제출 #729474

#제출 시각아이디문제언어결과실행 시간메모리
729474vjudge1DNA 돌연변이 (IOI21_dna)C++17
100 / 100
76 ms8536 KiB
#include "dna.h" #include<bits/stdc++.h> #define eb emplace_back using namespace std; const int up=1e5+5; int cnt[3][up],dp[3][3][up]; void init(string a,string b) { map<char,int>M{{'A',0},{'T',1},{'C',2}}; a=' '+a; b=' '+b; int n=a.size(); for(int i=1;i<n;++i){ for(int j=0;j<3;++j){ cnt[j][i]=cnt[j][i-1]; } cnt[M[a[i]]][i]++; cnt[M[b[i]]][i]--; for(int j=0;j<3;++j){ for(int k=0;k<3;++k){ dp[j][k][i]=dp[j][k][i-1]; } } dp[M[a[i]]][M[b[i]]][i]++; } } int get_distance(int x,int y){ x++; y++; for(int i=0;i<3;++i){ if(cnt[i][y]^cnt[i][x-1]) return -1; } int c[3][3]; for(int i=0;i<3;++i){ for(int j=0;j<3;++j){ c[i][j]=dp[i][j][y]-dp[i][j][x-1]; } } int ans=min(c[1][0],c[0][1])+min(c[1][2],c[2][1])+min(c[0][2],c[2][0]); return ans+2*abs(c[0][1]-c[1][0]); }
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