Submission #731672

#	Time	Username	Problem	Language	Result	Execution time	Memory
731672		Toxtaq	Global Warming (CEOI18_glo)	C++17	25 / 100	2068 ms	3100 KiB

glo

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n, x, res = 0;
    cin >> n >> x;
    vector<int>t(n);
    for(int i = 0;i < n;++i)cin >> t[i];
    if(x == 0){
        vector<int>tempo;
        for(int k = 0;k < n;++k){
            int pos = lower_bound(tempo.begin(), tempo.end(), t[k]) - tempo.begin();
            if(pos == tempo.size())tempo.push_back(t[k]);
            else tempo[pos] = t[k];
        }
        cout << tempo.size();
        return 0;
    }
    for(int i = -x;i <= x;++i){
        for(int l = 0;l < n;++l){
            vector<int>modif;
            modif = t;
            for(int r = l;r < n;++r){
                modif[r] += i;
                vector<int>tempo;
                for(int k = 0;k < n;++k){
                    int pos = lower_bound(tempo.begin(), tempo.end(), modif[k]) - tempo.begin();
                    if(pos == tempo.size())tempo.push_back(modif[k]);
                    else tempo[pos] = modif[k];
                }
                res = max(res, (int)tempo.size());
            }
        }
    }
    cout << res;
}

Compilation message (stderr)

glo.cpp: In function 'int main()':
glo.cpp:13:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |             if(pos == tempo.size())tempo.push_back(t[k]);
      |                ~~~~^~~~~~~~~~~~~~~
glo.cpp:28:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |                     if(pos == tempo.size())tempo.push_back(modif[k]);
      |                        ~~~~^~~~~~~~~~~~~~~

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