Submission #2501071
Source Code Expand
#include <iostream> #include <vector> #include <map> #include <algorithm> #define rep(i, n) for(int i = 0; i<n; i++) using namespace std; int main(void) { string s; int k; cin >> s >> k; k--; vector<string> subs; map<string, bool> memo; rep(start, s.size()) { string si = s.substr(start, 1); if(subs.size()==k+1 and si > subs[k]) continue; rep(li, s.size()-start) { int l = li+1; string si = s.substr(start, l); if(subs.size()==k+1 and si > subs[k]) break; auto it = lower_bound(subs.begin(), subs.end(), si); if (memo.count(si)) continue; // cout << si << endl; subs.insert(it, si); if (subs.size() > k) subs.resize(k+1); memo[si] = true; } } cout << subs[k] << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - K-th Substring |
User | frnfnts |
Language | C++14 (GCC 5.4.1) |
Score | 300 |
Code Size | 888 Byte |
Status | AC |
Exec Time | 23 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 | 23 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 | 5 ms | 256 KB |
2_012.txt | AC | 5 ms | 256 KB |
2_013.txt | AC | 2 ms | 256 KB |
2_014.txt | AC | 2 ms | 256 KB |
2_015.txt | AC | 1 ms | 256 KB |
2_016.txt | AC | 2 ms | 256 KB |
2_017.txt | AC | 2 ms | 256 KB |
2_018.txt | AC | 2 ms | 256 KB |