, INF)); // min dist till u with k divs done
    pq.push({0.0, 0, 0});
    dist[0][0] = 0.0;
    fo(u, N) {
        if (arr[u] == 0 and vis[u]) {
            pq.push({0.0, 0, u});
            dist[u][0] = 0.0;
        }
    }

    while (!empty(pq)) {
        auto [_, divs, u] = pq.top();
        pq.pop();
        if (u == H) continue;
        for (auto [v, w] : g[u]) {
            if (arr[u] == 0 and w < dist[v][divs]) {
                dist[v][divs] = w;
                pq.push({dist[v][divs], divs, v});
            } if ((arr[u] == 1 or arr[u] == 2) and dist[u][divs] + w < dist[v][divs]) {
                dist[v][divs] = dist[u][divs] + w;
                pq.push({dist[v][divs], divs, v});

            } if (arr[u] == 2 and divs < K and dist[u][divs] / 2 + w < dist[v][divs + 1]) {
                dist[v][divs + 1] = dist[u][divs] / 2 + w;
                pq.push({dist[v][divs + 1], divs + 1, v});
            }
        }
    }

    return *min_element(begin(dist[H]), end(dist[H]));
}

Subtask #1
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 23 ms 468 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 724 KB Correct.
2 Correct 36 ms 716 KB Correct.
3 Correct 29 ms 700 KB Correct.
4 Correct 29 ms 700 KB Correct.
5 Correct 31 ms 724 KB Correct.
6 Correct 29 ms 3956 KB Correct.
7 Correct 35 ms 3768 KB Correct.
8 Correct 17 ms 7520 KB Correct.
9 Correct 29 ms 340 KB Correct.
10 Correct 29 ms 424 KB Correct.

Subtask #3
0.0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 30 ms 680 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 978 ms 29672 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #5
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 676 KB Correct.
2 Correct 26 ms 596 KB Correct.
3 Correct 30 ms 648 KB Correct.
4 Correct 26 ms 3632 KB Correct.
5 Correct 23 ms 324 KB Correct.

Subtask #6
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 26 ms 700 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 327 ms 1472 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 3.0

# Verdict Execution time Memory Grader output
1 Incorrect 1144 ms 4544 KB Wrong Answer.
2 Halted 0 ms 0 KB -