Submission #1241611

#	Time	Username	Problem	Language	Result	Execution time	Memory
1241611		Jer	Global Warming (CEOI18_glo)	C++20	15 / 100	2095 ms	1860 KiB

glo

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 2e5 + 5;
int b[MAXN], a[MAXN];
int n, x;

int find_size()
{
    vector<int> sub;
    for (int i = 0; i < n; i++)
    {
        auto it = lower_bound(sub.begin(), sub.end(), a[i]);
        if (it == sub.end())
            sub.push_back(a[i]);
        else
            *it = a[i];
    }
    return sub.size();
}

int main()
{
    scanf("%d%d", &n, &x);

    for (int i = 0; i < n; i++)
        scanf("%d", &b[i]);

    int res = 0;
    for (int i = 0; i < n; i++)
        for (int j = i; j < n; j++)
            for (int c = -x; c <= x; c++)
            {
                for (int k = 0; k < n; k++)
                {
                    if (k >= i and k <= j)
                        a[k] = b[k] + x;
                    else
                        a[k] = b[k];
                }
                res = max(res, find_size());
            }

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

    return 0;
}

Compilation message (stderr)

glo.cpp: In function 'int main()':
glo.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     scanf("%d%d", &n, &x);
      |     ~~~~~^~~~~~~~~~~~~~~~
glo.cpp:28:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |         scanf("%d", &b[i]);
      |         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 13
• Subtask 4: 0 / 10
• Subtask 5: 0 / 20
• Subtask 6: 0 / 17
• Subtask 7: 0 / 25