Submission #1255799

#	Time	Username	Problem	Language	Result	Execution time	Memory
1255799		robijoy	Mutating DNA (IOI21_dna)	C++20	Compilation error	0 ms	0 KiB

dna

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

string A,B;
int n;

void init(std::string a, std::string b) {
	A = a;
	B = b;
	n = a.size();
}

int get_distance(int x, int y) {
	if(x == y) {
		if(A[x]!=B[y]) {
			return -1;
		}else {
			return 0;
		}
	}
	int ans = -1;

	string ro = A.substr(x,y-x+1);
	string ra = B.substr(x,y-x+1);
	string roo = ro;
	string raa = ra;
	sort(roo.begin(), roo.end());
	sort(raa.begin(), raa.end());
	
	if(roo == raa) { 
		int cnt = 0;
		for (int i = 0; i < ro.size(); ++i)
		{
			if(ro[i] != ra[i]) cnt++;
		}
		ans = cnt/2;
	}
	return ans;
}

// int main() {
// 	init("ATATAT","ATTATA");
// 	cout<<get_distance(0,1)<<endl;
// }// #include <bits/stdc++.h>
#include "dna.h"
using namespace std;

string A,B;
int n;

void init(std::string a, std::string b) {
	A = a;
	B = b;
	n = a.size();
}

int get_distance(int x, int y) {
	if(x == y) {
		if(A[x]!=B[y]) {
			return -1;
		}else {
			return 0;
		}
	}
	int ans = -1;

	string ro = A.substr(x,y-x+1);
	string ra = B.substr(x,y-x+1);
	string roo = ro;
	string raa = ra;
	sort(roo.begin(), roo.end());
	sort(raa.begin(), raa.end());
	
	if(roo == raa) { 
		int cnt = 0;
		for (int i = 0; i < ro.size(); ++i)
		{
			if(ro[i] != ra[i]) cnt++;
		}
		ans = cnt/2;
	}
	return ans;
}

// int main() {
// 	init("ATATAT","ATTATA");
// 	cout<<get_distance(0,1)<<endl;
// } 

Compilation message (stderr)

dna.cpp:49:8: error: redefinition of 'std::string A'
   49 | string A,B;
      |        ^
dna.cpp:5:8: note: 'std::string A' previously declared here
    5 | string A,B;
      |        ^
dna.cpp:49:10: error: redefinition of 'std::string B'
   49 | string A,B;
      |          ^
dna.cpp:5:10: note: 'std::string B' previously declared here
    5 | string A,B;
      |          ^
dna.cpp:50:5: error: redefinition of 'int n'
   50 | int n;
      |     ^
dna.cpp:6:5: note: 'int n' previously declared here
    6 | int n;
      |     ^
dna.cpp:52:6: error: redefinition of 'void init(std::string, std::string)'
   52 | void init(std::string a, std::string b) {
      |      ^~~~
dna.cpp:8:6: note: 'void init(std::string, std::string)' previously defined here
    8 | void init(std::string a, std::string b) {
      |      ^~~~
dna.cpp:58:5: error: redefinition of 'int get_distance(int, int)'
   58 | int get_distance(int x, int y) {
      |     ^~~~~~~~~~~~
dna.cpp:14:5: note: 'int get_distance(int, int)' previously defined here
   14 | int get_distance(int x, int y) {
      |     ^~~~~~~~~~~~