Submission #559538

#	Time	Username	Problem	Language	Result	Execution time	Memory
559538		kappa	Jetpack (COCI16_jetpack)	C++14	72 / 80	1057 ms	5072 KiB

jetpack

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define st first
#define nd second
#define MOD 1000000007
typedef pair<ll, ll> pii;

const ll maxn = 1e5 + 5;

vector<int> ans;

char d[15][maxn];

int n;

int dfs(int x, int y){
    if(x < 0 || x >= 10 || y < 0 || y >= n){
        return 0;
    }
    if(d[x][y] == 'X'){
        return 0;
    }

    if(y == n-1){
        return 1;
    }
    if(dfs(min(9, x+1), y + 1)){
        return 1;
    }
    if(dfs(max(0, x-1), y + 1)){
        ans.pb(y);
        return 1;
    }
    return 0;
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n;
    for (int j = 0; j < 10; j++)
    {
        for (int i = 0; i < n; i++)
        {
            cin >> d[j][i];
        }
    }

    dfs(9, 0);
    reverse(ans.begin(), ans.end());
    cout << ans.size() << "\n";
    for(auto i : ans){
        cout << i << " 1\n";
    }
}

• Subtask 1: 72 / 80