Submission #1627905


Source Code Expand

#include <cstdio>

int main() {
  int N;
  scanf("%d", &N);

  int res=1;
  int prev;
  scanf("%d", &prev);

  int state=0;
  for (int i=1; i<N; ++i) {
    int A;
    scanf("%d", &A);

    if (state == 1) {
      if (prev > A) {
        ++res;
        state = 0;
      }
    } else if (state == -1) {
      if (prev < A) {
        ++res;
        state = 0;
      }
    } else if (state == 0) {
      if (prev < A) {
        state = 1;
      } else if (prev > A) {
        state = -1;
      }
    }

    prev = A;
  }

  printf("%d\n", res);
  return 0;
}

Submission Info

Submission Time
Task A - Sorted Arrays
User rsk0315
Language C++14 (GCC 5.4.1)
Score 300
Code Size 594 Byte
Status AC
Exec Time 12 ms
Memory 128 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:5:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &N);
                  ^
./Main.cpp:9:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &prev);
                     ^
./Main.cpp:14:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &A);
                    ^

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 1 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