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Submission #959286

# Submission time Handle Problem Language Result Execution time Memory
959286 2024-04-07T20:33:11 Z hyakup Roller Coaster Railroad (IOI16_railroad) C++17
0 / 100
 152 ms 17584 KB 
#include <bits/stdc++.h>
#include "railroad.h"
using namespace std;
#define ll long long

const ll inf = 1e9 + 10;

ll plan_roller_coaster( vector<int> ini, vector<int> fim ){
    int n = ini.size();
    set<pair<int, int>> s;
    vector<int> marc(n);
    for( int i = 0; i < n; i++ ) s.insert({ ini[i], i });
    s.insert({ inf, n });
    int cur = s.begin()->second; s.erase(s.begin());
    while( cur != n ){
      auto [pos, viz] = *s.lower_bound({fim[cur], -1});
      marc[cur] = true; s.erase({ pos, viz });
      cur = viz;
    }
    for( int i = 0; i < n; i++ ) if( marc[i] == 0 ) return 1;
    return 0;
}

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n = 2
2 Correct 0 ms 348 KB n = 2
3 Correct 0 ms 348 KB n = 2
4 Correct 0 ms 348 KB n = 2
5 Correct 0 ms 348 KB n = 2
6 Incorrect 0 ms 348 KB answer is not correct: 1 instead of 523688153
7 Halted 0 ms 0 KB -

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n = 2
2 Correct 0 ms 348 KB n = 2
3 Correct 0 ms 348 KB n = 2
4 Correct 0 ms 348 KB n = 2
5 Correct 0 ms 348 KB n = 2
6 Incorrect 0 ms 348 KB answer is not correct: 1 instead of 523688153
7 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 108 ms 13652 KB n = 199999
2 Correct 138 ms 17584 KB n = 199991
3 Correct 95 ms 17488 KB n = 199993
4 Correct 105 ms 13008 KB n = 152076
5 Correct 70 ms 8272 KB n = 93249
6 Correct 152 ms 16468 KB n = 199910
7 Correct 109 ms 16864 KB n = 199999
8 Correct 147 ms 16688 KB n = 199997
9 Correct 125 ms 14936 KB n = 171294
10 Incorrect 78 ms 12372 KB answer is not correct: 1 instead of 0
11 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n = 2
2 Correct 0 ms 348 KB n = 2
3 Correct 0 ms 348 KB n = 2
4 Correct 0 ms 348 KB n = 2
5 Correct 0 ms 348 KB n = 2
6 Incorrect 0 ms 348 KB answer is not correct: 1 instead of 523688153
7 Halted 0 ms 0 KB -