Submission #259889

#	Time	Username	Problem	Language	Result	Execution time	Memory
259889		Kenzo_1114	Global Warming (CEOI18_glo)	C++17	28 / 100	2098 ms	1860 KiB

glo

#include<bits/stdc++.h>
using namespace std;
const int MAXN = 200010;
const int INF = 2e9 + 9;

int n, x, t[MAXN], dp[MAXN]; 

int calc()
{
	for(int i = 0; i < n; i++)	dp[i] = INF;

	int mx = 0;
	for(int i = 0; i < n; i++)
	{
		int it = lower_bound(dp, dp + n, t[i]) - dp;
		dp[it] = t[i];
		mx = max(mx, it);
	}

	return mx + 1;
}

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

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

	int ans = 0;
	for(int i = 0; i < n; i++)
	{
		t[i] -= x;
		ans = max(ans, calc());
	}

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

Compilation message (stderr)

glo.cpp: In function 'int main()':
glo.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &x);
  ~~~~~^~~~~~~~~~~~~~~~~
glo.cpp:27:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 0; i < n; i++) scanf("%d", &t[i]);
                             ~~~~~^~~~~~~~~~~~~

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