Submission #526025

#TimeUsernameProblemLanguageResultExecution timeMemory
526025spike1236Money (IZhO17_money)C++14
100 / 100
921 ms58164 KiB
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define ll long long
#define ld long double
#define all(_v) _v.begin(), _v.end()
#define sz(_v) (int)_v.size()
#define pii pair <int, int>
#define pll pair <ll, ll>
#define veci vector <int>
#define vecll vector <ll>

const int dx[4] = {1, -1, 0, 0};
const int dy[4] = {0, 0, -1, 1};
const double PI = 3.1415926535897932384626433832795;
const double eps = 1e-9;
const int MOD1 = 1e9 + 7;
const int MOD2 = 998244353;

const int MAXN = 1e6 + 10;
int n;
int a[MAXN];

void solve() {
    cin >> n;
    for(int i = 1; i <= n; ++i) cin >> a[i];
    int ans = 0;
    set <int> st;
    st.insert(1e9);
    for(int i = 1; i <= n; ) {
        int j = i + 1;
        int val = *st.upper_bound(a[i]);
        st.insert(a[i]);
        while(j <= n && a[j] >= a[j - 1] && a[j] <= val) st.insert(a[j]), ++j;
        ++ans;
        i = j;
    }
    cout << ans;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int CNT_TESTS = 1;
    ///cin >> CNT_TESTS;
    for(int NUMCASE = 1; NUMCASE <= CNT_TESTS; ++NUMCASE) {
        solve();
        if(NUMCASE != CNT_TESTS) cout << '\n';
    }
    return 0;
}
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