#define SIZE 100000000
long long array[SIZE];

int main(void)
{
clock_t t0 = clock();
std::sort(array, array + SIZE, std::less<long long>());
clock_t t1 = clock();

printf("%g[sec]\n", (double)(t1 - t0) / CLOCKS_PER_SEC); //8.245[sec] ・・・あれ？　何だこりゃ
}