oj.uz

Submission #1070055

# Submission time Handle Problem Language Result Execution time Memory
1070055 2024-08-22T11:20:19 Z vjudge1 Sprinklers (CEOI24_sprinklers) C++17
9 / 100
 207 ms 12372 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 0 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 73 ms 5956 KB Correct
3 Correct 0 ms 348 KB Correct
4 Correct 85 ms 8432 KB Correct
5 Correct 92 ms 8328 KB Correct
6 Correct 0 ms 344 KB Correct
7 Correct 0 ms 348 KB Correct
8 Correct 16 ms 1988 KB Correct
9 Correct 0 ms 348 KB Correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Correct
2 Correct 83 ms 6492 KB Correct
3 Correct 11 ms 1164 KB Correct
4 Correct 192 ms 12368 KB Correct
5 Correct 207 ms 12372 KB Correct
6 Correct 1 ms 348 KB Correct
7 Correct 0 ms 348 KB Correct
8 Correct 186 ms 6752 KB Correct
9 Correct 171 ms 7204 KB Correct
10 Correct 192 ms 10108 KB Correct
11 Correct 93 ms 4496 KB Correct
12 Correct 131 ms 9076 KB Correct
13 Correct 147 ms 8544 KB Correct
14 Correct 158 ms 9680 KB Correct
15 Correct 156 ms 9716 KB Correct
16 Correct 134 ms 6996 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 Correct 1 ms 348 KB Correct
4 Correct 0 ms 348 KB Correct
5 Incorrect 1 ms 344 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 0 ms 348 KB Correct
2 Incorrect 99 ms 6484 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 73 ms 5956 KB Correct
4 Correct 0 ms 348 KB Correct
5 Correct 85 ms 8432 KB Correct
6 Correct 92 ms 8328 KB Correct
7 Correct 0 ms 344 KB Correct
8 Correct 0 ms 348 KB Correct
9 Correct 16 ms 1988 KB Correct
10 Correct 0 ms 348 KB Correct
11 Correct 83 ms 6492 KB Correct
12 Correct 11 ms 1164 KB Correct
13 Correct 192 ms 12368 KB Correct
14 Correct 207 ms 12372 KB Correct
15 Correct 1 ms 348 KB Correct
16 Correct 0 ms 348 KB Correct
17 Correct 186 ms 6752 KB Correct
18 Correct 171 ms 7204 KB Correct
19 Correct 192 ms 10108 KB Correct
20 Correct 93 ms 4496 KB Correct
21 Correct 131 ms 9076 KB Correct
22 Correct 147 ms 8544 KB Correct
23 Correct 158 ms 9680 KB Correct
24 Correct 156 ms 9716 KB Correct
25 Correct 134 ms 6996 KB Correct
26 Correct 1 ms 348 KB Correct
27 Correct 0 ms 348 KB Correct
28 Incorrect 1 ms 344 KB User solution is worse than jury's solution
29 Halted 0 ms 0 KB -