Järjestys

input/code.cpp: In function 'void reverse(int*, int, int)':
input/code.cpp:13:10: warning: statement has no effect [-Wunused-value]
     for(i;i<--num;i++)
          ^

#include <iostream>
#include <string>
#include <vector>
# include <sstream>

using namespace std;

void
reverse (int *list, int length, int num)
{
    int swap;
    int i=0;
    for(i;i<--num;i++)
    {
        swap=list[i];
        list[i]=list[num];
        list[num]=swap;
    }
}

int
atoi (string c)
{
	stringstream s;
	int i;
	s << c;
	s >> i;
	return i;
}

vector<int>
into_vec (string str, int size)
{
	vector<int> vec(size);
	istringstream ssin(str);
        int input, j = 0;
        while(ssin >> input) {
            vec[j] = input;
	    j++;
        }
	return vec;
}

int
main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	string in;
	int c;
	
	getline (cin, in);
	c = atoi (in);
	int vec[c];

	getline (cin, in);

	istringstream ssin(in);
	int inp, i, j;

	i = 0;
	while (ssin >> inp) {
		vec[i] = inp;
		i++;
	}
	cout << 2*c << "\n";
	for (i = c; i > 0; i--) {
		for (j = 0; j < c; j++) {
		//	cout << vec[j] << endl;
			if (vec[j] == i) {
				cout << j+1 << " " << i << " ";
				reverse (vec, c, j+1);
				reverse (vec, c, i);
				break;
			}
		}
	}
	cout << "\n";
	return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: TIME LIMIT EXCEEDED