Submission #1274121

#	Time	Username	Problem	Language	Result	Execution time	Memory
1274121		sakka	Global Warming (CEOI18_glo)	C++20	10 / 100	23 ms	1620 KiB

glo

#include<bits/stdc++.h>
#define ll long long
#define fi first
#define sec second
#define pb push_back
#define pll pair<long long, long long>
using namespace std;
void freop(){
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
}
const ll INF = 1e18, mod = 1e9+7;
ll n, x;

void solve(){
    cin >> n >> x;
    vector<ll> lis;
    for(int i=1; i<=n; i++){
        ll val; cin >> val;
        auto it = lower_bound(lis.begin(), lis.end(), val) - lis.begin();
        // cout << i << "      " << it << endl;
        if(it == lis.size()) lis.pb(val);
        else lis[it] = val;

        // cout << i << " " << lis.size() << endl;
        // for(ll nm : lis) cout << nm << " "; cout << endl;;
    }

    cout << lis.size() << endl;
}

int main(){
    ios_base :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
    // freop();
    solve();
}   

Compilation message (stderr)

glo.cpp: In function 'void freop()':
glo.cpp:9:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
glo.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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