Submission #781519

#	Time	Username	Problem	Language	Result	Execution time	Memory
781519		kebine	Strange Device (APIO19_strange_device)	C++17	0 / 100	5043 ms	524288 KiB

strange_device

#include<bits/stdc++.h>
#define ll long long
#define fi first
#define sec second
#define pb push_back
#define pqueue priority_queue
#define int long long
#define pii pair<int,int>
#define supercepat ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(0);
using namespace std;
int tc,ans=0,n,a,b;
int in1,in2;
int lp;
map<pair<int,int>,int> freq;
void solve(int l,int r){
  int x,y;
  for(int i=l;i<=r;i++){
    x=((i+(i/b))%a);
    y=i%b;
    if(freq[{x,y}]==0) ans++;  
    freq[{x,y}]++;
  }
}
main(){
  supercepat;
  cin>>n>>a>>b;
  lp=a*b;
  for(int i=1;i<=n;i++){
    cin>>in1>>in2;
    if(n==1){
      if(in2-in1>=lp) cout<<lp<<endl;
      else{
        cout<<in2-in1+1<<endl;
      }
    }
    else solve(in1,in2);
  }
  if(n!=1) cout<<ans<<endl;
  
}

Compilation message (stderr)

strange_device.cpp:24:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   24 | main(){
      | ^~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30