Submission #137098

#TimeUsernameProblemLanguageResultExecution timeMemory
137098KLPPUnija (COCI17_unija)C++14
80 / 100
1082 ms29560 KiB
#include<bits/stdc++.h>

using namespace std;
typedef long long int lld;
typedef pair<lld,lld> pii;
#define rep(i,a,b) for(int i=a;i<b;i++)

int main(){
  int n;
  cin>>n;
  pii arr[n];
  rep(i,0,n){
    cin>>arr[i].first>>arr[i].second;
    arr[i].first/=2;
    arr[i].second/=2;
  }
  sort(arr,arr+n);
  reverse(arr,arr+n);
  lld max_second=0;
  lld ans=0;
  rep(i,0,n){
    ans+=arr[i].first*(max(max_second,arr[i].second)-max_second);
    max_second=max(max_second,arr[i].second);
  }
  cout<<ans*4<<endl;
  return 0;
}
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...