Submission #767214

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
767214	2023-06-26 14:04:19	Trisanu_Das	Strange Device (APIO19_strange_device)	C++17	100 / 100	1391 ms	100212 KiB

strange_device

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef __int128 lll;
int n,curr;
ll a,b,ans,l,r,cc,pre=-1;
lll cyc;
map<ll,int> todo;
int main(){
  cin>>n>>a>>b;
  cyc=a/__gcd(a,b+1);
  cyc*=b;
  if (cyc>=LLONG_MAX) cc=LLONG_MAX;
  else cc=cyc;
  for (int i=1;i<=n;i++){
    cin>>l>>r;
    if (r-l>=cc){
      cout<<cc<<"\n";
      return 0;
    }
    if (l/cc!=r/cc){
      todo[l%cc]++;
      todo[cc]--;
      todo[0]++;
      todo[r%cc+1]--;
    }else{
      todo[l%cc]++;
      todo[r%cc+1]--;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20
• Subtask 8: 30 / 30