Submission #1984451
Source Code Expand
#include <iostream> #include <climits> #include <iostream> #include <string> #include <vector> #include <queue> #include <stack> #include <map> #include <algorithm> #include <numeric> #include <functional> #include <set> #include <sstream> #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <cctype> #include <climits> #include <fstream> #include <bitset> #include <time.h> #include <random> #include <assert.h> #include <signal.h> #include <stdlib.h> #include <stdio.h> #include <signal.h> #include <stdexcept> #include <iomanip> #include <gmpxx.h> #define LL long long #define VI vector<int> #define VL vector<long long> #define FOR(i,a,b) for(int i= (a); i<((int)b); ++i) #define RFOR(i,a) for(int i=(a); i >= 0; --i) #define FOE(i,a) for(auto i : a) #define ALL(c) (c).begin(), (c).end() #define RALL(c) (c).rbegin(), (c).rend() #define DUMP(x) cerr << #x << " = " << (x) << endl; #define SUM(x) std::accumulate(ALL(x), 0LL) #define MIN(v) *std::min_element(v.begin(), v.end()) #define MAX(v) *std::max_element(v.begin(), v.end()) #define EXIST(v,x) (std::find(v.begin(), v.end(), x) != v.end()) #define BIT(n) (1LL<<(n)) #define UNIQUE(v) v.erase(unique(v.begin(), v.end()), v.end()); #define EPS 1e-14 using namespace std; int main() { string A; cin >> A; auto n = A.size(); // iの後ろではじめでてくる文字cのindex vector<vector<int>> next(n + 1, vector<int>(26, n)); for(int i = n - 1; i >= 0; --i) { int c = A[i] - 'a'; next[i] = next[i + 1]; next[i][c] = i; } vector<int> dp(n + 2, 0); dp[n] = 1; for(int i = n - 1; i >= 0; --i) { int l = INT_MAX; FOR(j, 0, 26) { l = min(l, dp[next[i][j] + 1] + 1); } dp[i] = l; } string ans; int p = 0; for (int i = dp[0] - 1; i >= 0; --i) { FOR(j, 0, 26) { if (dp[next[p][j] + 1] == i) { ans += char('a' + j); p = next[p][j] + 1; break; } } } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | E - Don't Be a Subsequence |
User | MitI_7 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 2190 Byte |
Status | CE |
Compile Error
./Main.cpp:31:19: fatal error: gmpxx.h: No such file or directory #include <gmpxx.h> ^ compilation terminated.