Submission #552812

#	Time	Username	Problem	Language	Result	Execution time	Memory
552812		Jomnoi	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include <bits/stdc++.h>
#include "dna.h"
using namespace std;

const int MAX_N = 1e5 + 10;

int N;
int preTA[MAX_N], preAA[MAX_N];
int preTB[MAX_N], preAB[MAX_N];
int preTA[MAX_N], preAT[MAX_N];

void init(string a, string b) {
	N = a.length();
	for(int i = 1; i <= N; i++) {
		preTA[i] = preTA[i - 1] + (a[i - 1] == 'T');
		preTB[i] = preTB[i - 1] + (b[i - 1] == 'T');
		preAA[i] = preAA[i - 1] + (a[i - 1] == 'A');
		preAB[i] = preAB[i - 1] + (b[i - 1] == 'A');
		preTA[i] = preTA[i - 1] + (a[i - 1] == 'T' and b[i - 1] == 'A');
		preAT[i] = preAT[i - 1] + (a[i - 1] == 'A' and b[i - 1] == 'T');
	}
}

int range(int x, int y, int *a) {
	return a[y] - a[x - 1];
}

int get_distance(int x, int y) {
	if(range(x, y, preTA) != range(x, y, preTB) or range(x, y, preAA) != range(x, y, preAB)) {
		return -1;
	}

	return min(range(x, y, preTA), range(x, y, preAT));
}

Compilation message (stderr)

dna.cpp:10:5: error: redefinition of 'int preTA [100010]'
   10 | int preTA[MAX_N], preAT[MAX_N];
      |     ^~~~~
dna.cpp:8:5: note: 'int preTA [100010]' previously declared here
    8 | int preTA[MAX_N], preAA[MAX_N];
      |     ^~~~~