Submission

[PPPP][P][P][P][P]

Score: 100

User: Dormon

Problemset: นก

Language: cpp

Time: 0.002 second

Submitted On: 2024-11-30 11:58:13

#include <iostream>
#include <cstring>
#include <vector>
#include <algorithm>
#include <functional>

#define debug(...) Debug(#__VA_ARGS__, __VA_ARGS__)
using namespace std;

template<typename T>
typename std::enable_if<std::is_integral<T>::value>::type
Debug(const char* name, T value) {
    std::cout << name << " : " << value << '\n';
}

template<typename T, typename... Args>
typename std::enable_if<std::is_integral<T>::value>::type
Debug(const char* names, T value, Args... args) {
    const char* comma = strchr(names, ',');
    std::cout.write(names, comma - names) << " : " << value << " | ";
    Debug(comma + 1, args...);
}

void solve(){
    int n;
    cin >> n;
    vector<int> v;
    v.push_back(0);
    for (int i = 0, a;i < n;i++){
        cin >> a;
        v.push_back(a);
    }
    v.push_back(0);
    auto calc = [&](int i) -> bool {
        return v[i] > v[i-1] && v[i] > v[i+1];
    };
    int ans = 0;
    for (int i = 1;i <= n;i++)
        ans += calc(i);
    cout << ans << '\n';
}

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    int q = 1; 
    //cin >> q;
    while (q--){
        solve();
    }
}