Submission #812008

#	Time	Username	Problem	Language	Result	Execution time	Memory
812008		vjudge1	Financial Report (JOI21_financial)	C++17	14 / 100	47 ms	4656 KiB

Main

#ifdef Home
#define _GLIBCXX_DEBUG
#endif // Home

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

int lg2(int x) {
    return 31 - __builtin_clz(x);
}

main() {
#ifdef Home
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif // Home
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    
    int n, d;
    cin >> n >> d;
    int arr[n];
    for(int i = 0; i < n; ++ i) {
        cin >> arr[i];
    }
    int ans = 0;
    for(int msk = (1<<n); msk --> 0;) {
        int k = 0, tmp = msk, pr = -1, cr, mx = -1;
        for(; tmp; tmp -= (-tmp&tmp)) {
            cr = lg2(-tmp&tmp);
            if(pr != -1 && cr - pr > d) {
                k = 0;
                break;
            }
            if(mx < arr[cr]) {
                ++ k;
                mx = arr[cr];
            }
            pr = cr;
        }
        if(pr == n - 1) {
            ans = max(ans, k);
        }
    }
    cout << ans;
}

Compilation message (stderr)

Main.cpp:16:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   16 | main() {
      | ^~~~

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