Submission #699038

#	Time	Username	Problem	Language	Result	Execution time	Memory
699038		NourWael	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include <iostream>
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

int difference=0;
int d[100001];
vector<vector<int>>numbersA;
vector<vector<int>>numbersB;
int n,q;
string f,s;
int aa=0;
int ta=0;
int ca=0;
int ab=0;
int tb=0;
int cb=0;
int x,y;

void init(string a, string b)
{
     for(int i=0; i<n; i++)
    {
        if(a[i]!=b[i])
        {
            difference++;
        }
        d[i]=difference;

        if(a[i]=='A')
        {
            aa++;
        }
        else if (a[i]=='T')
        {
            ta++;
        }
        else if (a[i]=='C')
        {
            ca++;
        }
        numbersA[i][0]=aa;
        numbersA[i][1]=ta;
        numbersA[i][2]=ca;

        if(b[i]=='A')
        {
            ab++;
        }
        else if (b[i]=='T')
        {
            tb++;
        }
        else if (b[i]=='C')
        {
            cb++;
        }
        numbersB[i][0]=ab;
        numbersB[i][1]=tb;
        numbersB[i][2]=cb;
    }

}

int get_distance(int x,int y)
{
     int div=d[y];
        int da1=numbersA[y][0];
        int dt1=numbersA[y][1];
        int dc1=numbersA[y][2];
        int da2=numbersB[y][0];
        int dt2=numbersB[y][1];
        int dc2=numbersB[y][2];

        if(x!=0)
        {
           div=d[y]-d[x-1];

            da1-=numbersA[x-1][0];
            dt1-=numbersA[x-1][1];
            dc1-=numbersA[x-1][2];
            da2-=numbersB[x-1][0];
            dt2-=numbersB[x-1][1];
            dc2-=numbersB[x-1][2];
        }


        if(da1==da2 && dt1==dt2 && dc1==dc2)
        {
           return ceil((double)div/2);
        }
        else
        {
            return -1;
        }
}
int main()
{

    cin>>n>>q;
    cin>>f>>s;
    numbersA.resize(n+1,vector<int>(3));
      numbersB.resize(n+1,vector<int>(3));


    init(f,s);


     while(q--)
     {
        cin>>x>>y;
       cout<<get_distance(x,y)<<'\n';

     }

    return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccbLQAGC.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc1d8iBA.o:dna.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status