This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define int long long
int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    pair<int,int> pravoagolnik[n];
    for (int i=0;i<n;i++) {
        cin >> pravoagolnik[i].first >> pravoagolnik[i].second;
        pravoagolnik[i].first/=2;
        pravoagolnik[i].second/=2;
    }
    sort(pravoagolnik, pravoagolnik+n);
    int rez=pravoagolnik[0].first*pravoagolnik[0].second;
    for (int i=1;i<n;i++) {
        rez+=(pravoagolnik[i].first-pravoagolnik[i-1].first)*pravoagolnik[i].second;
    }
    cout << 4*rez;
}
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... | 
| # | Verdict  | Execution time | Memory | Grader output | 
|---|
| Fetching results... |