Submission #6698511

Source Code Expand

<?php
fscanf(STDIN, "%d", $n);
$h = array_map('intval', explode(' ', trim(fgets(STDIN))));

for ($i = $n - 1; $i >= 1; $i--) {
    if ($h[$i - 1] === $h[$i] + 1) {
        $h[$i - 1]--;
    } elseif ($h[$i - 1] > $h[$i] + 1) {
        exit ('No'.PHP_EOL);
    }
}
echo 'Yes'.PHP_EOL;

Submission Info

Submission Time
Task C - Build Stairs
User hideyuk1
Language PHP7 (7.0.15)
Score 300
Code Size 294 Byte
Status AC
Exec Time 30 ms
Memory 16884 KiB

Judge Result

Set Name All Sample
Score / Max Score 300 / 300 0 / 0
Status
AC × 17
AC × 4
Set Name Test Cases
All sample_01, sample_02, sample_03, sample_04, testcase_01, testcase_02, testcase_03, testcase_04, testcase_05, testcase_06, testcase_07, testcase_08, testcase_09, testcase_10, testcase_11, testcase_12, testcase_13
Sample sample_01, sample_02, sample_03, sample_04
Case Name Status Exec Time Memory
sample_01 AC 12 ms 4728 KiB
sample_02 AC 9 ms 4604 KiB
sample_03 AC 9 ms 4604 KiB
sample_04 AC 9 ms 4604 KiB
testcase_01 AC 16 ms 10744 KiB
testcase_02 AC 22 ms 16884 KiB
testcase_03 AC 28 ms 16884 KiB
testcase_04 AC 29 ms 16884 KiB
testcase_05 AC 13 ms 8696 KiB
testcase_06 AC 15 ms 10744 KiB
testcase_07 AC 24 ms 16884 KiB
testcase_08 AC 27 ms 16884 KiB
testcase_09 AC 20 ms 16884 KiB
testcase_10 AC 21 ms 16884 KiB
testcase_11 AC 29 ms 16884 KiB
testcase_12 AC 9 ms 4604 KiB
testcase_13 AC 30 ms 16884 KiB