Submission #393574

#	Time	Username	Problem	Language	Result	Execution time	Memory
393574		tinjyu	Reversing a Sequence (IOI16_reverse)	C++14	100 / 100	42 ms	5808 KiB

reverse

#include "reverse.h"
#include <iostream>
using namespace std;
std::vector<long long> reverse(std::vector<long long> a) {
	for(int i=0;i<a.size()/2;i++)
	{
		swap(a[i],a[a.size()-i-1]);
	}
	return a;
}

Compilation message (stderr)

reverse.cpp: In function 'std::vector<long long int> reverse(std::vector<long long int>)':
reverse.cpp:5:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 |  for(int i=0;i<a.size()/2;i++)
      |              ~^~~~~~~~~~~

• Subtask 1: 100 / 100