Submission #378408

#	Time	Username	Problem	Language	Result	Execution time	Memory
378408		limabeans	Po (COCI21_po)	C++17	70 / 70	13 ms	1132 KiB

Main

#include <bits/stdc++.h>
using namespace std;
 
template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl
 
 
 
 
 
using ll = long long;
 
 
const int maxn = 1e6 + 5;
 
 
 
int n;
vector<int> a;
 
int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);  cout.tie(0);
 
    cin>>n;
    a.resize(n);
    for (int i=0; i<n; i++) {
	cin>>a[i];
    }
 
 
    int res = n;
    vector<int> stk = {-1};
    
    for (int x: a) {
	while (stk.back() > x) {
	    stk.pop_back();
	}
	if (stk.back() == x) {
	    if (x != 0) {
		res--;
	    }
	} else {
	    stk.push_back(x);
	}
    }

    for (int x: a) {
	if (x == 0) {
	    res--;
	}
    }
 
    cout<<res<<endl;    
    return 0;
}

• Subtask 1: 70 / 70