Submission #1305630


Source Code Expand

#include "bits/stdc++.h"
#define _CRT_SECURE_NO_WARNINGS
#define rep(i,n) for(int i = 0;i < n;i++)
#define REP(i,n,k) for(int i = n;i < k;i++)
#define P(p) cout << (p) << endl;
#define sP(p) cout << setprecision(15) << fixed << p << endl;
#define vi vector<int>
#define printv(v) for(int i = 0;i < v.size();i++)P(v[i]);
#define printt(a,b) cout << a << " " << b << endl; 
#define mp(a,b) make_pair(a,b)
#define pb(a) push_back(a)

using namespace std;
typedef long long ll;
typedef unsigned long long ull;
int dx[] = { 1, -1 , 0 , 0};
int dy[] = { 0,  0,  1, -1};
int MOD = 1e9 + 7;

void solve() {
  int n,ans = 1;
  int flag = 0;
  cin >> n;
  vector<int> A(n);
  for(int i = 0;i < n;i++){
    cin >> A[i];
  }
  for(int i = 1;i < n;i++){
    int a = A[i]-A[i-1];
    if(flag == -1){
      if(a > 0){
	ans++;
	flag = 0;
      }
    }
    else if(flag == 1){
      if(a < 0){
	ans++;
	flag = 0;
      }
    }else if(flag == 0){ 
      if(a > 0){
	flag = 1;
      }else if(a < 0){
	flag = -1;
      }
    }
  }
  P(ans);
}

int main() {
  solve();
  return 0;
}

Submission Info

Submission Time
Task A - Sorted Arrays
User pantacia1128
Language C++14 (GCC 5.4.1)
Score 300
Code Size 1062 Byte
Status AC
Exec Time 41 ms
Memory 640 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 17
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt
Case Name Status Exec Time Memory
sample_01.txt AC 1 ms 256 KB
sample_02.txt AC 1 ms 256 KB
sample_03.txt AC 1 ms 256 KB
subtask_1_01.txt AC 25 ms 512 KB
subtask_1_02.txt AC 20 ms 384 KB
subtask_1_03.txt AC 13 ms 384 KB
subtask_1_04.txt AC 41 ms 640 KB
subtask_1_05.txt AC 41 ms 640 KB
subtask_1_06.txt AC 41 ms 640 KB
subtask_1_07.txt AC 41 ms 640 KB
subtask_1_08.txt AC 41 ms 640 KB
subtask_1_09.txt AC 41 ms 640 KB
subtask_1_10.txt AC 1 ms 256 KB
subtask_1_11.txt AC 1 ms 256 KB