Submission #438839

#	Time	Username	Problem	Language	Result	Execution time	Memory
438839		KhoaHo	Rabbit Carrot (LMIO19_triusis)	C++11	0 / 100	3 ms	332 KiB

triusis

///KhoaHo///
#include<bits/stdc++.h>
using namespace std;
///define-zone
#define task "test"
#define vec vector
#define priq priority_queue
#define pf push_front
#define pb push_back
#define popb pop_back
#define popf pop_front
#define SZ(a) a.begin(), a.end()
#define SZZ(a, begin, end) a + begin, a + begin + end
#define fi first
#define se second
#define N int(5e5) + 1

///typedef-zone
typedef long long ll;
typedef unsigned long long ull;
typedef long double ldb;
typedef double db;
typedef pair<int, int> ii;
typedef pair<long long, long long> pll;
typedef pair<int, ii> iii;

///code-mau
template<class val> inline val gcd(val a, val b){ return (a ? gcd(b%a, a): b);}

void init()
{
    freopen(task".inp","r",stdin);
    freopen(task".out","w",stdout);
}

void fastio()
{
    ios_base::sync_with_stdio(NULL);
    cin.tie(NULL);
    cout.tie(NULL);
}
int n, m, a[N];
vec<int> dp;
int main()
{
    init();
    fastio();
    cin >> n >> m;
    for(int i = 1; i <= n; i++)
    {
        cin >> a[i];
        if(m*i - a[i] >= 0) dp.pb(m*i - a[i]);
    }
    vec<int> g;
    for(int i = 0; i < (int)dp.size(); i++)
    {
        int k = upper_bound(SZ(g), dp[i]) - g.begin();
        if(k == (int)g.size()) g.pb(dp[i]);
        else g[k] = dp[i];
    }
    ///for(int i = 0; i < dp.size(); i++) cout << dp[i] << " \n"[i == dp.size() - 1];
    cout << n - (int)g.size();
    return 0;
}

Compilation message (stderr)

triusis.cpp: In function 'void init()':
triusis.cpp:32:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |     freopen(task".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
triusis.cpp:33:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     freopen(task".out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 14
• Subtask 2: 0 / 21
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37