Submission #533150

#	Time	Username	Problem	Language	Result	Execution time	Memory
533150		4fecta	Financial Report (JOI21_financial)	C++17	48 / 100	4078 ms	6784 KiB

Main

#include <bits/stdc++.h>

using namespace std;
#define ll long long
#define int ll
#define ld long double
#define pii pair<int, int>
#define f first
#define s second
#define boost() cin.tie(0), cin.sync_with_stdio(0)

const int MN = 300005;

int n, d, a[MN], ans = 1, bit[MN], dp[MN], dead[MN];
vector<int> xs;
map<int, int> mp;

void upd(int x, int val) {
    for (int i = x; i < MN; i += i & -i) bit[i] = max(bit[i], val);
}

int qry(int x) {
    int ret = 0;
    for (int i = x; i > 0; i -= i & -i) ret = max(ret, bit[i]);
    return ret;
}

int32_t main() {
    boost();

    cin >> n >> d;
    for (int i = 1; i <= n; i++) cin >> a[i], xs.push_back(a[i]);
    sort(xs.begin(), xs.end());
    xs.erase(unique(xs.begin(), xs.end()), xs.end());
    for (int i = 0; i < xs.size(); i++) mp[xs[i]] = i + 1;
    for (int i = 1; i <= n; i++) {
        dp[i] = 1, dead[i] = i;
        for (int j = 1; j < i; j++) {
            if (dead[j] < i - d) continue;
            if (a[j] < a[i]) dp[i] = max(dp[i], dp[j] + 1);
            else dead[j] = i;
        }
        ans = max(ans, dp[i]);
    }
    printf("%lld\n", ans);

    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int32_t main()':
Main.cpp:35:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |     for (int i = 0; i < xs.size(); i++) mp[xs[i]] = i + 1;
      |                     ~~^~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 20 / 20
• Subtask 4: 0 / 12
• Subtask 5: 0 / 5
• Subtask 6: 0 / 35