oj.uz

Submission #491166

# Submission time Handle Problem Language Result Execution time Memory
491166 2021-11-30T16:41:49 Z inksamurai Po (COCI21_po) C++17
70 / 70
 10 ms 1100 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define rep(i,n) for(int i=0;i<n;i++)
#define crep(i,x,n) for(int i=x;i<n;i++)
#define drep(i,n) for(int i=n-1;i>=0;i--)
#define vec(...) vector<__VA_ARGS__>
#define _3cSpNGp ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
using pii=pair<int,int>;
using vi=vector<int>;
 
int main(){
_3cSpNGp;
	int n;
	cin>>n;
	vi a(n);
	rep(i,n){
		cin>>a[i];
	}
	vi stk;
	int ans=0;
	rep(i,n){
		if(sz(stk)==0 and a[i]){
			stk.pb(a[i]);
			ans=ans+1;
		}else{
			if(a[i]){
				while(sz(stk) and stk.back()>a[i]){
					stk.pop_back();
				}
				if(sz(stk)==0 or stk.back()!=a[i]){
					ans=ans+1;
					stk.pb(a[i]);
				}
			}else{
				stk.clear();
				// stk.pb(a[i]);
			}
		}
	}
	cout<<ans<<"\n";
//	
	return 0;
}

Subtask #1
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 5 ms 460 KB Output is correct
5 Correct 7 ms 588 KB Output is correct
6 Correct 10 ms 1100 KB Output is correct
7 Correct 9 ms 716 KB Output is correct