제출 #1204625

#제출 시각아이디문제언어결과실행 시간메모리
1204625tamzidMutating DNA (IOI21_dna)C++20
0 / 100
21 ms4416 KiB
#include <bits/stdc++.h> #include "dna.h" using namespace std; string A,B; vector<int> a_T,a_A,b_T,b_A,diff; void init(std::string a, std::string b) { A = a; B = b; a_A.resize(A.size()+1); b_A.resize(A.size()+1); b_T.resize(A.size()+1); a_T.resize(A.size()+1); diff.resize(A.size()+1); for(int i=0;i<A.size();++i) { a_A[i+1]+=a_A[i]; a_T[i+1]+=a_T[i]; b_A[i+1]+=b_A[i]; b_T[i+1]+=b_T[i]; if(A[i] == 'A') ++a_A[i+1]; else ++a_T[i+1]; if(B[i] == 'A') ++b_A[i+1]; else ++b_T[i+1]; if(a[i] != b[i]) { ++diff[i+1]; } } } int get_distance(int x, int y) { int at = a_T[y+1] - a_T[x]; int aa = a_A[y+1] - a_A[x]; int bt = b_T[y+1] - b_T[x]; int ba = b_A[y+1] - b_A[x]; int difff = diff[y+1] - diff[x]; if(difff & 1) return -1; if(at != bt || aa != ba) return -1; return difff / 2; }
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