Submission #846965

#	Time	Username	Problem	Language	Result	Execution time	Memory
846965		SUNWOOOOOOOO	Financial Report (JOI21_financial)	C++17	48 / 100	187 ms	191728 KiB

Main

#include <bits/stdc++.h>
using namespace std;
const int mxN = 7005;
int n, d, A[mxN], dp[mxN], pass[mxN][mxN];
vector <int> va;

int main()
{
    scanf("%d %d", &n, &d);
    for (int i = 1; i <= n; i++) {
        scanf("%d", &A[i]);
        va.push_back(A[i]);
    }
    sort(va.begin(), va.end());
    va.erase(unique(va.begin(), va.end()), va.end());
    for (int i = 1; i <= n; i++) A[i] = lower_bound(va.begin(), va.end(), A[i]) - va.begin() + 1;

    for (int i = 1; i < n; i++){
        for (int j = i + 1, last = i; j <= n; j++){
            if (j - last <= d && A[i] < A[j]) pass[i][j] = 1;
            if (j - last <= d && A[i] >= A[j]) last = j;
        }
    }

    int ans = 0;
    for (int i = 1; i <= n; i++){
        dp[i] = 1;
        for (int j = 1; j < i; j++){
            if (!pass[j][i]) continue;
            dp[i] = max(dp[i], dp[j] + 1);
        }
        ans = max(ans, dp[i]);
    }

    printf("%d\n", ans);

    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d %d", &n, &d);
      |     ~~~~~^~~~~~~~~~~~~~~~~
Main.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%d", &A[i]);
      |         ~~~~~^~~~~~~~~~~~~

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