Submission #785316

# Submission time Handle Problem Language Result Execution time Memory
785316 2023-07-17T08:20:01 Z drdilyor Highway Tolls (IOI18_highway) C++17
0 / 100
86 ms 7116 KB
#include <bits/stdc++.h>
#include "highway.h"
#ifdef ONPC
    #include "t_debug.cpp"
#else
    #define debug(...) 42
#endif
using namespace std;
//namespace pbds = __gnu_pbds;
using ll = long long;
const int inf = 1e9;
const ll infl = 1e18;
const int RANDOM = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 rng(RANDOM);
template<typename T, typename U> istream& operator>>(istream& is, pair<T, U>& p) { return is >> p.first >> p.second; }
template<typename Cont> int sz(const Cont& cont) { return int(cont.size()); }
// template<typename Func> struct ycom { Func f; template<typename... T> auto operator()(T&&... args) { return f(*this, args...); } }; template<typename Func> ycom(Func) -> ycom<Func>;
template<typename T> typename vector<T>::iterator operator+(const vector<T>& x, int i) { return x.begin() + i ;};
const string fileio = "";
constexpr int tests = 1, nmax = 2e5, nlog = __lg(nmax), mod = 1e9+7;

void find_pair(int32_t n, std::vector<int32_t> u, std::vector<int32_t> v, int32_t a, int32_t b) {
    int m = u.size();
    vector<vector<pair<int,int>>> adj(n);

    for (int i = 0; i < m; i++) {
        adj[u[i]].emplace_back(v[i], i);
        adj[v[i]].emplace_back(u[i], i);
    }

    int base = ask(vector(m, 0));
    int l = 0, r = n;
    while (l < r-1) {
        int mid = (l + r) / 2;
        vector<int> w(n-1);
        fill(w.begin(), w.begin() + mid, 1);
        if (ask(w) == base) {
            l = mid;
        } else r = mid;
    }

    int s = l;

    l = 0, r = n;
    while (l < r-1) {
        int mid = (l + r) / 2;
        vector<int> w(n-1);
        fill(w.begin(), w.begin() + mid, 1);
        reverse(w.begin(), w.end());
        if (ask(w) == base) l = mid;
        else r = mid;
    }

    answer(s, n - 1 - l);
}
# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 256 KB Output is incorrect: {s, t} is wrong.
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Output is incorrect: {s, t} is wrong.
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 10 ms 976 KB Output is correct
2 Correct 21 ms 1784 KB Output is correct
3 Correct 20 ms 2528 KB Output is correct
4 Correct 86 ms 6996 KB Output is correct
5 Correct 60 ms 7076 KB Output is correct
6 Correct 78 ms 6996 KB Output is correct
7 Correct 56 ms 7008 KB Output is correct
8 Correct 59 ms 7116 KB Output is correct
9 Incorrect 54 ms 6964 KB Output is incorrect: {s, t} is wrong.
10 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Output is incorrect: {s, t} is wrong.
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 1104 KB Incorrect
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 1104 KB Incorrect
2 Halted 0 ms 0 KB -