Submission #867474

#	Time	Username	Problem	Language	Result	Execution time	Memory
867474		thegamercoder19	Mutating DNA (IOI21_dna)	C++17	0 / 100	18 ms	7628 KiB

dna

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

vector<vector<int>> prefix;

void init(std::string a, std::string b) {
	prefix.resize(3, vector<int>(a.size()+1));
	  for(int i=0; i<a.size(); i++) {
        for(int j=0; j<3; j++) {
            prefix[j][i+1] = prefix[j][i];
        }
        prefix[a[i]-'A'][i+1]++;
        prefix[b[i]-'A'][i+1]--;
    }
}

int get_distance(int x, int y) {
	 int dist = 0;
        for(int i=0; i<3; i++) {
            dist += abs(prefix[i][y+1] - prefix[i][x]);
        }
		return dist/2;
}

Compilation message (stderr)

dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:9:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |    for(int i=0; i<a.size(); i++) {
      |                 ~^~~~~~~~~

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