oj.uz

Submission #654859

# Submission time Handle Problem Language Result Execution time Memory
654859 2022-11-01T19:20:09 Z benjaminkleyn Sails (IOI07_sails) C++17
30 / 100
 1000 ms 12808 KB 
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int max_n = 100'000;
int n;
pair<int,int> mast[max_n];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> mast[i].first >> mast[i].second;

    sort(mast, mast + n);

    set<pair<int,int>> H;
    unordered_map<int,int> cnt;
    for (int h = 1; h <= mast[n - 1].first; h++)
    {
        cnt[h] = 0;
        H.insert({cnt[h], h});
    }

    for (int i = 0; i < n; i++)
    {
        vector<pair<int,int>> best;
        for (auto [count, height] : H)
            if (best.size() >= mast[i].second)
                break;
            else if (height <= mast[i].first)
                best.push_back({count, height});

        for (auto [count, height] : best)
        {
            H.erase({count, height});
            H.insert({count + 1, height});
            cnt[height] = count + 1;
        }
    }

    ll sum = 0;
    for (auto [count, height] : H)
        sum += count * (count - 1) / 2;

    cout << sum << '\n';

    return 0;
}

Compilation message

sails.cpp: In function 'int main()':
sails.cpp:35:29: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |             if (best.size() >= mast[i].second)
      |                 ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 212 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 0 ms 328 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 332 KB Output is correct
2 Correct 24 ms 340 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 747 ms 768 KB Output is correct
2 Execution timed out 1025 ms 9804 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1045 ms 3464 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1084 ms 3712 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1079 ms 5888 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1025 ms 12808 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1084 ms 11384 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1080 ms 11560 KB Time limit exceeded
2 Halted 0 ms 0 KB -