Submission #1007344

#	Time	Username	Problem	Language	Result	Execution time	Memory
1007344		dimashirik	Rabbit Carrot (LMIO19_triusis)	C++17	100 / 100	20 ms	4824 KiB

triusis

#include <bits/stdc++.h>

//#pragma gcc optimize("O3")

using namespace std;

using ll = long long;
const ll INF = 1e9 / 2;
const ll MOD = 1e9 + 7;
const ll eps = 1e-7;

template<typename W, typename T = typename enable_if<!is_same<W, string>::value, typename W::value_type>::type>
ostream &operator<<(ostream &out, const W &v) {
    out << "{ ";
    for (const auto &x: v) out << x << ", ";
    return out << '}';
}
template<class U, class V>
ostream &operator<<(ostream &out, const pair<U, V> &a) {
    return out << "(" << a.first << ", " << a.second << ")";
}
template<class U, class V>
istream &operator>>(istream &in, pair<U, V> &a) {
    return in >> a.first >> a.second;
}
template<typename W, typename T = typename enable_if<!is_same<W, string>::value, typename W::value_type>::type>
ifstream &operator>>(ifstream &out, const W &v) {
    for (const auto &x: v) out >> x << ", ";
}

long long max(long long a, long long b) {
    if (a < b) {
        return b;
    }
    return a;
}
long long min(long long a, long long b) {
    if (a < b) {
        return a;
    }
    return b;
}


void solve() {
    int n, m;
    cin >> n >> m;
    vector<int> v(n);
    for (int i = 0; i < n; i++) {
        cin >> v[i];
    }
    vector<int> b;
    for (int i = 0; i < n; i++) {
        if (m * (i + 1) - v[i] >= 0) {
            b.push_back(m * (i + 1) - v[i]);
        }
    }

    vector<int> dp(n + 1, INT32_MAX);
    dp[0] = INT32_MIN;
    for (int & i : b) {
        int ind = int(upper_bound(dp.begin(), dp.end(), i) - dp.begin());
        dp[ind] = i;
    }
    int ans = 0;
    for (int i = 1; i < n + 1; i++) {
        if (dp[i] == INT32_MAX) break;
        ans = i;
    }
    cout << n - ans;
}


signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    //    freopen("snakes.in", "r", stdin);
    //    freopen("snakes.out", "w", stdout);
    cout << std::fixed << std::setprecision(5);
    long long T = 1;
//    cin >> T;
    while (T--) {
        solve();
    }
    return 0;
}

Compilation message (stderr)

triusis.cpp: In function 'std::ifstream& operator>>(std::ifstream&, const W&)':
triusis.cpp:29:1: warning: no return statement in function returning non-void [-Wreturn-type]
   29 | }
      | ^

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 28 / 28
• Subtask 4: 37 / 37