32 lines
893 B
C++
32 lines
893 B
C++
#include <iostream>
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#include <string>
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#include <vector>
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using namespace std;
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int main(){
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string a, b;
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cin >> a >> b;
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int a_size = a.size(), b_size = b.size();
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vector<vector<pair<int, string>>> dp(a.size() + 1, vector<pair<int, string>>(b_size + 1, {0, ""}));
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for(int i = 1; i <= a_size; i++){
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for(int j = 1; j <= b_size; j++){
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if(a[i - 1] == b[j - 1]) {
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dp[i][j].first = dp[i - 1][j - 1].first + 1;
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string tmp = dp[i - 1][j - 1].second;
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tmp.push_back(a[i - 1]);
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dp[i][j].second = tmp;
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}
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else{
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dp[i][j].first = max(dp[i - 1][j].first, dp[i][j - 1].first);
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if(dp[i - 1][j].first > dp[i][j - 1].first){
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dp[i][j].second = dp[i - 1][j].second;
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}
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else dp[i][j].second = dp[i][j - 1].second;
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}
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}
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}
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//cout << dp[a_size][b_size].first << " " << dp[a_size][b_size].second << endl;
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cout << dp[a_size][b_size].second << endl;
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return 0;
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}
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