Submission #42720

#TimeUsernameProblemLanguageResultExecution timeMemory
42720theknife2001Baloni (COCI15_baloni)C++14
100 / 100
238 ms19896 KiB
#include <bits/stdc++.h> using namespace std; const int N=1e6+55; int b[N]; int main() { int ans=0; int n; cin>>n; int x; for(int i=0;i<n;i++) { cin>>x; if(b[x]==0) { ans++; b[x-1]++; } else { b[x]--; b[x-1]++; } } cout<<ans<<endl; return 0; }
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