Submission #2246679

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Source Code Expand

#include <iostream>
#include <string>
#include <vector>

#define INC(i, a, b) for(int i = a; i < b; ++i)
#define DEC(i, a, b) for(int i = a; i > b; --i)
#define REP(i, n) INC(i, 0, n)

typedef unsigned int uint;
typedef unsigned long ul;
typedef long long  ll;
typedef unsigned long long ull;

void TFprint(bool b, std::string T, std::string F){
    if(b){
        std::cout << T << std::endl;
    }else{
        std::cout << F << std::endl;
    }
}

int judge(ull left, ull right){
    if(left < right){
        return 1;
    }else if(left > right){
        return -1;
    }else{
        return 0;
    }
}
int main(){
    int n; std::cin >> n;
    ull left = 0, right = 0;
    int ans = 1, i = 0;
    int inc_dec;

    std::cin >> left;
    std::cin >> right;
    i = 2;
    inc_dec = judge(left, right);

    while(true){
        //std::cout << "i: " << i << std::endl;
        left = right;
        std::cin >> right;
        i++;

        if(judge(left, right) * inc_dec == -1){
            ans++;
            if(i == n){
                break;
            }
            left = right;
            std::cin >> right;
            i++;
        }

        inc_dec = judge(left, right);

        if(i == n){
            break;
        }
    }
    std::cout << ans << std::endl;

    return 0;
}

Submission Info

Judge Result