Submission #666307

#	Time	Username	Problem	Language	Result	Execution time	Memory
666307		ktkerem	Global Warming (CEOI18_glo)	C++17	0 / 100	119 ms	8124 KiB

glo

/*#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/
#include<bits/stdc++.h>
/**/
//typedef int ll;
typedef long long ll;
typedef unsigned long long ull;
typedef std::string str;
/*typedef __int128 vll;
typedef unsigned __int128 uvll;*/
#define llll std::pair<ll , ll>
#define pb push_back
#define pf push_front
#define halo cout << "hello\n"
#define fi first
#define sec second
#define all(a) a.begin() , a.end()
const ll limit = 1e15 + 7; 
const ll ous = 1e5 + 7;
const ll dx[4] = {-1 , 0 , 1 , 0} , dy[4] = {0,1,0,-1};
ll n , m;std::vector<ll> ar , ra;
std::vector<ll> lis , lde;
std::set<llll> st;
ll crlis = 0 , crlde = 0;
ll addlis(ll val){
    ll l = 0 , r = crlis;
    while(r > l){
        ll md = (l + r + 1)/2;
        if(lis[md] > val){
            r = md - 1;
        }
        else{
            l = md;
        }
    }
    if(lis[0] == -1 || lis[0] >= val){
        lis[0] = val;
        return 1;
    }
    crlis = std::max(crlis , l + 1);
    lis[l + 1] = val;
    return l+2;
}
ll addlde(ll val){
    ll l = 0 , r = crlde;
    while(r > l){
        ll md = (l + r + 1)/2;
        if(lde[md] > val){
            l = md;
        }
        else{
            r = md - 1;
        }
    }
    if(lde[0] == -1 || lde[0] <= val){
        lde[0] = val;
        return 1;
    }
    crlde = std::max(crlde , l + 1);
    lde[l + 1] = val;
    return l + 2;
}
ll check(ll val){
    ll l = 0 , r = crlde;
    while(r > l){
        ll md = (l + r + 1)/2;
        if(lde[md] > val){
            l = md;
        }
        else{
            r = md - 1;
        }
    }
    if(lde[0] == -1 || lde[0] <= val){
        return 0;
    }
    return l+1;
}
void solve(){
    std::cin >> n >> m;
    std::vector<ll> mem(n , 0);
    ar.resize(n , -1);
    ra.resize(n , -1);
    lde.resize(n , -1);
    lis.resize(n , -1);
    ll ans = 0;
    for(ll i = 0;n>i;i++){
        ll x;std::cin >> x;
        ar[i] = x;
        mem[i] = addlis(x);
        ans = std::max(ans  , mem[i]);
    }
    /*for(ll i = n-1;0<=i;i--){
        ll y = addlde(ar[i]);
        std::cout << y << "\n";
        for(ll i =0;crlde>=i;i++){
            std::cout << lde[i] << " ";
        }
        std::cout << "\n";
        ans = std::max(ans  , mem[i]);
    }
    std::cout << "\n";
    std::cout << ans << "\n";*/
    for(ll i = n-1;0<=i;i--){
        ll y = check(ar[i]);
        ans = std::max(ans , mem[i] + y);
        addlde(ar[i] + m);
    }
    //std::cout << "\n";
    std::cout << ans << "\n";

    return;/**/
}
signed main(){
    ll t=1;
    //std::cin >> t;
    ll o = 1;
    while(t--){ 
        //cout << "Case " << o++ << ":\n";
        solve();
    }
    return 0;
}/**/

Compilation message (stderr)

glo.cpp:5:78: warning: "/*" within comment [-Wcomment]
    5 | #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")/**/
      |                                                                               
glo.cpp: In function 'int main()':
glo.cpp:120:8: warning: unused variable 'o' [-Wunused-variable]
  120 |     ll o = 1;
      |        ^

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