oj.uz

답안 #378408

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
378408 2021-03-16T17:22:54 Z limabeans Po (COCI21_po) C++17
70 / 70
 13 ms 1132 KB 
#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
70.0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 5 ms 492 KB Output is correct
5 Correct 7 ms 620 KB Output is correct
6 Correct 13 ms 1132 KB Output is correct
7 Correct 12 ms 748 KB Output is correct