Submission #382741

# Submission time Handle Problem Language Result Execution time Memory
382741 2021-03-28T06:27:42 Z ne4eHbKa Po (COCI21_po) C++17
20 / 70
14 ms 1516 KB
#include <bits/stdc++.h>
using namespace std;
#ifndef _LOCAL
//#pragma GCC optimize("O3,Ofast")
#else
#pragma GCC optimize("O0")
#endif
template<typename t> inline void umin(t &a, const t b) {a = min(a, b);}
template<typename t> inline void umax(t &a, const t b) {a = max(a, b);}
typedef pair<int, int> pii;
typedef long long ll;
typedef long double ld;
typedef int8_t byte;
ll time() {return chrono::system_clock().now().time_since_epoch().count();}
mt19937 rnd(time());
#define ft first
#define sd second
#define len(f) int((f).size())
#define bnd(f) (f).begin(), (f).end()
#define _ <<' '<<
const int inf = 1e9 + 5;
const ll inf64 = 4e18 + 5;
const int md = 998244353;
namespace MD {
    void add(int &a, const int b) {if((a += b) >= md) a -= md;}
    void sub(int &a, const int b) {if((a -= b) < 0) a += md;}
    int prod(const int a, const int b) {return ll(a) * b % md;}
};

void solve() {
    int n; cin >> n;
    stack<int> f;
    int ans = 0;
    while(n--) {
        int v; cin >> v;
        while(!f.empty() && f.top() > v)
            f.pop(), ++ans;
        if(f.empty() || f.top() != v)
            f.push(v);
    }
    cout << ans + len(f) << endl;
}

signed main() {
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#ifndef _LOCAL
//    freopen("file.in", "r", stdin);
//    freopen("file.out", "w", stdout);
#else
    system("color a");
    freopen("in.txt", "r", stdin);
    int t; cin >> t;
    while(t--)
#endif
    solve();
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Incorrect 1 ms 364 KB Output isn't correct
4 Incorrect 6 ms 492 KB Output isn't correct
5 Incorrect 8 ms 492 KB Output isn't correct
6 Correct 13 ms 1516 KB Output is correct
7 Incorrect 14 ms 1388 KB Output isn't correct