Submission #529192

#	Time	Username	Problem	Language	Result	Execution time	Memory
529192		Icebear16	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include "dna.h"
long long n,q;
std::string s;
std::string c;
void init(std::string a, std::string b) {
	s=a,c=b;
	while(q--){
    	long long x,y;
		get_distance(x,y);
	}
}
int get_distance(long long x, long long y) {
	long long h1=0,h2=0,l1=0,l2=0,k1=0,k2=0;
	for(long long i=x;i<=y;i++){
		if(s[i]=='A'){
			h1++;
		}else if(s[i]=='T'){
			l1++;
		}else if(s[i]=='C'){
			k1++;
		}
		if(c[i]=='A'){
			h2++;
		}else if(c[i]=='T'){
			l2++;
		}else if(c[i]=='C'){
			k2++;
		}
	}
	if(h1==h2 && l1==l2 && k1==k2){
		long long j=0;
		for(long long i=x;i<=y;i++){
			if(s[i]!=c[i]){
				j+=1;
			}
		}
		if(j%2==1){
			j+=1;
		}
		return j/2;
	}else{
		return -1;
	}
}

Compilation message (stderr)

dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:9:15: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
    9 |   get_distance(x,y);
      |   ~~~~~~~~~~~~^~~~~
dna.cpp:9:15: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
/usr/bin/ld: /tmp/ccux7Stl.o: in function `main':
grader.cpp:(.text.startup+0x39d): undefined reference to `get_distance(int, int)'
/usr/bin/ld: /tmp/ccEBcTFk.o: in function `init(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
dna.cpp:(.text+0x35): undefined reference to `get_distance(int, int)'
collect2: error: ld returned 1 exit status