Submission #969222

#	Time	Username	Problem	Language	Result	Execution time	Memory
969222		vjudge1	Global Warming (CEOI18_glo)	C++17	28 / 100	2074 ms	1116 KiB

glo

#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 1;
const int INF = 2e9;
int arr[N] , ans;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    int n,x; cin >> n >> x;
    for (int i=1;i<=n;i++) cin >> arr[i];
    for (int i=1;i<=n;i++) {
        arr[i] -= x;
        vector<int> dp;
        for (int j=1;j<=n;j++) {
            int idx = lower_bound(dp.begin(), dp.end(), arr[j]) - dp.begin();
            if (idx==dp.size()) dp.push_back(arr[j]);
            dp[idx] = arr[j];
        }
        ans = max(ans, int(dp.size()));
    }
    cout << ans;
    return 0;
}

Compilation message (stderr)

glo.cpp: In function 'int main()':
glo.cpp:16:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |             if (idx==dp.size()) dp.push_back(arr[j]);
      |                 ~~~^~~~~~~~~~~

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