Submission #1221579


Source Code Expand

#include <stdio.h>
int main(void)
{
    int n;
    scanf("%d", &n);
    int prev_a;
    int trend = 0;
    int count = 1;

    scanf("%d", &prev_a);
    for (int i = 1; i < n; i++) {
        int a;
        scanf("%d", &a);
        if (a < prev_a) {
            if (trend == 1) {
                count++;
                trend = 0;
            } else if (trend == 0) {
                trend = -1;
            }
        } else if (a > prev_a) {
            if (trend == -1) {
                count++;
                trend = 0;
            } else if (trend == 0) {
                trend = 1;
            }
        }
        prev_a = a;
    }
    printf("%d\n", count);
    return 0;
}

Submission Info

Submission Time
Task A - Sorted Arrays
User muctera
Language C (GCC 5.4.1)
Score 300
Code Size 716 Byte
Status AC
Exec Time 13 ms
Memory 128 KB

Compile Error

./Main.c: In function ‘main’:
./Main.c:5:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ^
./Main.c:10:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &prev_a);
     ^
./Main.c:13:9: warning: ignoring return value of ‘scanf’, 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 0 ms 128 KB
sample_02.txt AC 0 ms 128 KB
sample_03.txt AC 0 ms 128 KB
subtask_1_01.txt AC 8 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 13 ms 128 KB
subtask_1_05.txt AC 13 ms 128 KB
subtask_1_06.txt AC 13 ms 128 KB
subtask_1_07.txt AC 13 ms 128 KB
subtask_1_08.txt AC 13 ms 128 KB
subtask_1_09.txt AC 13 ms 128 KB
subtask_1_10.txt AC 1 ms 128 KB
subtask_1_11.txt AC 1 ms 128 KB