제출 #568162

#제출 시각아이디문제언어결과실행 시간메모리
568162d4xnDNA 돌연변이 (IOI21_dna)C++17
56 / 100
36 ms6576 KiB
#include "dna.h" #include <bits/stdc++.h> using namespace std; const int N = 1e5+5; int pa[2][N]; int pt[2][N]; int pc[2][N]; int pdif[N]; void init(std::string a, std::string b) { int n = min(a.size(), b.size()); for (int i = 0; i < n; i++) { pa[0][i] = (i == 0 ? 0 : pa[0][i-1]); pt[0][i] = (i == 0 ? 0 : pt[0][i-1]); pc[0][i] = (i == 0 ? 0 : pc[0][i-1]); pa[1][i] = (i == 0 ? 0 : pa[1][i-1]); pt[1][i] = (i == 0 ? 0 : pt[1][i-1]); pc[1][i] = (i == 0 ? 0 : pc[1][i-1]); pdif[i] = (i == 0 ? 0 : pdif[i-1]); if (a[i] == 'A') pa[0][i]++; if (a[i] == 'T') pt[0][i]++; if (a[i] == 'C') pc[0][i]++; if (b[i] == 'A') pa[1][i]++; if (b[i] == 'T') pt[1][i]++; if (b[i] == 'C') pc[1][i]++; if (a[i] != b[i]) pdif[i]++; } } int get_distance(int x, int y) { int aa, ab, ta, tb, ca, cb, dif; aa = pa[0][y] - (x == 0 ? 0 : pa[0][x-1]); ab = pa[1][y] - (x == 0 ? 0 : pa[1][x-1]); ta = pt[0][y] - (x == 0 ? 0 : pt[0][x-1]); tb = pt[1][y] - (x == 0 ? 0 : pt[1][x-1]); ca = pc[0][y] - (x == 0 ? 0 : pc[0][x-1]); cb = pc[1][y] - (x == 0 ? 0 : pc[1][x-1]); dif = pdif[y] - (x == 0 ? 0 : pdif[x-1]); if (aa != ab || ca != cb || ta != tb) return -1; return dif/2 + dif%2; }
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