oj.uz

Submission #992775

# Submission time Handle Problem Language Result Execution time Memory
992775 2024-06-05T07:09:57 Z Uniq0rn Jetpack (COCI16_jetpack) C++14
8 / 80
 18 ms 7132 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long int
#define pi pair<int,int>
#define sz(x) (int)x.size()

const int N = 1e5;
int n,flag;
char grid[10][N+10];
bool vis[10][N+10];
vector<int> ans;
void dfs(int i,int j){
    if(flag || vis[i][j] || grid[i][j] == 'X') return ;
    vis[i][j] = 1;
    flag = (j == n-1);
    if(i == 9){
        dfs(i,j+1);
        ans.push_back(j);
        dfs(i-1,j+1);
        ans.pop_back();
    }
    else if(i == 0){
        dfs(i,j+1);
        ans.push_back(j);
        dfs(i+1,j+1);
        ans.pop_back();
    }
    else{
        //cout << i << ' ' << j << '\n';
        if(sz(ans)%2 == 0) ans.push_back(j);
        dfs(i-1,j+1);
        if(sz(ans)%2 == 0) ans.pop_back();
        if(sz(ans)%2 == 1) ans.push_back(j);
        dfs(i+1,j+1);
        if(sz(ans)%2 == 1) ans.pop_back();
    }
}
int main()
{
    cin.tie(0)->sync_with_stdio(0);
    cin >> n;
    for(int i=0;i<10;i++){
        for(int j=0;j<n;j++){
            cin >> grid[i][j];
        }
    }
    dfs(9,0);
    if(sz(ans)%2){
        if(ans.back() == n-1) ans.pop_back();
        else ans.push_back(n-1);
    }
    cout << sz(ans)/2 << '\n';
    for(int i=0;i<sz(ans)-1;i+=2){
        cout << ans[i] << ' ' << ans[i+1]-ans[i] << '\n';
    }
    return 0;
}

Subtask #1
8.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Incorrect 0 ms 348 KB Integer -2 violates the range [1, 38]
3 Incorrect 0 ms 468 KB Integer 0 violates the range [1, 95]
4 Incorrect 1 ms 348 KB Integer 0 violates the range [1, 853]
5 Incorrect 1 ms 604 KB Integer -2 violates the range [1, 4339]
6 Incorrect 2 ms 736 KB Integer -1 violates the range [1, 6271]
7 Incorrect 4 ms 1884 KB Integer -2 violates the range [1, 19293]
8 Incorrect 11 ms 3692 KB Integer 0 violates the range [1, 47490]
9 Incorrect 13 ms 5340 KB Integer 0 violates the range [1, 72179]
10 Incorrect 18 ms 7132 KB Integer -6 violates the range [1, 100000]