Submission #1221279


Source Code Expand

#define REP(i,n) for(int i=0; i<(int)(n); i++)

#include <cstdio>
inline int getInt(){ int s; scanf("%d", &s); return s; }

#include <set>

using namespace std;

int main(){
  const int n = getInt();

  int ans = 1;
  int prev = -1;
  int sign = 0;

  REP(i,n){
    const int cur = getInt();

    if(prev != -1) {
      const int nextSign = prev == cur ? 0 : prev < cur ? 1 : -1;
      if(sign == 0) {
        sign = nextSign;
      } else {
        if(nextSign != 0 && sign != nextSign) {
          sign = 0;
          ans++;
        }
      }
    }

    prev = cur;
  }

  printf("%d\n", ans);

  return 0;
}

Submission Info

Submission Time
Task A - Sorted Arrays
User yukim
Language C++14 (GCC 5.4.1)
Score 300
Code Size 649 Byte
Status AC
Exec Time 12 ms
Memory 128 KB

Compile Error

./Main.cpp: In function ‘int getInt()’:
./Main.cpp:4:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
 inline int getInt(){ int s; scanf("%d", &s); return s; }
                                            ^

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 128 KB
sample_02.txt AC 0 ms 128 KB
sample_03.txt AC 1 ms 128 KB
subtask_1_01.txt AC 7 ms 128 KB
subtask_1_02.txt AC 6 ms 128 KB
subtask_1_03.txt AC 4 ms 128 KB
subtask_1_04.txt AC 12 ms 128 KB
subtask_1_05.txt AC 12 ms 128 KB
subtask_1_06.txt AC 12 ms 128 KB
subtask_1_07.txt AC 12 ms 128 KB
subtask_1_08.txt AC 12 ms 128 KB
subtask_1_09.txt AC 12 ms 128 KB
subtask_1_10.txt AC 1 ms 128 KB
subtask_1_11.txt AC 1 ms 128 KB