Submission #558555

#	Time	Username	Problem	Language	Result	Execution time	Memory
558555		pawned	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include "dna.h"

void init(std::string a, std::string b) {
	int N = a.size();
	int pfs1[N + 1][3];
	pfs1[0][0] = 0;
	pfs1[0][1] = 0;
	pfs1[0][2] = 0;
	int pfs2[N + 1][3];
	pfs2[0][0] = 0;
	pfs2[0][1] = 0;
	pfs2[0][2] = 0;
	for (int i = 1; i <= N; i++) {
		if (a[i - 1] == 'A')
			pfs1[i][0] = pfs1[i - 1][0] + 1;
		if (a[i - 1] == 'T')
			pfs1[i][1] = pfs1[i - 1][1] + 1;
		if (a[i - 1] == 'C')
			pfs1[i][2] = pfs1[i - 1][2] + 1;
		if (b[i - 1] == 'A')
			pfs2[i][0] = pfs2[i - 1][0] + 1;
		if (b[i - 1] == 'T')
			pfs2[i][1] = pfs2[i - 1][1] + 1;
		if (b[i - 1] == 'C')
			pfs2[i][2] = pfs2[i - 1][2] + 1;
	}
	int pfs[N + 1];
	pfs[0] = 0;
	for (int i = 1; i <= N; i++) {
		pfs[i] = pfs[i - 1];
		if (a[i - 1] != b[i - 1])
			pfs[i]++;
	}
	return;
}

int get_distance(int x, int y) {
	bool works = true;
	for (int i = 0; i < 3; i++) {
		if (pfs1[y][i] - pfs[x - 1][i] != pfs2[y][i] - pfs2[x - 1][i])
			works = false;
	}
	if (!works)
		return -1;
	else
		return (pfs[y] - pfs[x - 1]);
}

Compilation message (stderr)

dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:40:7: error: 'pfs1' was not declared in this scope
   40 |   if (pfs1[y][i] - pfs[x - 1][i] != pfs2[y][i] - pfs2[x - 1][i])
      |       ^~~~
dna.cpp:40:20: error: 'pfs' was not declared in this scope
   40 |   if (pfs1[y][i] - pfs[x - 1][i] != pfs2[y][i] - pfs2[x - 1][i])
      |                    ^~~
dna.cpp:40:37: error: 'pfs2' was not declared in this scope
   40 |   if (pfs1[y][i] - pfs[x - 1][i] != pfs2[y][i] - pfs2[x - 1][i])
      |                                     ^~~~
dna.cpp:46:11: error: 'pfs' was not declared in this scope
   46 |   return (pfs[y] - pfs[x - 1]);
      |           ^~~