oj.uz

Submission #1070036

# Submission time Handle Problem Language Result Execution time Memory
1070036 2024-08-22T11:11:20 Z BigBadBully Sprinklers (CEOI24_sprinklers) C++17
6 / 100
 187 ms 5356 KB 
// Online C++ compiler to run C++ program online
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ff first
#define ss second
#define pii pair<int,int>
pii bad = {-1,-1};
const int jonkler = 1e15;
signed main() {
    int n,m;
    cin >> n >> m;
    vector<int> a(n),b(m);
    for (int i = 0; i < n; i++)
        cin >> a[i];

    for (int i = 0; i < m; i++)
        cin >> b[i];

    auto solve = [&](int k)
    {
        queue<pii> all;
        int i = 0,  j = 0;
        while(i < n && j < m)
        {
            if (a[i] < b[j])
                all.push({a[i++],1});
            else
                all.push({b[j++],0});
        }
       while (i<n) all.push({a[i++],1});
        while (j<m) all.push({b[j++],0});
        int prev = jonkler;
        int range = -1;
       
        while (all.size())
        {
            auto cur = all.front();
            if (cur.ss)
            {
                if (prev == jonkler)
                range = cur.ff+k;
                else
                {
                    if (prev < cur.ff - k)
                    {
                        return 0;
                    }
                    else
                        prev = jonkler;
                }
            }
            else
            {
                if (cur.ff>range)
                prev = min(prev,cur.ff);
            }
            all.pop();
        }
        if (prev > range && prev != jonkler)
            return 0;
        return 1;
    };
    int l = 0, r = 1e10;
    while(r-l>1)
    {
        int mid = l+r>>1;
        if (solve(mid))
            r = mid;
        else
            l = mid;
    }
    string ans;
    auto fillstr = [&](int k)
    {
        queue<pii> all;
        int i = 0,  j = 0;
        while(i < n && j < m)
        {
            if (a[i] < b[j])
                all.push({a[i++],1});
            else
                all.push({b[j++],0});
        }
       while (i<n) all.push({a[i++],1});
        while (j<m) all.push({b[j++],0});
        int prev = jonkler;
        int range = -1;
       
        while (all.size())
        {
            auto cur = all.front();
            if (cur.ss)
            {
                if (prev == jonkler)
                {
                    range = cur.ff+k;
                    ans.push_back('R');
                }
                else
                {
                    
                    prev = jonkler;
                    ans.push_back('L');
                }
            }
            else
            {
                if (cur.ff>range)
                prev = min(prev,cur.ff);
            }
            all.pop();
        }
        
    };
    if (r == 1e10)
        cout << "-1\n";
    else
    {
    if (solve(l))
    {
        cout << l << '\n';
        fillstr(l);
        cout << ans << '\n';
      
    }
    else
    {
        cout << r << '\n';
        fillstr(r);
         cout << ans << '\n';
    }
    }
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:67:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   67 |         int mid = l+r>>1;
      |                   ~^~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Correct 0 ms 348 KB Correct

Subtask #1
0.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Correct 96 ms 2484 KB Correct
3 Incorrect 1 ms 348 KB User solution is worse than jury's solution
4 Halted 0 ms 0 KB -

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Correct 74 ms 2940 KB Correct
3 Correct 14 ms 788 KB Correct
4 Correct 173 ms 5352 KB Correct
5 Correct 160 ms 5344 KB Correct
6 Correct 0 ms 348 KB Correct
7 Correct 0 ms 348 KB Correct
8 Correct 155 ms 5348 KB Correct
9 Correct 156 ms 5308 KB Correct
10 Correct 187 ms 5356 KB Correct
11 Correct 83 ms 2920 KB Correct
12 Correct 155 ms 3564 KB Correct
13 Correct 124 ms 4516 KB Correct
14 Correct 125 ms 4496 KB Correct
15 Correct 124 ms 4484 KB Correct
16 Correct 120 ms 4520 KB Correct

Subtask #3
0.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Correct 0 ms 348 KB Correct
3 Incorrect 1 ms 348 KB User solution is worse than jury's solution
4 Halted 0 ms 0 KB -

Subtask #4
0.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Incorrect 81 ms 3180 KB User solution is worse than jury's solution
3 Halted 0 ms 0 KB -

Subtask #5
0.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Correct 0 ms 348 KB Correct
3 Correct 96 ms 2484 KB Correct
4 Incorrect 1 ms 348 KB User solution is worse than jury's solution
5 Halted 0 ms 0 KB -