Submission #1353653

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Source Code Expand

#include <vector>
#include <iostream>
#include <utility>
#include <algorithm>
#include <string>
#include <deque>
#include <queue>
#include <tuple>
#include <queue>
#include <functional>
#include <cmath>
#include <iomanip>
#include <map>
#include <set>
#include <numeric>
#include <unordered_map>
#include <unordered_set>
#include <complex>
#include <iterator>
#include <array>
#include <memory>
#include <stack>
#define vi vector<int>
#define vvi vector<vector<int> >
#define ll long long int
#define vl vector<ll>
#define vvl vector<vector<ll>>
#define vb vector<bool>
#define vc vector<char>
#define vs vector<string>
#define ld long double
#define INF 1e9
#define EPS 0.0000000001
#define rep(i,n) for(int i=0;i<n;i++)
#define loop(i,s,n) for(int i=s;i<n;i++)
#define all(in) in.begin(), in.end()
template<class T, class S> void cmin(T &a, const S &b) { if (a > b)a = b; }
template<class T, class S> void cmax(T &a, const S &b) { if (a < b)a = b; }
#define MAX 9999999
using namespace std;
typedef pair<int, int> pii;
typedef pair<double,double>pdd;
typedef pair<ll,ll>pll;
int main(){
    int n; cin>>n;
    vi v(n);rep(i,n)cin>>v[i];
    vi dp(n,0);
    int cnt=1,flag = 3,ans;
    rep(i,n-1){
        if(v[i]<v[i+1]){
            if(!i||flag==3){flag=1;}
            if(flag!=1){cnt++;flag=3;continue;}
            flag=1;
        }else if(v[i]>v[i+1]){
            if(!i||flag==3){flag=0; }
            if(flag!=0){cnt++;flag=3; continue;}
            flag=0;
        }else continue;
    }
    cout<<cnt<<endl;
}

Submission Info

Judge Result