Submission #384211

#	Time	Username	Problem	Language	Result	Execution time	Memory
384211		kaplanbar	Untitled (POI11_tem)	C++14	Compilation error	0 ms	0 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n;
    cin >> n;

    vector<pair<ll,ll>> v(n);

    for(int i = 0; i < n; i++) {
        cin >> v[i].first >> v[i].second;
    }

    int ans = 0;

    int j = 0;
    multiset<ll> s;
    int ans = 0;
    for(int i = 0; i < n; i++) {
        j = max(j, i);
        while(j < n && (s.empty() || v[j].second >= -(*s.begin()))) {
            s.insert(-v[j].first);
            j++;
        }
        ans = max(ans, j - i);
        s.erase(s.find(-v[i].first));
    }

    cout << ans;

    return 0;
}

Compilation message (stderr)

tem.cpp: In function 'int main()':
tem.cpp:21:9: error: redeclaration of 'int ans'
   21 |     int ans = 0;
      |         ^~~
tem.cpp:17:9: note: 'int ans' previously declared here
   17 |     int ans = 0;
      |         ^~~