# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
475186 | Ahmed57 | Po (COCI21_po) | C++14 | 13 ms | 1224 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
int main(){
ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
int n;cin>>n;long long arr[n+1]={0};
for(int i=1;i<=n;i++)cin>>arr[i];stack<int>s;
s.push(0);
long long ans = 0;
for(int i=1;i<=n;i++){
while(s.top()>arr[i]){
s.pop();ans++;
}
if(s.top()<arr[i])s.push(arr[i]);
}
ans+=s.size()-1;
cout<<ans<<"\n";
}
Compilation message (stderr)
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