제출 #1337551

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1337551		Rafael_Augusto	Rabbit Carrot (LMIO19_triusis)	C++20	100 / 100	21 ms	2044 KiB

triusis

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pb push_back
#define f first
#define s second
#define get(i, v) get<i>(v)
#define all(v) v.begin(), v.end()
#define dbg(v) cerr << #v << " = " << v << "\n"
#define fall(i, s, n) for(int i=s; i<n; i++)
#define rfall(i, s, n) for(int i=s; i>=n; i--)

typedef pair<int, int> pii;
typedef tuple<int, int, int> trio;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

void setIO(string name){
    freopen((name+".in").c_str(), "r", stdin);
    freopen((name+".out").c_str(), "w", stdout);
}

int32_t main(){
    ios::sync_with_stdio(0); cin.tie(0);

    int n, m; cin >> n >> m;

    deque<int> lis; lis.pb(0);

    fall(i, 1, n+1){
        int p; cin >> p;

        p -= m*i;

        int j = lower_bound(all(lis), p)-lis.begin()-1;

        if(j == -1) lis.push_front(p);
        else if(j+1 != lis.size()) lis[j]=p;
    }

    int k = lis.size();

    cout << n+1-k << "\n";
}

컴파일 시 표준 에러 (stderr) 메시지

triusis.cpp: In function 'void setIO(std::string)':
triusis.cpp:20:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |     freopen((name+".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
triusis.cpp:21:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     freopen((name+".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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