Submission #2749712


Source Code Expand

#include<bits/stdc++.h>
using namespace std;
string s;int k;
set<string>tt;
int main(){
	std::ios::sync_with_stdio(false);
	cin>>s>>k;
	int len=s.size();
	for(int i=0;i<len;i++){
		string ss="";
		for(int j=i;j<len;j++){
			ss+=s[j];
			tt.insert(ss);
			auto it=tt.end();it--;
			if(tt.size()>k) tt.erase(it);
		}
	}
	auto it=tt.begin();int num=1;
	while(num<k) it++,num++;
	cout<<*it<<endl;
	return 0;
} 

Submission Info

Submission Time
Task C - K-th Substring
User vainglory
Language C++14 (GCC 5.4.1)
Score 300
Code Size 427 Byte
Status AC
Exec Time 1078 ms
Memory 256 KB

Judge Result

Set Name Sample Subtask All
Score / Max Score 0 / 0 200 / 200 100 / 100
Status
AC × 3
AC × 11
AC × 19
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 1055 ms 256 KB
2_012.txt AC 1055 ms 256 KB
2_013.txt AC 874 ms 256 KB
2_014.txt AC 1074 ms 256 KB
2_015.txt AC 584 ms 256 KB
2_016.txt AC 1078 ms 256 KB
2_017.txt AC 1072 ms 256 KB
2_018.txt AC 1072 ms 256 KB