Submission #2497269

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#include <bits/stdc++.h>
using namespace std;

#define NDEBUG
#ifdef DEBUG
#include "cout11.h"
#undef NDEBUG
#endif
#include <cassert>

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> ii;
typedef pair<ll,ll> llll;
typedef pair<double,double> dd;

typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<ll> vll;

#define sz(a)  int((a).size())
#define pb  push_back
#define FOR(var,from,to) for(int var=(from);var<=(to);++var)
#define rep(var,n)  for(int var=0;var<(n);++var)
#define rep1(var,n)  for(int var=1;var<=(n);++var)
#define repC2(vari,varj,n)  for(int vari=0;vari<(n)-1;++vari)for(int varj=vari+1;varj<(n);++varj)
#define ALL(c)  (c).begin(),(c).end()
#define RALL(c)  (c).rbegin(),(c).rend()
#define tr(i,c)  for(auto i=(c).begin(); i!=(c).end(); ++i)
#define found(s,e)  ((s).find(e)!=(s).end())
#define mset(arr,val)  memset(arr,val,sizeof(arr))
#define mid(x,y) ((x)+((y)-(x))/2)
#define IN(x,a,b) ((a)<=(x)&&(x)<=(b))

string solve(string& s, int k) {
    int L = s.size();

    set<string> sub;
    for (int i=0; i<L; ++i){
        for (int l=1; l<=L-i; ++l) {
            sub.insert(s.substr(i, l));
        }
    }

    int i = 0;
    for (string si: sub){
        if (++i == k) return si;
    }

}

int main() {
    string s; cin >> s;
    int k; cin >> k;
    cout << solve(s,k) << endl;
    return 0;
}

Submission Info

Submission Time
Task C - K-th Substring
User naoya_t
Language C++14 (GCC 5.4.1)
Score 200
Code Size 1485 Byte
Status

Test Cases

Set Name Score / Max Score Test Cases
Sample 0 / 0 0_000.txt, 0_001.txt, 0_002.txt
Subtask 200 / 200 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 / 100 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 2 ms 256 KB
0_001.txt 2 ms 256 KB
0_002.txt 1 ms 256 KB
1_003.txt 2 ms 256 KB
1_004.txt 2 ms 256 KB
1_005.txt 2 ms 256 KB
1_006.txt 2 ms 256 KB
1_007.txt 2 ms 256 KB
1_008.txt 2 ms 384 KB
1_009.txt 2 ms 256 KB
1_010.txt 2 ms 256 KB
2_011.txt
2_012.txt
2_013.txt
2_014.txt
2_015.txt
2_016.txt
2_017.txt
2_018.txt