Submission #646515

#	Time	Username	Problem	Language	Result	Execution time	Memory
646515		kkkkkkkk	Mutating DNA (IOI21_dna)	C++17	21 / 100	34 ms	3760 KiB

dna

#include "dna.h"
#include <iostream>

using namespace std;

string a,b;

void init(string A,string B)
{
    a=A;
    b=B;
}

int get_distance(int x,int y)
{
    string a1,b1;
    for (int i=x;i<=y;i++)
    {
        a1+=a[i];
        b1+=b[i];
    }
    int aA=0,aC=0,aT=0,bA=0,bC=0,bT=0;
    for (int i=0;i<a1.size();i++)
    {
        if (a1[i]=='A') aA++;
        else if (a1[i]=='C') aC++;
        else aT++;
        if (b1[i]=='A') bA++;
        else if (b1[i]=='C') bC++;
        else bT++;
    }
    int br=0;
    if (aA==bA&&aC==bC&&aT==bT)
    {
        for (int i=0;i<a1.size();i++)
            if (a1[i]!=b1[i]) br++;
        if (br==0) return 0;
        return br-1;
    }
    else
        return -1;
}
/*
int main()
{
    init("ATACAT", "ACTATA");
    cout << get_distance(1,3) << endl;
    cout << get_distance(4,5) << endl;
    cout << get_distance(3,5) << endl;
    return 0;
}*/

Compilation message (stderr)

dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:24:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (int i=0;i<a1.size();i++)
      |                  ~^~~~~~~~~~
dna.cpp:36:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for (int i=0;i<a1.size();i++)
      |                      ~^~~~~~~~~~

• Subtask 1: 21 / 21
• Subtask 2: 0 / 22
• Subtask 3: 0 / 13
• Subtask 4: 0 / 28
• Subtask 5: 0 / 16