Submission #6687061


Source Code Expand

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#include <iostream>

using namespace std;

int n;
int a[100005];

int main(void)
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n;
	for(int i = 1; i <= n; i++) cin >> a[i];
	
	for(int i = 1; i <= n; i++){
		if(a[i-1] > a[i]){
			cout << "No" << endl;
			return 0;
		}
		if(a[i-1] < a[i]) a[i]--;
	}
	cout << "Yes" << endl;
	
	return 0;
}

Submission Info

Submission Time
Task C - Build Stairs
User leaf1415
Language C++14 (GCC 5.4.1)
Score 300
Code Size 366 Byte
Status AC
Exec Time 12 ms
Memory 640 KB

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 1 ms 256 KB
sample_02 AC 1 ms 256 KB
sample_03 AC 1 ms 256 KB
sample_04 AC 1 ms 256 KB
testcase_01 AC 7 ms 512 KB
testcase_02 AC 11 ms 640 KB
testcase_03 AC 11 ms 640 KB
testcase_04 AC 12 ms 640 KB
testcase_05 AC 4 ms 384 KB
testcase_06 AC 6 ms 384 KB
testcase_07 AC 11 ms 640 KB
testcase_08 AC 9 ms 640 KB
testcase_09 AC 9 ms 640 KB
testcase_10 AC 11 ms 640 KB
testcase_11 AC 11 ms 640 KB
testcase_12 AC 1 ms 256 KB
testcase_13 AC 12 ms 640 KB