oj.uz

Submission #578235

# Submission time Handle Problem Language Result Execution time Memory
578235 2022-06-16T09:02:56 Z johnf Game (APIO22_game) C++17
30 / 100
 265 ms 548 KB 
#include "game.h"
#include <bits/stdc++.h>

#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define for0(i, n) for (int i = 0; i < (int)(n); ++i)
#define for1(i, n) for (int i = 1; i <= (int)(n); ++i)
#define ford(i, n) for (int i = (int)(n)-1; i >= 0; --i)
#define fore(i, a, b) for (int i = (int)(a); i <= (int)(b); ++i)

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

using ll = long long;
using ld = long double;
using vi = vector<int>;

template <class T>
bool uin(T &a, T b) {
    return a > b ? (a = b, true) : false;
}
template <class T>
bool uax(T &a, T b) {
    return a < b ? (a = b, true) : false;
}

mt19937 rng(chrono::system_clock::now().time_since_epoch().count());

int n, k;

namespace sub3 {
vector<vi> adj;
stack<int> st;
int id = 0;
vi low, num;

bool eligible() { return n <= 1000; }

void init() {
    adj.assign(n, {});
    fore(i, 0, k - 2) { adj[i].pb(i + 1); }
}

bool dfs(int u) {
    low[u] = num[u] = ++id;
    st.push(u);
    for (auto v : adj[u]) {
        if (num[v]) {
            uin(low[u], num[v]);
        } else {
            if (dfs(v)) {
                return 1;
            }
            uin(low[u], low[v]);
        }
    }
    if (low[u] == num[u]) {
        int v;
        vector<int> vec;
        do {
            v = st.top();
            st.pop();
            low[v] = num[v] = 1e9;
            vec.pb(v);
        } while (v != u);
        if (vec.size() >= 2) {
            for (auto x : vec) {
                if (x < k) {
                    return 1;
                }
            }
        }
    }
    return 0;
}

int add_teleporter(int u, int v) {
    if (u == v) {
        if (u < k) {
            return 1;
        }
    } else {
        adj[u].pb(v);
    }
    low = num = vi(n);
    id = 0;
    for0(i, n) {
        if (!num[i]) {
            if (dfs(i)) {
                return 1;
            }
        }
    }
    return 0;
}
}

void init(int N, int K) {
    n = N;
    k = K;
    if (sub3::eligible()) {
        sub3::init();
    }
}

int add_teleporter(int u, int v) {
    if (n <= 1000) {
        return sub3::add_teleporter(u, v);
    }
}

Compilation message

game.cpp: In function 'int add_teleporter(int, int)':
game.cpp:119:1: warning: control reaches end of non-void function [-Wreturn-type]
  119 | }
      | ^

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 3 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 3 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 2 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 2 ms 208 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 3 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 2 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 2 ms 208 KB Output is correct
20 Correct 47 ms 348 KB Output is correct
21 Correct 6 ms 336 KB Output is correct
22 Correct 43 ms 464 KB Output is correct
23 Correct 49 ms 336 KB Output is correct
24 Correct 56 ms 336 KB Output is correct
25 Correct 253 ms 408 KB Output is correct
26 Correct 265 ms 500 KB Output is correct
27 Correct 214 ms 548 KB Output is correct
28 Correct 115 ms 336 KB Output is correct
29 Correct 252 ms 400 KB Output is correct

Subtask #4
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 3 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 2 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 2 ms 208 KB Output is correct
20 Correct 47 ms 348 KB Output is correct
21 Correct 6 ms 336 KB Output is correct
22 Correct 43 ms 464 KB Output is correct
23 Correct 49 ms 336 KB Output is correct
24 Correct 56 ms 336 KB Output is correct
25 Correct 253 ms 408 KB Output is correct
26 Correct 265 ms 500 KB Output is correct
27 Correct 214 ms 548 KB Output is correct
28 Correct 115 ms 336 KB Output is correct
29 Correct 252 ms 400 KB Output is correct
30 Runtime error 1 ms 348 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 3 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 2 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 2 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 0 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 2 ms 208 KB Output is correct
16 Correct 3 ms 208 KB Output is correct
17 Correct 2 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 2 ms 208 KB Output is correct
20 Correct 47 ms 348 KB Output is correct
21 Correct 6 ms 336 KB Output is correct
22 Correct 43 ms 464 KB Output is correct
23 Correct 49 ms 336 KB Output is correct
24 Correct 56 ms 336 KB Output is correct
25 Correct 253 ms 408 KB Output is correct
26 Correct 265 ms 500 KB Output is correct
27 Correct 214 ms 548 KB Output is correct
28 Correct 115 ms 336 KB Output is correct
29 Correct 252 ms 400 KB Output is correct
30 Runtime error 1 ms 348 KB Execution killed with signal 11
31 Halted 0 ms 0 KB -