Files
OI-source/history_source/挑战程序设计竞赛/2.3.2.4.cpp
2023-08-03 09:22:52 +08:00

28 lines
383 B
C++

#include<cstdio>
#include<algorithm>
#define INF ((int)1<<31-1)
using namespace std;
int n,a[1005],dp[1005];
void solve()
{
fill(dp,dp+n,INF);
for(int i=1;i<n;i++)
*lower_bound(dp,dp+n,a[i])=a[i];
printf("%d\n",lower_bound(dp,dp+n,INF)-dp);
}
void init()
{
scanf("%d",&n);
for(int i=0;i<n;i++) scanf("%d",a+i);
}
int main()
{
init();
solve();
return 0;
}
/*
5
4 2 3 1 5
*/