Submission #729073

#	Time	Username	Problem	Language	Result	Execution time	Memory
729073		vjudge1	Mutating DNA (IOI21_dna)	C++17	21 / 100	35 ms	3072 KiB

dna

#include "dna.h"
#include<bits/stdc++.h>
#define eb emplace_back

std::vector<char>A,B;

void init(std::string a, std::string b) {
    A.eb(' ');
    B.eb(' ');
    for(int i=0;i<a.size();++i){
        A.eb(a[i]);
        B.eb(b[i]);
    }
}

int get_distance(int x,int y){
    x++;
    y++;
    int noA=0,noC=0,noT=0;
    int res=0;
    for(int i=x;i<=y;++i){
        if(A[i]!=B[i]) res++;
        if(A[i]=='A') noA++;
        else if(A[i]=='C') noC++;
        else noT++;
        if(B[i]=='A') noA--;
        else if(B[i]=='C') noC--;
        else noT--;
    }
    if(noA!=0 or noC!=0 or noC!=0) return -1;
    if(res) res--;
	return res;
}

Compilation message (stderr)

dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:10:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for(int i=0;i<a.size();++i){
      |                 ~^~~~~~~~~

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