Submission #994555

#	Time	Username	Problem	Language	Result	Execution time	Memory
994555		ducksaysquack	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include <bits/stdc++.h>
#define int long long
using namespace std;
char c[3] = {'A','C','T'};
vector<vector<int>> v(3), w(3);
vector<int> p;
void init(string a, string b) {
	int n = a.size();
	for(int i=0;i<3;i++) v[i].resize(n+1), w[i].resize(n+1);
	p.resize(n+1);
	for(int i=0;i<n;i++) for(int j=0;j<3;j++) v[j][i+1] = (a[i]==c[j])+v[j][i], w[j][i+1] = (b[i]==c[j])+w[j][i];
	for(int i=0;i<n;i++) p[i+1] = p[i]+(a[i]!=b[i]);
}
int get_distance(int x, int y) {
	bool yes = true;
	for(int i=0;i<3;i++) if(v[i][y+1]-v[i][x] != w[i][y+1]-w[i][x]) yes = false;
	if(yes) return (p[y+1]-p[x]+1)/2;
	else return -1;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccIpiXtQ.o: in function `main':
grader.cpp:(.text.startup+0x39d): undefined reference to `get_distance(int, int)'
collect2: error: ld returned 1 exit status