Submission #952180

#	Time	Username	Problem	Language	Result	Execution time	Memory
952180		penguinma	Jetpack (COCI16_jetpack)	C++17	80 / 80	50 ms	6356 KiB

jetpack

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
ll n;
vector<vector<char>>a;
vector<ll>v;
ll dfs(ll x,ll y)
{
	if(a[x][y]=='X')
		return 0;
	if(y==n-1)
		return 1;
	a[x][y]='X';
	if(dfs(min((ll)9,x+1),y+1)==1)
		return 1;
	 if(dfs(max((ll)0,x-1),y+1)==1)
	{
		v.push_back(y);
		return 1;
	}
	return 0;
}
int main()
{
	cin>>n;
	a.assign(10,vector<char>(n));
	for(ll i=0;i<10;i++)
	{
		for(ll j=0;j<n;j++)
			cin>>a[i][j];
	}
		dfs(9,0);
	reverse(v.begin(),v.end());
	cout<<v.size()<<"\n";
	for(auto i:v)
		cout<<i<<" "<<1<<"\n";
}

• Subtask 1: 80 / 80