結果
| 問題 | No.422 文字列変更 (Hard) |
| ユーザー |
 koyumeishi
|
| 提出日時 | 2016-09-10 01:08:22 |
| 言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
| 結果 |
AC
|
| 実行時間 | 635 ms / 3,000 ms |
| コード長 | 9,570 bytes |
| コンパイル時間 | 1,813 ms |
| コンパイル使用メモリ | 125,128 KB |
| 実行使用メモリ | 363,904 KB |
| 最終ジャッジ日時 | 2024-11-17 06:46:46 |
| 合計ジャッジ時間 | 8,725 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge2 |
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テストケース
テストケース表示| 入力 | 結果 | 実行時間 実行使用メモリ |
|---|---|---|
| testcase_00 | AC | 2 ms
5,248 KB |
| testcase_01 | AC | 429 ms
249,344 KB |
| testcase_02 | AC | 487 ms
276,736 KB |
| testcase_03 | AC | 394 ms
228,096 KB |
| testcase_04 | AC | 430 ms
249,088 KB |
| testcase_05 | AC | 506 ms
289,664 KB |
| testcase_06 | AC | 635 ms
363,904 KB |
| testcase_07 | AC | 3 ms
5,248 KB |
| testcase_08 | AC | 5 ms
5,248 KB |
| testcase_09 | AC | 564 ms
331,776 KB |
| testcase_10 | AC | 608 ms
352,896 KB |
| testcase_11 | AC | 446 ms
253,952 KB |
| testcase_12 | AC | 399 ms
224,384 KB |
| testcase_13 | AC | 403 ms
235,264 KB |
| testcase_14 | AC | 412 ms
241,280 KB |
| testcase_15 | AC | 435 ms
243,968 KB |
| testcase_16 | AC | 437 ms
253,440 KB |
ソースコード
/*
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############## # ####### ########################
######################## ########################
######################## ########################
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# # # # # # #### #### #### #### ####
# # # # # ## # # # # # # #____# ##
# #/ # # ## # # # # # # # #^^^^ #
## ###/# # # # #### #### ###/# #### #
#
##
*/
#include <iostream>
#include <vector>
#include <cstdio>
#include <sstream>
#include <map>
#include <string>
#include <algorithm>
#include <queue>
#include <cmath>
#include <functional>
#include <set>
#include <ctime>
#include <random>
#include <chrono>
#include <cassert>
using namespace std;
namespace {
using Integer = long long; //__int128;
template<class T> istream& operator >> (istream& is, vector<T>& vec){for(T& val: vec) is >> val; return is;}
template<class T> istream& operator , (istream& is, T& val){ return is >> val;}
template<class T> ostream& operator << (ostream& os, const vector<T>& vec){for(int i=0; i<vec.size(); i++) os << vec[i] << (i==vec.size()-1?"":" "); return os;}
template<class T> ostream& operator , (ostream& os, const T& val){ return os << " " << val;}
template<class H> void print(const H& head){ cout << head; }
template<class H, class ... T> void print(const H& head, const T& ... tail){ cout << head << " "; print(tail...); }
template<class ... T> void println(const T& ... values){ print(values...); cout << endl; }
template<class H> void eprint(const H& head){ cerr << head; }
template<class H, class ... T> void eprint(const H& head, const T& ... tail){ cerr << head << " "; eprint(tail...); }
template<class ... T> void eprintln(const T& ... values){ eprint(values...); cerr << endl; }
class range{
long long start_, end_, step_;
public:
struct range_iterator{
long long val, step_;
range_iterator(long long v, long long step) : val(v), step_(step) {}
long long operator * (){return val;}
void operator ++ (){val += step_;}
bool operator != (range_iterator& x){return step_ > 0 ? val < x.val : val > x.val;}
};
range(long long len) : start_(0), end_(len), step_(1) {}
range(long long start, long long end) : start_(start), end_(end), step_(1) {}
range(long long start, long long end, long long step) : start_(start), end_(end), step_(step) {}
range_iterator begin(){ return range_iterator(start_, step_); }
range_iterator end(){ return range_iterator( end_, step_); }
};
string operator "" _s (const char* str, size_t size){ return move(string(str)); }
constexpr Integer my_pow(Integer x, Integer k, Integer z=1){return k==0 ? z : k==1 ? z*x : (k&1) ? my_pow(x*x,k>>1,z*x) : my_pow(x*x,k>>1,z);}
constexpr Integer my_pow_mod(Integer x, Integer k, Integer M, Integer z=1){return k==0 ? z%M : k==1 ? z*x%M : (k&1) ? my_pow_mod(x*x%M,k>>1,M,z*x%M) : my_pow_mod(x*x%M,k>>1,M,z);}
constexpr unsigned long long operator "" _ten (unsigned long long value){ return my_pow(10,value); }
inline int k_bit(Integer x, int k){return (x>>k)&1;} //0-indexed
mt19937 mt(chrono::duration_cast<chrono::nanoseconds>(chrono::steady_clock::now().time_since_epoch()).count());
template<class T> string join(const vector<T>& v, const string& sep){
stringstream ss; for(int i=0; i<v.size(); i++){ if(i>0) ss << sep; ss << v[i]; } return ss.str();
}
string operator * (string s, int k){ string ret; while(k){ if(k&1) ret += s; s += s; k >>= 1; } return ret; }
}
constexpr long long mod = 9_ten + 7;
int main(){
int n,m;
cin >> n,m;
string s,t;
cin >> s,t;
vector<vector<vector<pair<int,int>>>> dp(m+1, vector<vector<pair<int,int>>>(n+1,
vector<pair<int,int>>(3, {1e8, 0})));
vector<vector<vector< vector<int> >>> dp_last(m+1, vector<vector< vector<int> >>(n+1,
vector< vector<int> >(3)));
dp[0][0][0] = {0,0};
for(int i=0; i<=m; i++){
for(int j=0; j<=n; j++){
if(j<n && i<m){
if(s[j] == t[i]){ //use
if( dp[i+1][j+1][0] > dp[i][j][0] ){
dp[i+1][j+1][0] = dp[i][j][0];
dp_last[i+1][j+1][0] = {i,j,0};
}
if( dp[i+1][j+1][0] > pair<int,int>{dp[i][j][1].first, j} ){
dp[i+1][j+1][0] = {dp[i][j][1].first, j};
dp_last[i+1][j+1][0] = {i,j,1};
}
if( dp[i+1][j+1][0] > pair<int,int>{dp[i][j][2].first, i} ){
dp[i+1][j+1][0] = {dp[i][j][2].first, i};
dp_last[i+1][j+1][0] = {i,j,2};
}
}else{ //replace
if( dp[i+1][j+1][0] > pair<int,int>{dp[i][j][0].first + 5, dp[i][j][0].second} ){
dp[i+1][j+1][0] = {dp[i][j][0].first + 5, dp[i][j][0].second};
dp_last[i+1][j+1][0] = {i,j,0};
}
if( dp[i+1][j+1][0] > pair<int,int>{dp[i][j][1].first + 5, j} ){
dp[i+1][j+1][0] = {dp[i][j][1].first + 5, j};
dp_last[i+1][j+1][0] = {i,j,1};
}
if( dp[i+1][j+1][0] > pair<int,int>{dp[i][j][2].first + 5, i} ){
dp[i+1][j+1][0] = {dp[i][j][2].first + 5, i};
dp_last[i+1][j+1][0] = {i,j,2};
}
}
}
//skip(delete)
if( j+1 <= n ){
if( dp[i][j+1][1] > pair<int,int>{dp[i][j][0].first+9, j} ){
dp[i][j+1][1] = {dp[i][j][0].first+9, j};
dp_last[i][j+1][1] = {i,j,0};
}
if( dp[i][j+1][1] > pair<int,int>{dp[i][j][1].first+2, dp[i][j][1].second} ){
dp[i][j+1][1] = {dp[i][j][1].first+2, dp[i][j][1].second};
dp_last[i][j+1][1] = {i,j,1};
}
if( dp[i][j+1][1] > pair<int,int>{dp[i][j][2].first+9, j} ){
dp[i][j+1][1] = {dp[i][j][2].first+9, j};
dp_last[i][j+1][1] = {i,j,2};
}
}
//skip(insert)
if(i+1 <= m){
if(dp[i+1][j][2] > pair<int,int>{dp[i][j][0].first+9, i} ){
dp[i+1][j][2] = {dp[i][j][0].first+9, i};
dp_last[i+1][j][2] = {i,j,0};
}
if(dp[i+1][j][2] > pair<int,int>{dp[i][j][1].first+9, i} ){
dp[i+1][j][2] = {dp[i][j][1].first+9, i};
dp_last[i+1][j][2] = {i,j,1};
}
if(dp[i+1][j][2] > pair<int,int>{dp[i][j][2].first+2, dp[i][j][2].second} ){
dp[i+1][j][2] = {dp[i][j][2].first+2, dp[i][j][2].second};
dp_last[i+1][j][2] = {i,j,2};
}
}
}
}
int state = min_element( dp[m][n].begin(), dp[m][n].end()) - dp[m][n].begin();
int a = m;
int b = n;
int ans = dp[m][n][state].first;
string ans_s, ans_t;
while( !(a==0 && b==0) ){
auto tmp = dp_last[a][b][state];
if(tmp[0] != a) ans_t += t[a-1];
if(tmp[1] != b) ans_s += s[b-1];
if(state == 1){
ans_t += '-';
}else if(state==2){
ans_s += '-';
}
a = tmp[0];
b = tmp[1];
state = tmp[2];
}
//println(a,b);
println(ans);
reverse(ans_s.begin(), ans_s.end());
reverse(ans_t.begin(), ans_t.end());
println(ans_s);
println(ans_t);
return 0;
}