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Submission #979062

# Submission time Handle Problem Language Result Execution time Memory
979062 2024-05-10T07:23:15 Z sunnat Permutation (APIO22_perm) C++17
91.3333 / 100
 745 ms 672 KB 
#include <iostream>
#include <vector>
using namespace std;

vector<int> construct_permutation(long long k){
    --k;
    int val = 0;
    vector<int> a;
    vector<long long> lstdp;
    long long sum = 0;
    auto calc = [&](){
        sum = 0;
        lstdp.resize(a.size());
        for(int i = 0; i < lstdp.size(); ++ i){
            lstdp[i] = 1;
            for(int j = 0; j < i; ++ j)
                if(a[i] > a[j]) lstdp[i] += lstdp[j];
            sum += lstdp[i];
        }
        return sum;
    };
    while(sum != k){
        a.push_back(a.size());
        int i = a.size() - 1;
        while(calc() > k){
            swap(a[i], a[i-1]);
            --i;
        }
    }
    return a;
}

Compilation message

perm.cpp: In lambda function:
perm.cpp:14:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |         for(int i = 0; i < lstdp.size(); ++ i){
      |                        ~~^~~~~~~~~~~~~~
perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:7:9: warning: unused variable 'val' [-Wunused-variable]
    7 |     int val = 0;
      |         ^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct

Subtask #2
81.333333333 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 4 ms 344 KB Output is correct
4 Correct 22 ms 444 KB Output is correct
5 Partially correct 305 ms 416 KB Partially correct
6 Correct 92 ms 600 KB Output is correct
7 Correct 208 ms 440 KB Output is correct
8 Partially correct 437 ms 468 KB Partially correct
9 Correct 40 ms 460 KB Output is correct
10 Partially correct 745 ms 672 KB Partially correct
11 Partially correct 418 ms 428 KB Partially correct
12 Partially correct 331 ms 464 KB Partially correct
13 Partially correct 612 ms 468 KB Partially correct