[2016-03-28][POJ][1458][Common Subsequence]

• 时间:2016-03-28 12:56:39 星期一

• 题目编号:[2016-03-28][POJ][1458][Common Subsequence]

• 题目大意:最长公共序列

#include <cstring>
#include <iostream>
#include <string>
using namespace std;
typedef long long LL;
const int maxn = 1000 + 100;
int dp[maxn][maxn];
int main(){
        string str1,str2;
        while(cin>>str1>>str2){
                int m = str1.length();
                int n = str2.length();
                memset(dp,0,sizeof(dp));
                for(int i = 0;i < m ; ++i){
                        for(int j = 0;j < n ; ++j){
                                if(str1[i] == str2[j] ){
                                        dp[i+1][j+1] = dp[i][j] + 1;
                                }else {
                                        dp[i+1][j+1] = max(dp[i+1][j],dp[i][j+1]);
                                }
                        }
                }
                cout<<dp[m][n]<<'\n';
        }
        return 0;
}

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