Submission #550229

#	Time	Username	Problem	Language	Result	Execution time	Memory
550229		rafatoa	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

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

#define int long long

int n;
string a, b;

void init(string al, string bl){
    a = al; b = bl;
}

int get_distance(int x, int y){
    if(x == y){
        return (a[x] == b[x] ? 0 : -1);
    } else if(y-x == 1){
        if(a[x] == b[x] && a[y] == b[y]) return 0;
        if(a[y] == b[x] && a[x] == b[y]) return 1;
        else return -1;
    }
}

Compilation message (stderr)

dna.cpp: In function 'long long int get_distance(long long int, long long int)':
dna.cpp:21:1: warning: control reaches end of non-void function [-Wreturn-type]
   21 | }
      | ^
/usr/bin/ld: /tmp/cc2X4naZ.o: in function `main':
grader.cpp:(.text.startup+0x39d): undefined reference to `get_distance(int, int)'
collect2: error: ld returned 1 exit status