Submission #819161

#	Time	Username	Problem	Language	Result	Execution time	Memory
819161		TS_2392	Global Warming (CEOI18_glo)	C++14	27 / 100	31 ms	972 KiB

glo

#include <bits/stdc++.h>
#define pb push_back
#define lwb lower_bound
#define all(x) (x).begin(), (x).end()
using namespace std;
const int N = 2e5 + 3;
int n, x;
vector<int> lis;
void solve(int v){
    int i = lwb(all(lis), v) - lis.begin();
    if(i == lis.size()) lis.pb(v);
    else lis[i] = v;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    cin >> n >> x;
    for(int i = 1; i <= n; ++i){
        int a; cin >> a;
        if(x != 0) solve(a + x);
        solve(a);
    }
    cout << lis.size();
    return 0;
}

Compilation message (stderr)

glo.cpp: In function 'void solve(int)':
glo.cpp:11:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     if(i == lis.size()) lis.pb(v);
      |        ~~^~~~~~~~~~~~~

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