Submission #1308161

#TimeUsernameProblemLanguageResultExecution timeMemory
1308161athenaLasers (NOI19_lasers)C++20
0 / 100
5 ms7224 KiB
#include <bits/stdc++.h>
using namespace std;
#define int long long int
int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int l,n;
    cin>>l>>n;
    //int arr[n];
    int ans=0;
      int x;
      cin>>x;
        int a;
        cin>>a;
      vector<int>arr(l,0);
      for(int i=0;i<a;i++)
      {
        arr[i]++;
      } 
      for(int i=l-a;i<l;i++)
      {
        arr[i]++;
      }  
      for(int i=0;i<l;i++)
      {
        if(arr[i]==2)
          ans++;
      }  
    cout<<ans<<endl;
    return 0;
    
}

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