# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
313867 | BeanZ | Untitled (POI11_tem) | C++14 | 268 ms | 39288 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
// I_Love_LPL
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
const int N = 1e6 + 5;
ll x[N], y[N];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
if (fopen("A.inp", "r")){
freopen("test.inp", "r", stdin);
freopen("test.out", "w", stdout);
}
ll n;
cin >> n;
for (int i = 1; i <= n; i++){
cin >> y[i] >> x[i];
}
deque<ll> dq;
ll ans = 1, pos = 0;
for (int i = 1; i <= n; i++){
while (dq.size()){
if (y[i] >= y[dq.back()]) dq.pop_back();
else break;
}
dq.push_back(i);
while (dq.size()){
if (y[dq.front()] > x[i]){
pos = dq.front();
dq.pop_front();
} else break;
}
ans = max(ans, i - pos);
}
cout << ans;
}
/*
*/
Compilation message (stderr)
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