Submission #1079263

#	Time	Username	Problem	Language	Result	Execution time	Memory
1079263		vnm06	JOIRIS (JOI16_joiris)	C++14	30 / 100	1 ms	600 KiB

joiris

#include<bits/stdc++.h>
#define endl '\n'

using namespace std;

int n, k, h[64];
vector<pair<int, int> > moves;

void print_ans(bool t)
{
    if(!t)
    {
        cout<<-1<<endl;
        return;
    }
    cout<<moves.size()<<endl;
    for(int i=0; i<moves.size(); i++) cout<<moves[i].first<<" "<<moves[i].second+1<<endl;
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n>>k;
    for(int i=0; i<n; i++) cin>>h[i];
    for(int i=n-2; i>=0; i--)
    {
        while(h[i]<h[i+1])
        {
            moves.push_back({1, i});
            h[i]+=2;
        }
    }
    int id=n-1, br=0;
    for(int i=h[n-1]+1; i<=h[0]; i++)
    {
        while(id && h[id-1]<i) id--;
        if((n-1-id)%2==0) br++;
        for(int j=id; j<=n-2; j+=2) moves.push_back({2, j}); 
    }
    while(br>1)
    {
        moves.push_back({1, n-1});
        br-=2;
    }
    if(!br) print_ans(1);
    else if(br && n%2==0) print_ans(0);
    else
    {
        moves.push_back({1, n-1});
        for(int i=n-3; i>=0; i-=2) moves.push_back({2, i});
        print_ans(1);
    }
    return 0;
}

Compilation message (stderr)

joiris.cpp: In function 'void print_ans(bool)':
joiris.cpp:17:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i=0; i<moves.size(); i++) cout<<moves[i].first<<" "<<moves[i].second+1<<endl;
      |                  ~^~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 0 / 15
• Subtask 4: 0 / 55