Submission #3458719
Source Code Expand
#include <iostream> #include <vector> #include <algorithm> #include <numeric> #include <cstdint> #include <map> #include <set> #include <cmath> #include <cstdlib> #include <sstream> #include <boost/range/irange.hpp> using boost::irange; #include <boost/utility/string_ref.hpp> using boost::string_ref; using namespace std; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); size_t k; string s; cin >> s >> k; set<string_ref> substrs; for(size_t i = 0; i < s.size(); ++i) { for(size_t l = 1; l <= s.size() - i; ++l) { const auto ss = string_ref(&s[i], l); //cout << '(' << i << ',' << l << ')' << ' ' << ss << '\n'; if(substrs.size() < k) { substrs.insert(ss); } else if(ss < *--end(substrs)) { substrs.insert(ss); if(substrs.size() > k) { substrs.erase(--end(substrs)); } } else { break; } //copy(begin(substrs), end(substrs), ostream_iterator<string>(std::cout, " ")); cout << endl; } } cout << *next(begin(substrs), k-1) << '\n'; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - K-th Substring |
User | tetsurom |
Language | C++14 (GCC 5.4.1) |
Score | 300 |
Code Size | 1380 Byte |
Status | AC |
Exec Time | 2 ms |
Memory | 256 KB |
Judge Result
Set Name | Sample | Subtask | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | 100 / 100 | ||||||
Status |
|
|
|
Set Name | Test Cases |
---|---|
Sample | 0_000.txt, 0_001.txt, 0_002.txt |
Subtask | 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 1_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 2_011.txt, 2_012.txt, 2_013.txt, 2_014.txt, 2_015.txt, 2_016.txt, 2_017.txt, 2_018.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 1 ms | 256 KB |
0_001.txt | AC | 1 ms | 256 KB |
0_002.txt | AC | 1 ms | 256 KB |
1_003.txt | AC | 1 ms | 256 KB |
1_004.txt | AC | 1 ms | 256 KB |
1_005.txt | AC | 1 ms | 256 KB |
1_006.txt | AC | 1 ms | 256 KB |
1_007.txt | AC | 1 ms | 256 KB |
1_008.txt | AC | 1 ms | 256 KB |
1_009.txt | AC | 1 ms | 256 KB |
1_010.txt | AC | 1 ms | 256 KB |
2_011.txt | AC | 2 ms | 256 KB |
2_012.txt | AC | 2 ms | 256 KB |
2_013.txt | AC | 1 ms | 256 KB |
2_014.txt | AC | 1 ms | 256 KB |
2_015.txt | AC | 1 ms | 256 KB |
2_016.txt | AC | 1 ms | 256 KB |
2_017.txt | AC | 1 ms | 256 KB |
2_018.txt | AC | 1 ms | 256 KB |