oj.uz

Submission #596641

# Submission time Handle Problem Language Result Execution time Memory
596641 2022-07-14T23:14:51 Z definitelynotmee Floppy (RMI20_floppy) C++17
28 / 100
 1000 ms 8024 KB 
#include <stdlib.h>
#include <string.h>

#include "floppy.h"
#include<bits/stdc++.h>
#define ff first
#define ss second
#define all(x) x.begin(), x.end()
using namespace std;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
template<typename T>
using matrix = vector<vector<T>>;

void read_array(int subtask_id, const std::vector<int> &v) {
    int n = v.size();

    vector<int> jmp(n,-1);
    string bits;

    for(int i = 1; i < n; i++){
        jmp[i] = i-1;
        while(jmp[i]!=-1 && v[jmp[i]] < v[i])
            jmp[i] = jmp[jmp[i]], bits.push_back('0');
        bits.push_back('1');
    }

    save_to_floppy(bits);
}

std::vector<int> solve_queries(int subtask_id, int n,
        const std::string &bits,
        const std::vector<int> &a, const std::vector<int> &b) {
    vector<int> answers(b.size());
    
    vector<int> jmp(n,-1);
    int ptr = 0;

    for(int i = 1; i < n; i++){
        jmp[i] = i-1;
        while(true){
            if(bits[ptr++] == '0'){
                jmp[i] = jmp[jmp[i]];
            } else break;
        }
    }

    for(int i = 0; i < a.size(); i++){
        int id = b[i];
        while(jmp[id] >= a[i])
            id = jmp[id];
        answers[i] = id;
    }

    return answers;
}

Compilation message

floppy.cpp: In function 'std::vector<int> solve_queries(int, int, const string&, const std::vector<int>&, const std::vector<int>&)':
floppy.cpp:49:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |     for(int i = 0; i < a.size(); i++){
      |                    ~~^~~~~~~~~~
stub.cpp: In function 'void run2()':
stub.cpp:101:30: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  101 |     if (query_answers.size() != M) {
      |         ~~~~~~~~~~~~~~~~~~~~~^~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 656 KB Output is correct
2 Correct 3 ms 664 KB Output is correct
3 Correct 2 ms 524 KB Output is correct
4 Correct 2 ms 656 KB Output is correct
5 Correct 1 ms 664 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 2336 KB Output is correct
2 Correct 22 ms 2320 KB Output is correct
3 Correct 106 ms 2328 KB Output is correct
4 Correct 30 ms 2416 KB Output is correct
5 Correct 20 ms 2316 KB Output is correct

Subtask #3
0.0 / 72.0

# Verdict Execution time Memory Grader output
1 Correct 75 ms 8024 KB Output is correct
2 Correct 74 ms 7988 KB Output is correct
3 Execution timed out 1102 ms 7768 KB Time limit exceeded
4 Halted 0 ms 0 KB -