Järjestys

#include <iostream>
#include <sstream>
#include <cstdlib>

using namespace std;

int main() {
	std::ostringstream turns_oss;

	unsigned int length;
	unsigned int turns_count = 0;
	
    cin >> length;
    
    int array[length];
    
    for (unsigned int i=0; i<length-1; i++) {
    	char input[7];
    	cin.getline(input, 6, ' ');
    	array[i] = atoi(input);
    }
    char input[7];
    cin.getline(input, 6);
    array[length-1] = atoi(input);
    
    
    int lastnotdone(length); // This is same as:
    --lastnotdone;           // int lastnotdone = length-1
    
    int max_i;
    
	while (lastnotdone > 0) {
		
		max_i = 0;
		while (array[max_i] != (lastnotdone+1)) {
			max_i++;
		}
		
		if (max_i == lastnotdone) {
			--lastnotdone;
			continue;
		}
		
		int old_arr[lastnotdone+1];
		
		for (int i=0; i<=lastnotdone; i++) {
			old_arr[i] = array[i];
		}
		
		for (int i=0; i<=lastnotdone; i++) {
			
			if (i<=max_i) {
				array[i+(lastnotdone - max_i)] = old_arr[i];
			} else {
				array[lastnotdone-i] = old_arr[i];
			}
		}
		
		if (max_i != 0) {
			turns_oss << (max_i+1) << " " << (lastnotdone+1) << " ";
			turns_count += 2;
		} else {
			turns_oss << (lastnotdone+1) << " ";
			++turns_count;
		}
		
		--lastnotdone;		
	}
	
	cout << turns_count << '\n' << turns_oss.str() << endl;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: RUNTIME ERROR