Submission #25879

#	Time	Username	Problem	Language	Result	Execution time	Memory
25879		nibnalin	Swap (BOI16_swap)	C++14	0 / 100	0 ms	2800 KiB

swap

#include <iostream>
#include <cstdio>
#include <vector>
using namespace std;

const int maxn = int(2e5)+5;

int A[maxn];

int main(void)
{
	int n;
	scanf("%d", &n);
	for(int i = 1;i <= n;i++) scanf("%d", &A[i]);

	for(int i = 1;i <= n;i++)
	{
		if(i*2+1 > n) break;
		if(A[i*2] < A[i] && A[i*2] < A[i*2+1])
		{
			swap(A[i], A[i*2]);
		}
		else if(A[i*2+1] < A[i] && A[i*2+1] < A[i*2])
		{
			swap(A[i], A[i*2+1]);
		}
	}
	for(int i = 1;i <= n;i++) printf("%d ", A[i]);
	printf("\n");
}

Compilation message (stderr)

swap.cpp: In function 'int main()':
swap.cpp:13:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
swap.cpp:14:46: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 1;i <= n;i++) scanf("%d", &A[i]);
                                              ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 27
• Subtask 4: 0 / 20
• Subtask 5: 0 / 32