Submission #1589198
Source Code Expand
#include "bits/stdc++.h" #include <regex> #define _USE_MATH_DEFINES #include <math.h> using namespace std; #ifndef _DEBUG #define main_ main #endif #define FOR(i,s,e) for (int i = int(s); i < int(e); ++i) #define REP(i,e) FOR(i,0,e) #define INF (INT_MAX/2) #define EPS (1.0e-8) #define LINF (LONG_MAX/2) typedef long long ll; typedef unsigned long long ull; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<ll> vl; typedef vector<vl> vvl; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef vector<bool> vb; typedef vector<string> vs; template <typename T> using keyVal = pair<string, T>; template<typename T> bool val_greater(const keyVal<T>& left, const keyVal<T>& right) { return left.second > right.second; } vs split(string str, char sep) { stringstream ss(str); string t; vs v; while (getline(ss, t, sep)) v.push_back(t); return v; } void init_global() {} int N, K; string S, A; vb usedS, usedA; int match(string A, string S) { vb tmpUsedS = usedS; int cnt = 0; FOR(i, 0, N) { if (usedA[i]) continue; FOR(j, 0, N) { if (tmpUsedS[j]) continue; if (A[i] == S[j]) { cnt++; tmpUsedS[j] = true; break; } } } return cnt; } void dfs(int i, string s, int lim, string& ans) { if (i == N) { ans = s; return; } usedS[i] = true; FOR(j, 0, N) { if (usedA[j])continue; usedA[j] = true; if (S[i] == A[j]) { dfs(i + 1, s + A[j], lim, ans); } else { int dif = N - (i+1) - match(A, S); if (dif <= lim - 1) { dfs(i + 1, s + A[j], lim - 1, ans); return; } else { usedA[j] = false; } } } usedS[i] = false; } int main_() { cin.tie(0); ios::sync_with_stdio(false); cin >> N >> K; cin >> S; A = S; sort(A.begin(), A.end()); usedS.resize(N, false); usedA.resize(N, false); string ans; dfs(0, "", K, ans); cout << ans << endl; usedS.clear(); usedA.clear(); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - 辞書式順序ふたたび |
User | apprec |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 2012 Byte |
Status | AC |
Exec Time | 27 ms |
Memory | 256 KB |
Judge Result
Set Name | All | ||
---|---|---|---|
Score / Max Score | 100 / 100 | ||
Status |
|
Set Name | Test Cases |
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All | hand_1_0.txt, hand_1_1.txt, hand_1_2.txt, hand_1_3.txt, hand_1_4.txt, hand_1_5.txt, hand_1_6.txt, hand_1_7.txt, hand_1_8.txt, hand_2_0.txt, hand_2_1.txt, hand_2_10.txt, hand_2_2.txt, hand_2_3.txt, hand_2_4.txt, hand_2_5.txt, hand_2_6.txt, hand_2_7.txt, hand_2_8.txt, hand_2_9.txt, hand_3_2.txt, hand_3_3.txt, hand_3_4.txt, hand_3_5.txt, hand_3_6.txt, hand_4_2.txt, hand_4_3.txt, hand_4_4.txt, hand_4_5.txt, hand_4_6.txt, random_1.txt, random_10.txt, random_11.txt, random_12.txt, random_13.txt, random_14.txt, random_15.txt, random_2.txt, random_3.txt, random_4.txt, random_5.txt, random_6.txt, random_7.txt, random_8.txt, random_9.txt, sample_1.txt, sample_2.txt, sample_3.txt, sample_4.txt, small_1.txt, small_2.txt, small_3.txt, small_4.txt, small_5.txt, small_6.txt, small_7.txt, small_8.txt, small_9.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
hand_1_0.txt | AC | 1 ms | 256 KB |
hand_1_1.txt | AC | 1 ms | 256 KB |
hand_1_2.txt | AC | 1 ms | 256 KB |
hand_1_3.txt | AC | 1 ms | 256 KB |
hand_1_4.txt | AC | 1 ms | 256 KB |
hand_1_5.txt | AC | 1 ms | 256 KB |
hand_1_6.txt | AC | 1 ms | 256 KB |
hand_1_7.txt | AC | 1 ms | 256 KB |
hand_1_8.txt | AC | 1 ms | 256 KB |
hand_2_0.txt | AC | 1 ms | 256 KB |
hand_2_1.txt | AC | 1 ms | 256 KB |
hand_2_10.txt | AC | 1 ms | 256 KB |
hand_2_2.txt | AC | 1 ms | 256 KB |
hand_2_3.txt | AC | 1 ms | 256 KB |
hand_2_4.txt | AC | 1 ms | 256 KB |
hand_2_5.txt | AC | 1 ms | 256 KB |
hand_2_6.txt | AC | 1 ms | 256 KB |
hand_2_7.txt | AC | 1 ms | 256 KB |
hand_2_8.txt | AC | 1 ms | 256 KB |
hand_2_9.txt | AC | 1 ms | 256 KB |
hand_3_2.txt | AC | 1 ms | 256 KB |
hand_3_3.txt | AC | 1 ms | 256 KB |
hand_3_4.txt | AC | 1 ms | 256 KB |
hand_3_5.txt | AC | 1 ms | 256 KB |
hand_3_6.txt | AC | 1 ms | 256 KB |
hand_4_2.txt | AC | 1 ms | 256 KB |
hand_4_3.txt | AC | 1 ms | 256 KB |
hand_4_4.txt | AC | 1 ms | 256 KB |
hand_4_5.txt | AC | 1 ms | 256 KB |
hand_4_6.txt | AC | 1 ms | 256 KB |
random_1.txt | AC | 2 ms | 256 KB |
random_10.txt | AC | 22 ms | 256 KB |
random_11.txt | AC | 14 ms | 256 KB |
random_12.txt | AC | 16 ms | 256 KB |
random_13.txt | AC | 10 ms | 256 KB |
random_14.txt | AC | 3 ms | 256 KB |
random_15.txt | AC | 2 ms | 256 KB |
random_2.txt | AC | 2 ms | 256 KB |
random_3.txt | AC | 2 ms | 256 KB |
random_4.txt | AC | 4 ms | 256 KB |
random_5.txt | AC | 2 ms | 256 KB |
random_6.txt | AC | 6 ms | 256 KB |
random_7.txt | AC | 21 ms | 256 KB |
random_8.txt | AC | 27 ms | 256 KB |
random_9.txt | AC | 26 ms | 256 KB |
sample_1.txt | AC | 1 ms | 256 KB |
sample_2.txt | AC | 1 ms | 256 KB |
sample_3.txt | AC | 1 ms | 256 KB |
sample_4.txt | AC | 1 ms | 256 KB |
small_1.txt | AC | 1 ms | 256 KB |
small_2.txt | AC | 1 ms | 256 KB |
small_3.txt | AC | 1 ms | 256 KB |
small_4.txt | AC | 1 ms | 256 KB |
small_5.txt | AC | 1 ms | 256 KB |
small_6.txt | AC | 1 ms | 256 KB |
small_7.txt | AC | 1 ms | 256 KB |
small_8.txt | AC | 1 ms | 256 KB |
small_9.txt | AC | 1 ms | 256 KB |