CSES - HIIT Open 2024 - Results
Submission details
Task:Key cutting
Sender:Otis++
Submission time:2024-11-16 15:43:20 +0200
Language:C++ (C++17)
Status:READY
Result:ACCEPTED
Test results
testverdicttime
#1ACCEPTED0.00 sdetails
#2ACCEPTED0.00 sdetails
#3ACCEPTED0.00 sdetails
#4ACCEPTED0.00 sdetails
#5ACCEPTED0.00 sdetails
#6ACCEPTED0.00 sdetails
#7ACCEPTED0.00 sdetails
#8ACCEPTED0.00 sdetails
#9ACCEPTED0.02 sdetails
#10ACCEPTED0.02 sdetails
#11ACCEPTED0.02 sdetails
#12ACCEPTED0.02 sdetails
#13ACCEPTED0.03 sdetails
#14ACCEPTED0.03 sdetails

Code

#include<bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
    
    int n;
    cin >> n;

    stack<int> st;
    st.push(0);
    int ans = 0;

    for (int i = 1; i <= n; i++) {

        int x;
        cin >> x;

        while (!st.empty() && st.top() > x) st.pop();

        if (st.empty() || st.top() < x) {
            ans++;
            st.push(x);
        }

    }

    cout << ans;

}

Test details

Test 1

Verdict: ACCEPTED

input
3
1 2 1

correct output
2

user output
2

Test 2

Verdict: ACCEPTED

input
1
0

correct output
0

user output
0

Test 3

Verdict: ACCEPTED

input
1
9

correct output
1

user output
1

Test 4

Verdict: ACCEPTED

input
100
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

correct output
0

user output
0

Test 5

Verdict: ACCEPTED

input
100
0 0 0 1 1 0 0 0 0 1 1 1 0 1 1 ...

correct output
25

user output
25

Test 6

Verdict: ACCEPTED

input
100
2 1 2 1 2 0 0 0 1 1 2 2 1 2 2 ...

correct output
41

user output
41

Test 7

Verdict: ACCEPTED

input
100
36 5 10 37 94 59 20 31 64 2 58...

correct output
99

user output
99

Test 8

Verdict: ACCEPTED

input
100
228768416 32415139 952687252 6...

correct output
100

user output
100

Test 9

Verdict: ACCEPTED

input
100000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

correct output
0

user output
0

Test 10

Verdict: ACCEPTED

input
100000
1 1 1 0 0 1 0 0 0 0 1 0 1 0 0 ...

correct output
24965

user output
24965

Test 11

Verdict: ACCEPTED

input
100000
2 1 2 2 2 2 2 1 1 0 1 1 0 1 1 ...

correct output
38968

user output
38968

Test 12

Verdict: ACCEPTED

input
100000
4 4 5 4 4 5 0 2 2 1 4 4 1 0 5 ...

correct output
59156

user output
59156

Test 13

Verdict: ACCEPTED

input
100000
18 5 6 16 8 10 1 7 4 15 5 9 19...

correct output
82598

user output
82598

Test 14

Verdict: ACCEPTED

input
100000
33 37 37 86 42 38 18 10 77 57 ...

correct output
94897

user output
94897