oj.uz

Submission #1070057

# Submission time Handle Problem Language Result Execution time Memory
1070057 2024-08-22T11:20:41 Z BigBadBully Sprinklers (CEOI24_sprinklers) C++17
9 / 100
 202 ms 12400 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];
    set<int> as,bs;
    for (int i = 0; i < n; i++)
    {
        as.insert(a[i]);
    }
    for (int i = 0; i < m; i++)
        if (as.find(b[i]) == as.end())
            bs.insert(b[i]);
    vector<int> neu;
    for (int i : bs)
        neu.push_back(i);
    b = neu;
    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:80:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   80 |         int mid = l+r>>1;
      |                   ~^~

Subtask #0
0.0 / 0.0

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

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Correct 80 ms 6012 KB Correct
3 Correct 0 ms 348 KB Correct
4 Correct 100 ms 8392 KB Correct
5 Correct 128 ms 8316 KB Correct
6 Correct 0 ms 344 KB Correct
7 Correct 1 ms 348 KB Correct
8 Correct 17 ms 1992 KB Correct
9 Correct 0 ms 348 KB Correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Correct
2 Correct 89 ms 6480 KB Correct
3 Correct 12 ms 1160 KB Correct
4 Correct 197 ms 12400 KB Correct
5 Correct 202 ms 12348 KB Correct
6 Correct 0 ms 348 KB Correct
7 Correct 0 ms 348 KB Correct
8 Correct 158 ms 6720 KB Correct
9 Correct 152 ms 7240 KB Correct
10 Correct 187 ms 10108 KB Correct
11 Correct 95 ms 4540 KB Correct
12 Correct 115 ms 9124 KB Correct
13 Correct 147 ms 8600 KB Correct
14 Correct 151 ms 9656 KB Correct
15 Correct 153 ms 9764 KB Correct
16 Correct 155 ms 7076 KB Correct

Subtask #3
0.0 / 17.0

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

Subtask #4
0.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Correct
2 Incorrect 107 ms 6736 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 1 ms 348 KB Correct
2 Correct 0 ms 348 KB Correct
3 Correct 80 ms 6012 KB Correct
4 Correct 0 ms 348 KB Correct
5 Correct 100 ms 8392 KB Correct
6 Correct 128 ms 8316 KB Correct
7 Correct 0 ms 344 KB Correct
8 Correct 1 ms 348 KB Correct
9 Correct 17 ms 1992 KB Correct
10 Correct 0 ms 348 KB Correct
11 Correct 89 ms 6480 KB Correct
12 Correct 12 ms 1160 KB Correct
13 Correct 197 ms 12400 KB Correct
14 Correct 202 ms 12348 KB Correct
15 Correct 0 ms 348 KB Correct
16 Correct 0 ms 348 KB Correct
17 Correct 158 ms 6720 KB Correct
18 Correct 152 ms 7240 KB Correct
19 Correct 187 ms 10108 KB Correct
20 Correct 95 ms 4540 KB Correct
21 Correct 115 ms 9124 KB Correct
22 Correct 147 ms 8600 KB Correct
23 Correct 151 ms 9656 KB Correct
24 Correct 153 ms 9764 KB Correct
25 Correct 155 ms 7076 KB Correct
26 Correct 1 ms 348 KB Correct
27 Correct 1 ms 348 KB Correct
28 Incorrect 1 ms 348 KB User solution is worse than jury's solution
29 Halted 0 ms 0 KB -