oj.uz

Submission #342950

# Submission time Handle Problem Language Result Execution time Memory
342950 2021-01-03T09:09:38 Z vonatlus Money (IZhO17_money) C++14
0 / 100
 1 ms 364 KB 
/// wa 

#pragma GCC optimize("O3")
//#pragma comment(linker, "/STACK:36777216")

#include<bits/stdc++.h>

#define x first
#define y second
#define pb push_back
#define sz(x) (int) x.size()
#define all(z) (z).begin(), (z).end()
 
using namespace std;

using ll = long long;
using pii = pair<int, int>;                                   

const int MOD = 1e9 + 7; 
const int INF = 1e9 + 1e2;
  
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

void fin() {
#ifdef AM
    freopen(".in", "r", stdin);
#endif        
}                   

const bool flag = 0;

const int N = 1e5+10;

void ma1n() {
    int n;
    cin >> n;
    vector<int> a(n);
    for (int& x : a) {
        cin >> x;
    }
    int cnt = 0;
    set<int> s;
    vector<int> cur;
    a.pb(-INF), n++;
    for (int i = 0; i < n; ++i) {
        if (i && a[i] >= a[i-1]) {
            cur.pb(a[i]);
        } else {
            for (int j = 0; j < sz(cur);) {
                auto it = s.upper_bound(cur[j]);
                cnt++;
                if (it == s.end() || (!s.empty() && it == prev(s.end()))) {
                    for (int k = j; k < sz(cur); ++k) {
                        s.insert(cur[k]);
                    }
                    break; 
                }
                int x = *next(it);
                while (j < sz(cur) && cur[j] <= x) {
                    s.insert(cur[j]), j++;  
                }    
            }
            cur = {a[i]};
        }
    }
    cout << cnt;
} 

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(nullptr), fin();
    int ts = 1;
    if (flag) {
        cin >> ts;
    }
    while (ts--) {
        ma1n(); 
    }
    return 0;
}

Subtask #1
0 / 9.0

# 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 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# 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 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# 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 Halted 0 ms 0 KB -

Subtask #4
0 / 55.0

# 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 Halted 0 ms 0 KB -